Wearable Pump Comparison
I want to start this by explaining that “wearable pumps” and “portable” pumps are categorized completely differently in my opinion. I have an entire separate post on portable pumps, as well as collection cups that pair with portable pumps coming next. In this post, we will talk through some of the pros and cons of different wearable pumps.
Let me explain…
Wearable pumps are pumps that can be worn in the bra. The motor, flange, and collection container are all within the same piece worn in the bra without tubing or the need for a “hands-free” bra.
Portable pumps are pumps that can be touted around without being tethered to the wall, and are many times hand-sized, themselves. However, portable pumps have the pump motor separate from the flanges/bottles (connected by tubing like a “regular” breast pump). Portable pumps tend to be a bit stronger, seemingly better suction, less leaking, and in some cases- easier to clean than the “wearable” pumps for most women.
MY THOUGHTS ON wearable pumps
Wearable pumps are incredible and definitely have their place! I think they can be amazing for throwing on “on the go” when you are out in public and want to be discrete, if you have a demanding job where it’s difficult to take those legal breaks, or you work “out in the field”, etc. There are so many instances where a wearable pump is a better option than not getting that milk moving at all, or some instances where it’s the only option. However, I do want to acknowledge that though wearable pumps have their place, it’s truly best that they aren’t used as a primary pump (especially if you use your pump often or exclusively). Most wearable pumps just don’t tend to empty the breast as well as a more traditional pump for most women. The motor typically isn’t quite as strong and the mechanics/fit just aren’t the same as a traditional or hospital grade pump. I will share more about my experience with this, as well as some other mamas’ experiences at the bottom of this post!
I also wanted to give the disclaimer that I am not affiliated with any of these pump companies and this post is in no way sponsored or paid for. I just wanted to create a resource you could come to if you’re choosing between different wearable pumps. I provide facts and stats about these pumps from the pump manufacturers, list off some potential pros and cons, and share my experiences with using these pumps myself (yes, I always trial each pump I share about!). These are all my own, unbiased opinions based on personal experience as a working mother of 5, and my professional experience as a Certified Lactation Counselor and Mom Baby Nurse.
If you’re looking for a pump comparison between the Elvie and the OG (original) Willow Pump— I share my thoughts and experiences here.
This post will look at multiple wearable pumps (click each pump to jump to it’s section): Elvie Pump | Willow Go | LM Imani | Momcozy | Eufy | Motif | Zomee
If you would like to jump to the side by side comparison of these pumps, you can do so here!
ELVIE pump
Cost
$549 for double (4 installment payments of $137.49) and $299.99 for single (4 installment payments of $74.99)
Size
Elvie Pump is pretty discrete for a wearable pump! In my opinion, anything you wear in your bra (besides your breasts) are going to look slightly abnormal. So no wearable pump is going to offer the benefit of “no one can tell at all, whatsoever'“, but this one is pretty dang close. The shape also seems to conform well to the breast. You can see below how it looked in my (years-old, milk-stained, but favorite!) supportive bra and with a normal shirt on.
What’s included
2 motors (hubs) if purchased a double
4 Bottles (5oz/150ml, BPA free)
2 Breast Shields (24mm)
2 Breast Shields (28mm)
4 Valves
4 Spouts
4 Seals
4 Storage Lids
4 Bra Adjusters
2 USB Charging Cables
2 Carry Bags
Instructions for Use— download the app
HSA/FSA eligible
yes
Hygienics
Elvie pump is a “closed system” so milk cannot get to motor; dishwasher safe, BPA free
Cleaning
Only a few pieces, but sometimes the inner container is hard to get to and clean with a regular sized brush
How much it holds
Each collection cup holds 5oz/150mL, both freezer and fridge safe; I did feel that the sensors in the pump that showed up in the app would sometimes be slightly “off” based on what I would actually get. Regardless, I think it’s important to go off of your own measurements, not just what the app says!
Flange sizes
Includes 2 sizes flanges (24mm and 28mm), but 21mm can be purchased separately if needed
Leaks/Ensuring a proper fit
This was a bit tricky with the pump system being enclosed. Elvie recommends lining up the flange to nipple to ensure it’s centered, before sliding on the pump. I also recommend wearing a very supportive bra. You want the pump to be as flush against the breast as possible, otherwise it can easily lose suction + leak. I did notice some leaking with movement on occasion
Modes
Elvie pump has 2 modes: stimulation + expression modes; it auto switches from stim to expression mode at 2 minutes (but if you need to switch before 2 mins, or want to switch modes throughout your sesh, you can in the app!); you can have a different mode on each side while pumping if needed
Pump Strength
(~220mmHG)— In my opinion, this pump is a much gentler option (which may work better for some than others!)— remember, higher suction/vacuum does not mean more milk. It truly depends how your body responds to suction + what levels you’re comfortable with! I, however, needed the highest level of suction for this pump to work well for me, and my yield still wasn’t the same as with one of my “regular pumps”, but only a little bit off!
Noise
Elvie pump is pretty quiet and discrete, but you can still hear the motors running if it’s completely quiet— which is to be expected
App
The app helps keep your pump up to date, lets you know about updates, and allows you to see how much you are pumping per side/ mode/ suction strengths/ etc
Battery Life
Rechargeable USB, made for 2.5 hours of pumping— I am usually able to get about 3 pumping sessions before needing to charge, but it truly depends on the settings you use. If you aren’t needing the highest level suction, for example, you may be able to squeeze in a 4th pump before a charge is needed. The pump does take around 2 hours to charge.
Warranties
2 year warranty on pump motor (hub) and 90 day warranty on washable parts
Pros— Discrete and quiet, gentle and comfortable, smaller size than competitors, okay battery life
Cons— Expensive, not a strong suction (if you’re someone who needs that!), ensuring a proper centering of nipple in flange takes practice/hard to see, leaking with movement (which is sad because the point of wearable pumps is to be able to move), takes a while to charge, the app bugs are frustrating
I put up a box within my Instagram community to ask their thoughts about the Elvie + experience (good and bad!) to help share different sides and perspectives. I attached some of the responses here.
I share my personal experience with this pump at the end.
THE WILLOW go
Cost
$329.99 (+$17.99 if you need flanges other than 21 or 24mm)
Size
Willow Go is bulky in my opinion. As stated before, no pump will look like you “aren’t wearing anything extra”, but this one is large and heavy. I was a bit disappointed that it wasn’t any sleeker than their original first gen Willow pump. It’s still bulky and heavy compared to the Elvie. Below (first 2 photos) is the Willow Go in my bra and (last 2 photos) is one Willow Go + one Elvie Pump in my bra. You can see how the willow protrudes further outward than the Elvie.
What’s included
2 pumps
2 flanges (21mm)
2 flanges (24mm)
2 container bowls (5 oz.)
2 container backs
2 pump diaphragms
2 duckbill valves
2 USB charging cables
Nipple Ruler
Instructions for Use— download the app
HSA/FSA eligible
yes
Hygienics
This pump is a “closed system” so milk cannot get to motor; dishwasher safe
Cleaning
There were a few more pieces overall than the other pumps, but they were larger and pretty easy to clean! All of those pieces are also dishwasher safe.
How much it holds
Choose between 5oz or 7oz cup sizes (but have to pay extra for 7oz)
Flange sizes
Available in 15-27mm and comes with 1-2 sized flanges (depending on your needed size), however, you have to pay $17.99 extra if you need a diff size from 21 or 24mm
Leaks/Ensuring a proper fit
Again, lining up your nipple in the flange is a bit tricky since the pump encompasses it. But you can place it on the same way you would the Elvie. The Willow Go does not seem to have as good of a seal as the regular Willow Gen 1 does (gravity defying “latch suction technology” + spill proof bags for Gen 1 Willow), so range of motion can be limited with the Willow Go, or it will leak.
Modes
Willow Go has 2 modes: stimulation + expression modes; you can have a different mode on each side while pumping if needed. Even has a “mode” button (as you can see in the photo to toggle).
Pump Strength
Up to 280mmHg, and 9 levels of suction
First and foremost, one of the things listed on their site is that this pump is “hospital grade suction” and I think that is incredibly misleading for so many parents. Does it have good suction strength for a portable? Sure. But is it “hospital grade” no. We can chat about this further another time! Hospital Grade pumps are in an entirely different class for milk removal (some of the strongest pumps available (usually 300-350mmHG), many rented through hospitals), so please do not think that this pump can be considered hospital grade. Off my soapbox, but dang that’s important! I did feel like the pump’s suction was decent and I did not need to go all the way up on suction like I did on the Elvie. However it also took me longer to empty and I did not get the yield I typically do (which is to be expected to some degree with a wearable!)
Noise
Willow Go is fairly quiet. I feel it’s much quieter than the machine-like noises that the first gen Willow made (they were loud!). It is similar to the gentle soft noise of the Elvie.
App
yes
Battery Life
Rechargeable USB, made for “3 sessions with a full charge” per their site
Warranties
12 month warranty for pump motors and 90 day warranty for washable pieces
Pros— Decent suction strength for a wearable, many levels of suction, large pieces make washing easy, app was simple, way better functionality than Willow Gen 1, quiet, more flange size options, options for 5oz or 7oz containers, free shipping, I did love that it came with a nipple ruler to help measure for flange sizes!
Cons— Bulky and heavy still, Any “different” necessities (flange sizes, container sizes) all cost extra on top of original cost (adds up fast!), leaks a little bit with movement, a bit misleading marketing (I’m a bit of a stickler tho!)
I put up a box within my Instagram community to ask their thoughts about the Willow Go + experience (good and bad!) to help share different sides and perspectives. I attached some of the responses above.
I share my personal experience with this pump at the end, as well as this Instagram highlight: Willow Go
LEGENDAIRY MILK imani
Cost
$139.99 for double and $74.99 for single— great price! Def one of the more affordable “wearables”. They also offer a military discount + I have a code with LM (NON affiliate, just money off for you, no money made on my end) KARRIE15
Size
The Imani is lightweight, but bulky. The collection cup is large and the small pump motor sits on top of it— which makes for a “bulky” appearance and feel, but the pump itself is not heavy. You can typically see it coming out of the top of a bra/shirt if it’s lower cut. You can see in the photos below what it looks like in my bra from the front and side, as well as in a regular tee shirt.
What’s included
2 x motor
2 x 7 oz/200 ml clear plastic cup
2 x silicone membrane
2 x 28 mm silicone breast shield
2 x 25 mm silicone insert (other sizes available)
2 x valve base
2 x duckbill valve
2 x charging cable
HSA/FSA eligible
Yes
Hygienics
This pump is a “closed system” so milk cannot get to motor; also phthalate- free, BPA free, and FDA APPROVED!
Cleaning
Per the LM website, this pump is not made for dishwasher use. LM recommends boiling parts to sterilize for initial use, but then only cleaning via hand with hot soapy water thereafter. Not going to lie, this is one bummer for me as I love to throw things in the dishwasher!
How much it holds
7oz/200mL per collection cup
Flange sizes
Comes with 28mm flanges with 25mm inserts, but also offers 17mm, 19mm, 21mm inserts OR an option for 32mm flanges, which is awesome! The flanges are SILICONE, which is SO much more comfortable than hard plastic and one of my absolute fave things!
Leaks/Ensuring a proper fit
Since the pump is clear and the flanges are silicone, I felt it was a bit easier to see my nipple lined up/centered than some of the other wearable pumps, but still takes some practice since it’s encompassed with the rest of the pump. It’s also so important to make sure the silicone flange is sealed all the way around the rim of the collection cup or it will leak easily!
Another note about the collection cups— you can buy a “cap” for the cups of this pump (where you’d attach the pump motor), and it can become a collection cup instead that attaches via tubing to multiple different other pump brands! Kind of like a “2-in-1” where it can be a wearable collection cup or portable collection cup!
Modes
Imani has 2 modes (stimulation + expression) with 5 levels of suction per mode
Pump Strength
Maxes at 300mmHG; absolutely a stronger suction than the other wearable pumps and when I use it, I am typically able to get close to my full yield I normally get with other pumps (maybe a tad less, give or take). I also think I respond better to this wearable pump due to the silicone flanges.
Noise
Imani i2 is pretty quiet, I would say comparable to the WillowGo or Elvie
App
no
Battery Life
Rechargeable USB, made for “2.5 hours of pump time” per their site; I usually get 3-4 ish sessions before needing a charge; takes 3 hours to fully charge.
Warranties
12 month warranty for pump motors
Pros— Nice suction strength for a wearable, silicone flanges are so much more comfortable, multiple suction levels with the 2 modes, decent battery life, lightweight, quiet, love that the pump motor can pop right on top easily (and right off) after securing the cups on your breast.
Cons— Bulky and not discrete, has potential to leak if the rim of the silicone is not sealed properly on the collection cup, takes a while to charge, not dishwasher safe/must hand wash which gets tedious
I put up a box within my Instagram community to ask their thoughts about the Imani and Momcozy + experience (good and bad!) to help share different sides and perspectives. I attached some of the responses below.
I share my personal experience with this pump at the end of this post, as well as my Instagram highlight here: LM Imani and my “pumping on the go” reel here.
MOMCOZY s12
Cost
$139.99
Size
The cups are the same size as the LM Imani pump. Overall, pump is bulky- maybe a tad smaller than the imani, but not much!
WHAT’S INCLUDED
Pump Motor * 2
Milk Collector (180ml) * 2
Silicone Flange (24 mm) * 2
Silicone Diaphragm * 2
Duckbill Valve * 4
Linker * 2
USB Cable * 2
nipple measurer tool
HSA/FSA ELIGIBLE
Yes
HYGIENICS
This pump is a “closed system” so milk cannot get to motor; flanges made of food grade silicone; double sealed flanges help prevent leaking
CLEANING
Per the Momcozy site, it’s preferred that these parts are handwashed in warm soapy water. The high temp of the dishwasher or any sterilizing bags may cause deformation of the parts.
HOW MUCH IT HOLDS
6oz / (120-180mL per collection cup)
FLANGE SIZES
Comes with 24mm flanges. They have a nipple measuring tool that comes with your pump. The flanges are SILICONE, which is SO much more comfortable than hard plastic and one of my absolute fave things just like the Momcozy S9 and LM Imani.
LEAKS/ENSURING A PROPER FIT
Easier to see nipple lined up for a proper fit, but does still take some practice (as any wearable pump does!). It also does have potential to leak if the silicone flange is not completely snapped/sealed all the way around the rim of the collection cup, but less likely with the double seal
MODES
The S12 has 3 modes (stimulation, expression and mixed) with 9 levels. The LM Imani and Momcozy S9 only has 5 levels of suction and 2 phases (stim and expression). This allows for more options in finding a suction strength that works for you. I did not personally need to go as high on the S12 as I did on the S9. I felt the S12 suction was slightly stronger. I also didn’t feel the need for the “mixed” mode, but some people may respond well to it.
PUMP STRENGTH
~280-300mmHG; does seem to have a stronger suction than other wearable pumps and when I use it. However, I am typically not able to get my full yield I normally get with other pumps (though that’s not uncommon for wearables). Though, I also think I respond better to this wearable pump than some others due to the silicone flanges, different modes, and good suction strength.
NOISE
This pump prides itself on how quiet it is. One of its biggest marketing tactics is that it is “less than 50dB when used and will not disturb a sleeping baby”. It isn’t as noisy as some of the other wearables I have used, but not super discrete either.
APP
no app, but it does have an LCD display on the pump motor (some of the other wearables in this post do not). It shows the battery life, pumping timer, current suction strength/level
BATTERY LIFE
The pump auto-shuts off at 30 minutes. Made for 130 minutes of pump time. Depending how long you pump; you can typically get 7-8 sessions out of this pump before needing another charge. It does take about 2.5 hours to fully charge.
Pros— comfortable silicone flanges, different modes to try, decent suction strength for a wearable, lower cost
Cons— NOT discrete at all, not a great battery life, leaks if not completely sealed around rim, not the most quiet option
MOMCOZY s9
Cost
$119.99
Size
The same size as the LM Imani collection cup or Momcozy S12 collection cup. The pump motor is a bit smaller than Imani, but not much. The whole setup is still bulky, but not incredibly heavy.
WHAT’S INCLUDED
Pump Motor * 2
Milk Collector (180ml) * 2
Silicone Flange (24 mm) * 2
Flange Insert: (17mm&19mm&21mm) * 2
Silicone Diaphragm * 2
Duckbill Valve * 4
Linker * 2
USB Cable * 2
HSA/FSA ELIGIBLE
Yes
HYGIENICS
This pump is a “closed system” so milk cannot get to motor; flanges made of food grade silicone
CLEANING
Per the Momcozy site, it’s preferred that these parts are handwashed in warm soapy water. The high temp of the dishwasher or any sterilizing bags may cause deformation of the parts.
HOW MUCH IT HOLDS
6oz / (120-180mL per collection cup)
Flange sizes
Includes 24mm flange, but 17mm, 19mm, 21mm inserts are included as well
Leaks/Ensuring a proper fit
Make sure the silicone flange is completely sealed around the rim to prevent leaks
Modes
Momcozy S9 has 2 modes (stim + expression) and 9 levels of suction within that
Pump Strength
(~280mmHG)— I felt like this pump was a strong wearable option— I didn’t have to go up too far on the suction strength! Usually stayed less than a 3-4 and got a great yield, similar to my Imani or Momcozy S12’s
Noise
This pump is ~45dB, pretty quiet
App
No app, does not have the pump timer on the pumps like the S12’s do
Battery Life
Takes about 2.5 hours to charge for about 8-9 pump sessions, auto shut off at 30 mins
Warranties
1 year warranty on pump motor (hub)
Pros— better battery life than s12 in my opinion, nice output for wearable, love the silicone flanges, lower cost
Cons— NOT discrete/very bulky, motors fell off easily, not as many options as s12 for modes
EUFY S1 PRO heated BREAST PUMP
Cost
$349.99
Size
This pump is a bit bigger than the elvie, but smaller than the momcozy/imani/willow go
WHAT’S INCLUDED
2 pumps with 24mm flanges
inserts of 17/19/21mm
2 magnetic charging cables
a chic charging case for portability
2 dust covers
a cleaning brush
HSA/FSA ELIGIBLE
Yes
HYGIENICS
This pump is a “closed system” pump, so milk cannot get to motor, uses BPA free silicone and heat flow technology to help with milk flow
It’s also heated— the flange piece touching your skin can heat up gently and help encourage milk flow— I loveee this feature!
CLEANING
per eufy support, top rack dishwasher safe for washable components
HOW MUCH IT HOLDS
6oz / (120-180mL per collection cup)
Flange sizes
Includes 24mm flange, but 17mm, 19mm, 21mm inserts are included as well
Leaks/Ensuring a proper fit
Make sure the silicone flange is completely sealed around the rim to prevent leaks, this pump is double sealed with lower reinforcement
Modes
Has 3 cycle speeds, 4 “rhythms”, 7 suction levels and 7 adjustable heat settings — very customizable, which is so nice! The gently heat can help increase milk flow and warm up between 95-105 degrees)— you can also set a timer for this to turn off at a certain point
“Max rhythm” — for moms who want max output
“Natural rhythm”— for close, comforting experience that mimics baby at the breast
“Standard rhythm”— similar to that of non-wearable breast pumps
“Gentle rhythm”— for moms with sensitive nipples
Pump Strength
(~300mmHG)— I felt like this pump was nice and strong for a wearable, I was very impressed with strength! I don’t feel the need to increase suction too much because it’s relatively strong
Noise
This pump is ~46dB, nice and quiet
App
This pump does come with an app called Eufy Baby, where you can track time, amount, analyze pumping patterns, timers, etc. It’s very detailed and easy to use!
Battery Life
Takes about 2 hours to charge for about 4-6 pump sessions
Warranties
1 year warranty on pump motor (hub), 3 months on parts
Pros— it’s HEATED (what?!) which can help with milk flow/comfort, has an awesome easy to use app where you can manage your pump individually on each side or sync to do the same things together, nice output and strength, different “rhythms”, charging case is elite, has quickly become one of my fave wearables!
Cons— cannot see if positioning nipple properly when placing on, lots of parts to clean, somewhat “heavier” compared to other pumps, no auto-shut off if full, don’t love the inserts- a little pinchy
MOTIF aura
Cost
$229
Size
Size is smaller, similar to the discreteness of the elvie pump— it’s SO LIGHT! Less than 1 lb! You
WHAT’S INCLUDED
2 Hands-Free Pumps
2 Diaphragms
2 Breast Shields (29mm)
3 Pairs of Silicone Inserts (21mm, 24mm, 28mm)
2 Valves
2 Bottles
2 Bottle caps, nipples and rings
2 Power adapter, DC5V, 2A
2 USB-C cables
HSA/FSA ELIGIBLE
Yes
HYGIENICS
This pump is a “closed system” pump, so milk cannot get to motor, their upgraded version has silicone flanges made with BPA free silicone
CLEANING
Per Motif’s website, they recommend only hand washing their parts as they can warp in the dishwasher— big bummer for me!
HOW MUCH IT HOLDS
4oz per side
Flange sizes
Includes 29mm flange, but 21mm, 24mm, 28mm inserts are included as well — in my opinion these sizes are rather larger than what’s typically needed
Leaks/Ensuring a proper fit
You’re not able to see your nipple when placing it on the breast, which can make it hard to get started. I do also wish they offered a better selection of flange size inserts for a proper fit— the sizes offered are much larger than typical (29mm is their “standard”?!). I didn’t experience too much leaking with these.
Modes
Has 2 modes (stimulation + expression) and 12 suction levels
Pump Strength
(~280mmHG)— I don’t feel that this pump is very strong
Noise
This pump is ~41dB, nice and quiet, one of the most discrete for sure!
App
This pump does come with an app you can download “Motif Aura App”
Battery Life
Battery lasts about 2 hours, not very long
Warranties
Includes a 2-year manufacturer’s warranty for the main pump, 12-month for the battery and a 90-day warranty for the components.
Pros— It’s very very discrete and lightweight, not tons of parts, small, quiet, app is nice,
Cons— not very strong, did not get great output consistently, cannot see anything (time/settings) unless you have app open, cannot see nipple alignment easily, very large options for flange sizes, cannot clean any parts in the dishwasher per website (I have), battery life is awful
ZOMEE fit
Cost
$249.99
Size
Larger than the motif aura + elvie, but smaller than the Willow Go, Imani, or Momcozy pumps
WHAT’S INCLUDED
Two (2) 25mm Breast Shields
Two (2) 21mm Breast Shield Inserts
Two (2) 17mm Breast Shield Inserts
Two (2) Pump Motors
Two (2) Breast Shield Bodies
Two (2) Diaphragms
Two (2) 180ml Collection Containers
Two (2) Collection Container Lids
Four (4) Duckbill Valves
Two (2) Type-C Charging Cable
Two (2) Bra Adjusters
One (1) Collection Container Brush
One (1) English + Spanish Manual
One (1) Nipple Ruler + Guide
Two (2) Year Motor Warranty
Ninety (90) Day Parts Warranty
HSA/FSA ELIGIBLE
Yes
HYGIENICS
This pump is a “closed system” pump, so milk cannot get to motor, has silicone flanges made with BPA free silicone
CLEANING
Per Zomee website, you can wash parts and pieces in the dishwasher or hand wash — hard to clean the bottles due to the small opening
HOW MUCH IT HOLDS
6oz per side, can buy 7oz containers separately if needed
Flange sizes
Includes 25mm flange, but 17mm, 21mm inserts are included as well
Leaks/Ensuring a proper fit
You’re not able to see your nipple when placing it on the breast, which can make it hard to get started. Had an occasional leak with these if moving around.
Modes
Has 2 modes and 9 settings for suction
Pump Strength
260mmHg — def not the strongest option, but did a decent job for a wearable! Would def keep to an “as needed” in addition to your primary pump
Noise
This pump is ~48dB, pretty quiet
App
This pump does not have an app
Battery Life
About 2 hours of pump time, charges somewhat quickly
Warranties
2 year
Pros— decent suction strength and output for a wearable, not super bulky (not the biggest, not the smallest), comfortable fit
Cons— pump parts are hard to find/replace at times, no auto shut off, hard to clean the bottles due to small opening and cannot twist off the milk chamber without first removing your flange, louder than expected, some issues with leaking when moving
COMPARING THE WEARABLES side-by-side:
TOP ROW: WillowGo | Elvie | Imani — you can see the size differences between the Willow Go, Elvie, and Imani
MIDDLE ROW: Momcozy S12 | Imani | Momcozy S9— you can see that these pumps are all almost identical cups; even the Imani + S9 pumps are almost identical
BOTTOM ROW: Elvie next to Eufy | Zomee Fit | Motif Aura — you can see the Eufy + Zomee Fit pumps are much bulkier than the Elvie, the Motif Aura is similar size
It’s amazing how easy these pumps (among many others) can make pumping on the go, completely hands-free a breeze. They’re all amazing in that aspect! But let’s look at how different some aspects of them really are!
SIZES
As you scroll down, you’ll see some different groups of pumps next to eachother for easy size comparisons.
1st group: Imani, Willow Go, Elvie— I grouped these together because they’re all structured completely different. The Imani has a top pump and large collection cup, the Willow Go has its motor on the backside of the pump and collection cup on front, the Elvie has a pump on top and collection chamber smaller on the bottom.
2nd group: Elvie, Eufy, Motif Aura, Zomee Fit— I grouped these together because they’re structured similarly with the pump motor on top and the smaller collection chamber on the bottom
3rd group: Imani, Momcozy S9, Momcozy S12— I grouped these together because they’re all almost identical. They use the same collection cup— to the point where I can actually put the imani pump motor on the Momcozy collection cup and it works just the same. The Imani and S9 motors are pretty much identical.
Pictured here left to right: Imani, Willow Go, Elvie
The Imani protrudes the furthest since its collection cup boasts a 7oz capacity versus 5oz for the other 2. It also sits the tallest because the small pump motor pops right on top of the larger collection cup.
The Willow Go is a more cumbersome wearable pump. It’s a decent pump and gets the job done well, but that doesn’t come without heaviness (esp as it fills with milk in an already-heavy pump) and bulkiness (as it still protrudes outward more than the elvie).
The Elvie was definitely the thinnest/most discrete and lightweight overall. It conforms to the breast well and isn’t super visible. I think it helps that the collection chamber was on the bottom under the flange, versus in front of the flange.
The motors (pictured below) show that the Willow is biggest overall (but thinnest), and the Imani is the tiniest!
Overall— if you’re looking for lightweight— I’d look to the Imani, Momcozy or Elvie. If you’re looking for small and discrete, I’d look to the Elvie. The Imani or Momcozy isn’t heavy, but it is bulky.
Pictured below from left to right: (Willow Go, Elvie Pump, Imani i2)
The Eufy, Motif Aura, and Zomee Fit are similar in structure and size overall in comparison to the Momcozy, WillowGo, or Imani. I paired these together to show you the overall size difference since the pumps, themselves, are setup relatively similar.
The Eufy is larger than the Elvie, it sticks out further and is just a bit bulkier overall
The Motif Aura is similar in size to the Elvie, which is the most discrete pump. The Motif Aura also is incredibly lightweight, even moreso than the Elvie
The Zomee Fit is much larger and bulkier than the Elvie
PICTURED BELOW: Eufy versus Elvie | Motif versus Elvie | Zomee versus Elvie
The imani and Momcozy pumps are incredibly similar. Pretty much the same collection cups and the S9 and Imani have almost identical motors as well.
There really isn’t too much that separates these pumps in sizes. The Momcozy S12 motor is a tad smaller and different shaped than the Imani and S9. I think that they were possibly manufactured at the same place because you can literally put the Imani pump motor on the S9 cups (and vice versa) and it’ll work just as normal (you can see this in PHOTO 1 BELOW).
COMFORT
In this aspect, I believe it depends what you’re looking for. No one pump is the right answer for everyone as we all have different preferences.
Elvie, Motif, and Zomee have gentler suction, which may lead to more comfort for some women, esp if nipples are sensitive.
The Eufy pump is a silicone flange and heated which is also relaxing and comfortable
The Imani and Momcozy pumps have silicone flanges, which provide so much comfort, esp for elastic nipples
By the way— the purple bra above is one of my FAVORITES for the wearables. It’s supportive and comfortable with wide straps for extra support and it’s under $30!! SHOP IT HERE
FUNCTIONALITY
Suction/Function
As far as suction strength, I personally get the most out of the Imani, Momcozy S9, and Eufy. The imani boasts a higher suction power at ~300mmHG, is more comfortable for me with the silicone flange, which I think allows me more output. This may differ from person to person! For example, if you are a bit more sensitive to a stronger suction (which might make you tense up more), it can lead to less output when utilizing a stronger suction or pump versus a gentler pump. Second place would be the Momcozy or Eufy, then WillowGo, then Zomee Fit, then Elvie, and last Motif Aura as far as suction strength.
Cleaning
I am surprised to say that even though the Willow Go has the most pieces, it’s the easiest to clean. The pieces are not small (even the duckbill valve is large!), which makes cleaning a breeze— and that’s important when you’re pumping and caring for a baby! The Imani and Momcozy S9 and S12 aren’t too difficult as far as cleaning goes since the pieces pull apart easily, there aren’t many of them, and the collection cup itself is large. The Eufy isn’t too bad, as the flange still detaches from the collection cup as a whole, so you’re able to clean it easily. The Elvie, Zomee fit, and Motif Aura is a little more tedious to clean with the small duckbill and the small neck into the collection chamber.
MY personal experience WITH EACH PUMP
Scroll to the very bottom for my full ratings on each category!
Elvie
I respond okay to the Elvie, but it is absolutely a gentler suction that may not be very effective for some women. I do have to use the highest suction strength for effectiveness. After my third baby, I actually pumped with the OG Willow Gen 1 and the Elvie (one on each breast) for about a month to see what worked better for me. When comparing those 2, the Elvie was more effective for me even though it had a gentler suction. I did not get my typical yield from the Elvie, though, and there were a few times of using it where I felt full even after use. I did also need to use my Beaugen pump cushions as the flange tunnel is a bit short and hard. For women like myself with elastic nips, this can be a bit painful and a pump cushion may be a safe bet with this pump!
Willow Go
I pumped on and off with this pump for about 3+ months before “reviewing” it. It works well, but still left me feeling full a few times. I typically had milk left in the breast after using and felt like I didn’t get close to my “full typical yield”. I really wanted to love this pump, but I felt a bit disappointed that it didn’t seem to be much of an “upgrade” from the OG Willow Pump. The size (bulkiness) and weight (heaviness) were still extreme! When milk was filling the chamber, I could feel the pump sliding down in my bra quite often. I also noticed a bit of leaking with movement like getting things out of my cabinets. I thought this was odd, as the name is “Willow Go”, but I felt like I couldn’t move around too much, or it would leak. I do love how easy it is to clean, though.
Imani i2
I really love this pump in general, and it’s my personal favorite of the wearable pumps alongside the Eufy. However, there are 2 big cons for me: leaks easily, not dishwasher safe. With 5 kids, washing everything by hand gets so tedious, so knowing I have to do that makes me sometimes dread using it! BUT, it’s still 100% the one I reach for most out of my wearables because it is the most comfortable and most effective for me. The leaking is incredibly frustrating. I do have to be super vigilant to ensure the rim is sealed with the silicone flange before placing the cup on my breasts. Along with that, I still feel it’s harder to move around because the silicone almost “sticks” to your skin. Therefore, if you move much, it can break the seal and leak. This pump is the strongest and most effective for me, yet I don’t have to use the highest setting for effectiveness. That’s pretty great!
Momcozy S9
This pump is similar to the Imani, so I do like it. It has a great suction strength and way more levels to find your personal settings. I love having options! I did not need to go to the highest setting for effectiveness. I also love that just like the Imani, it has a silicone flange, which is way more comfortable for me. The pump was extremely quiet like the Elvie (maybe even a bit softer!). It’s bulky, but not heavy.
MOMcozy s12
This pump is similar to the Momcozy S9 and the Imani as far as structure and comfort. I do feel the suction isn’t as great as the S9 for some reason.
eufy heated
I really love this pump. It’s newer on the market, so I was excited to test out with my fifth baby and it did not disappoint! I feel like it’s a pretty sophisticated pump at a middle-of-the-road price point (not $500, but not quite $100 either). The heated feature is honestly amazing for my milk flow. The settings are great, you can control everything and optimize it to make it work for you! The app is so nice. The pump, itself, is nice and comfortable with a gentle silicone flange. I also LOVE the charging case amenity. The battery life lasts and it’s so easy to charge on the go, which is HUGE! This has quickly become a favorite for me alongside my Imani. I typically get close to my regular yield!
motif aura
I was sadly pretty disappointed in this pump as I love the Motif Luna! I felt like it leaked easily, didn’t have great suction strength, and just seemed like it was made very inexpensively. It did okay, but there are better options in my opinion. Even when pumping a full 30 mins on the highest suction, I was not able to get my regular output or close. However, if you are looking for discrete and lightweight, this is your girl! It’s lighter than the Elvie and just about the same size!
zomee fit
This pump is a nice option if you like gentler suction. I usually had to pump on the highest setting to get close to my regular yield and def had to pump a full 30 mins for my full yield (which I could get in 10-15 with my Pumpables GA). I do like the setting options and the fit of the pump. It’s a nice pump for the price point!
MY OWN LITTLE “experiment”
I wanted to share a little more about why wearables typically shouldn’t be used as a primary pump for most women. In knowing this, and occasionally still feeling full after pumping sessions with wearables, I decided to do a little (anecdotal) “experiment”. You can read on if that interests you, but it’s not necessary!
I have a lot of experience with pumps, functionality, how they work better or worse, etc, so I wanted to trial a few different things. In knowing that wearables typically aren’t as effective at breast emptying as regular pumps/flanges, I experimented here and there to see how much milk I was truly leaving in the breast at the end of my typical 20 minute pumping session. Please remember, this is all anecdotal and my experience, not stating you need to specifically pump after using a wearable— I was just curious! This is also not an “evidence-based” method, just some experimenting and trial + error.
I know that with my Spectra pump and some of my favorite portable pumps (which I will post about soon!) empty me well (meaning they don’t leave milk in the breast after I pump with them). I know my typical output in a 20 minute pumping session with my Spectra. I know that I usually “empty” my breasts (breasts are never truly “empty”), meaning no more milk flows around 12 minutes into a pump sesh for me. At this point, I switch back to stimulation mode to try and initiate another letdown of milk. Usually (not always!) after pumping in stimulation mode for 2-5 minutes I will get a second letdown and switch back to expression mode to collect that milk. By this time, I usually hit around 15-17 minutes into my pump sesh when that second letdown starts. The flow usually doesn’t last long, and my pumping session is over by 20-21 minutes with no more milk flowing and my full typical “yield”.
I also have take into consideration my job, where I have pumped many times— I don’t get long pumping breaks. I can’t pump for upward of 20-30 minutes. As a floor nurse, I’ve barely gotten to pump for 5-10 minutes sometimes, let alone 30. Some women need longer to empty their breasts than others!
So here’s what happened.. I pumped with the wearable pumps for my typical 20 minute session and got less than I typically would—with the Willow Go and Elvie especially (even with initiating that second letdown!). I thought “okay, things change day to day and feeding to feeding, but this is odd!”. Every time I used them, this kept happening. I felt like my breasts weren’t as soft as they typically are post-pump and my output was less than “usual” for me. I then decided to pump with one of my trusty pumps (the ones I know will empty me well, like my Spectra) after pumping with these pumps (just for experimental purposes/do not necessarily recommend for others!) for about 10 minutes to see if there was more milk left over. I expect some milk, as breasts are never truly empty. Here were the combined results:
Elvie— 2.25oz post pump with Spectra
WillowGo— 3oz post pump with Spectra
Imani i2— 0.75oz post pump with Spectra
MomCozy S12— 1oz post pump with Spectra
Eufy— 0.5oz post pump with Spectra
Motif Aura— 2.5oz post pump with Spectra
Zomee Fit— 2oz post pump with Spectra
Though these results can vary person to person and based on time of day/other factors, I did find this interesting. The WillowGo left almost 3oz that would have been left sitting in my breasts until the next session. Why does this matter? When this is done consistently, this signals your body that those 3oz really aren’t needed because they aren’t being removed! This would lessen or decrease supply over time.
SO….
I thought to myself “maybe I just need more time to empty with these pumps”— I decided I would try pumping with them for 30 minutes instead of my typical 20. I then pumped with my trusty Spectra pump afterwards to see if this made a difference. Though the results were better, they weren’t much better in the case of the WillowGo specifically. Here were those results:
Elvie— 1.25oz post 30 min pump with Spectra
WillowGo—2oz post 30 min pump with Spectra
Imani i2— 0.75oz post 30 min pump with Spectra
Momcozy S12— 1oz post 30 min pump with Spectra
Eufy— 0.25oz post 30 min pump with Spectra
Motif Aura— 2oz post 30 min pump with Spectra
Zomee Fit— 1.5oz post 30 min pump with Spectra
So, maybe this was just me! It also may not really matter to some women and that’s okay too! And this isn’t a typical experiment that others need to do, by any means— nor is it foolproof as there are SO many variables. I was simply just curious and thought I’d share. Pumping this much isn’t something I typically do or feel is necessary- I was truly just trialing things to see what these pumps did or didn’t do for me in hopes that it helps aid in pump search or just intensify your curiosity too! I know a few mamas who had a similar experience in my community, and some who absolutely love the pumps that may not be my favorite! Everyone is different! I am just trying to dive deeper into things and hope it’s helpful in some regard.
MY ratings
best strength:
Imani, momcozy + eufy, zomee fit, willowgo, elvie, motif aura
most comfortable:
eufy, imani, momcozy, zomee fit, elvie, willowgo, motif aura
Longest charge:
imani + Elvie, willowgo, momcozy, eufy, motif aura, zomee fit
easiest to clean:
willowgo, momcozy + imani, eufy, motif aura, zomee fit, elvie
least noticeable:
motif aura, elvie, eufy, zomee fit, momcozy + imani, willowgo
least noisy:
momcozy s12, elvie, motif aura, zomee fit, eufy, willowgo, momcozy s9 + imani
best price:
imani, momcozy, motif aura, zomee fit, eufy, willowgo, elvie
I hope this post has been helpful in some way! I’d love to know which wearable pump you love, or which one you feel may best suit you!
XX Karrie
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