MomMed Wearable Breast Pump (Model S21) – Double Electric Hands-Free Breast Pump, Leak-Proof Design, 3 Modes (Stimulation, Expression, Auto) & 12 Vacuum Levels, Portable and Quiet
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Availability:
In Stock.
Arrives
Monday, Jul 27
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Size: 2Pack
Color: Pink
Features
- 2 x Upgraded Wearable Breast Pump- The MomMed Wearable Breast Pump (Model S21) features 3 modes (Stimulation, Expression, Auto) and 12 vacuum levels to mimic natural baby sucking. Customize your pumping for efficient, comfortable, and pain-free milk expression
- Leak-Proof Design- The upgraded MomMed double electric pump features a key improvement in its structure: a backflow prevention membrane that physically separates breast milk from the vacuum system. This ensures safer operation and reduces the risk of leakage. Measuring correctly and choosing the right flange size help breast milk flow smoothly
- More Invisible & Lightweight The portable breast pump with ergonomic semi-circular design fits snugly in your bra for discreet pumping. Weighing under a pound and fully wireless, you can pump anytimewhile feeding, working, driving, or on the go
- Convenient & Quiet- The hands free breast pump features an LED screen and physical buttons for easy, durable operation. Low noise (<45 dB) ensures discreet pumping without disturbing your baby or drawing attention in public
- Wearable pump with combined Milk Collector and Flange- MomMed wearable breast pumps include 2 x 24mm Silicone Breast Shields, 6 x Flange Inserts (17mm, 19mm, and 21mm, each in a pair), 1 Nipple Ruler, 6 Duckbill Valves, 4 Silicone Diaphragms, 2 Bra Adjustment Buckles, 2 Storage Bags, 2 Cleaning Brushes, 2 Type-C Charging Cables, 1 Instruction Manual, and 1 Breastfeeding Guide
Description
Wearable Breast Pump Wearable Breast Pump Breastmilk Storage Bags MomMed Breast Pump Case MomMed Baby Scale MomMed Portable Pet Scale Ovulation&Pregnancy Tests Visit the Store
Product Dimensions : 5.51 x 7.08 x 6.29 inches; 1.92 Pounds
Item model number : Wearable Breast Pumps (Model S21)
Date First Available : July 6, 2022
Manufacturer : MOMMED
Best Sellers Rank: #3,379 in Baby (See Top 100 in Baby) #41 in Electric Breast Pumps
#41 in Electric Breast Pumps:
Customer Reviews: 4.1 4.1 out of 5 stars (3,076)
Brand Name: MOMMED
Included Components: Bottle, Breast Flange, Valve
Model Name: S21
Manufacturer: MOMMED
Model Number: Wearable Breast Pumps (Model S21)
Manufacturer Part Number: S21-01-Gray-White
Unit Count: 1 Count
Operation Mode: Electric
Additional Features: Portable
Power Source: Corded Electric
Noise Level: 45 Decibels
Item Weight: 1.9 Pounds
Item Dimensions L x W x H: 7.08"L x 3.14"W x 5.7"H
Capacity: 180 ml
Size: 2Pack
Material Type: Silicone
Is the item dishwasher safe?: No
Color: Pink
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jul 27
Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 2Pack
Color: Pink
I am in looooove. I’ve had it for four months now and everyone told me that I’d still need a “primary” pump like the spectra but I was exclusively pumping and hated my spectra. These mommeds made life bearable again. I got just as good output with them (pro tip: I love the legendairy pumping spray), they were recommended by my lactation consultant, not crazy expensive like other pumps, and don’t hurt like my spectra did. If I am wearing a sweatshirt I’ll even leave my car/house briefly with them (though I prefer pumping in privacy). They fit in my nursing bras well, stay put, and I’ve literally never had a single problem with leaking like my friends do with their other brands of wearable pumps. I recommend these pumps to all my friends and my friends who have gotten them love their pumps, too. My friend sent me a text that said, “The Mommed pumps? LIFE-CHANGING.” And it’s true. She took hers on an airplane and said they were fabulous. Because who the heck wants to bring a massive Spectra machine on a plane and become a cow being milked for 20 minutes? No one. I’ll say they definitely aren’t silent, but they’re not loud either. They come with so many extras - little bags for the pumps, extra duckbills, extra back flow protectors, inserts to make the flange the correct size for your nipple, and even a cute little pumping guide. These helped me go from not pumping enough for my little guy to even having a bit of an oversupply and freezer storage! They didn’t have the light up ones when I bought mine, but I feel like I would love the lights to let me know how full they are/help me when I’m pumping at night. But trust me when I say: when you get these, you can put your spectra up on a nice, high shelf and never touch it again. I’m obsessed.
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Reviewed in the United States on January 27, 2026 Reviewed in the United States on January 27, 2026 by A&J
Size: 2Pack
Color: Pink
I am so sad that I didn’t try Mommed pumps before now. These pumps are so good. I wanted the green ones but they don’t have them on Amazon 😢😭 the suction strength is very good it’s strong but gentle. These pumps are perfectly sized and VERY affective they are now my main pumps. I use them all day every day every 2 hours. They are super quiet. They are small but still have a 6oz capacity yet will hold more than 6 ozs. I love that the buttons are right to the point and they are easy to use. the power button doubles as the mode button as well. I don’t use the auto feature but stimulation and expression work very well. I’m so glad these pumps work so well for me I recently bought one of the competitor pumps and paid 2 times the price I paid for these and it didn’t even work for me. I was so upset!! These pumps are fantastic! Great product so happy I chose these over the others I was looking at. Great job Mommed these are perfect!!! They have 12 levels of stimulation and 12 levels of of expression.The auto feature also has 12 levels but it’s not a 2 phase like I thought. level 1-6 are stimulation and 7-12 are expression every 20 seconds the pump will level up by its self it does that from level 1 to level 9 by its self u have to manually switch after level 9 to 10-12. I love these pumps they are extremely light weight very effective and easy to use. 1000/10 recommend
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Reviewed in the United States on September 12, 2025 Reviewed in the United States on September 12, 2025 by Wendy Jefferson
This is a great pump and does a wonderful job expressing my milk. I'm a second time mom and an over-producer. My first time around I gave birth to twins and used the Spectra pump and was able to breastfeed until I chose to stop just after 1 year. This time around I had a singleton and my boobs still produce a ton of milk, but I've returned to work earlier (first time I went back for half days at 3 months until over 1 year, this time I'm back full time at 3 months) and I wanted to find something that didn't necessarily require me to leave my desk 3 times a day. Pros: Great suction - I get just as much (sometimes more!) milk with this pump as I do with my lansinoh pump. 3-5 ounces per breast each time. Relatively quiet! I mean you can definitely hear it, but I can turn on my little desk space heater to drown it out in my otherwise silent shared office. Fits inside my nursing bras. Mostly easy to clean - kind of hard to get in a couple of the little corners but not a huge deal to me, I do use a 21mm flange insert so I have 5 parts from each pump to clean Cons: Charging - while they charge up pretty quickly, there is no way to tell what the current charge is while the pump is on, only when charging. It would be nice to have a display to show remaining battery bc several times it's happened that one will just die in the middle of a pump session - very frustrating. Also the motors look exactly the same so you dont know which one you just charged! I ended up using a sharpie to write 'A' on one and 'B' on the other so I could kind of keep track of which one needed charging. Please make the battery status display a thing!! Memory function - it's nice that the pump remembers the suction level you use on each setting, but I wish it didn't start up on whichever mode it ended on. Sometimes I forget to switch from "expression" to "stimulation" at the end of a session so the next time I power it on it will start up on a strong expression mode which is a shock and uncomfortable. The way around it is to always switch back to stimulate mode before turning off, but would be much more user friendly to just make that the automatic starting point each time you power it on. Somewhat tricky to position - just the design of the pump makes it so you can't see your nipples inside the flange so you can't tell if they're positioned properly (for instance to make sure they won't rub the sides or aren't being sucked too far into the flange), not sure if there's a fix for it, just a tricky thing to get right. Looks a little silly - I am small chested (A cup) and wearing this makes me look a little ridiculous, as if I have DDs lol while it doesn't look COMPLETELY unnatural, anyone that knows me knows my boobs are that big lmao All in all, this is a great pump and has become my main pump. I actually get upset if I forget it and have to use my hospital grade pump. It does just as good a job as my lansinoh and is so worth the money, just could use a few tweaks for user friendliness! Photos show my 13 minute morning pump session. BF baby at 6:45 and then pump at work at 10:15.
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Reviewed in the United States on March 26, 2024 Reviewed in the United States on March 26, 2024 by Emily Taylor
Size: 2Pack
Color: Pink
I was skeptical at first because it was only $70-80 something dollars, but I figured what do I have to lose at that price? I was so tired of the tubing catching on everything and having to have a pumping bra on, and having to tote the pump around when I needed to do something while hooked up to my spectra. My first impression wasn’t great because I didn’t understand the pump settings and because it was uncomfortable and hurt. I tried using the inserts it came with and I quickly realized that wasn’t going to work. I have elastic nipples and so the flanges it came with were way too big. I use a size 13 flange with my spectra, so I ended up getting that size insert and it was a millions times better. Even more comfortable than my spectra. Also I finally figured out what pump settings work for me, which is about levels 3-5 alternating between stimulation and expression. I figured out with these I don’t need a super high suction to get a good output. Sometimes I will start out with the auto mode just because it starts out super low and increases gradually and gets my body used to it so it isn’t such a jolting feeling. Then after about 5 minutes I’ll switch to the manual modes. Also I have always heard you can’t use a portable as your main pump. For me that has proven false with these pumps. I am getting for sure the same, but most of the time more than what I was getting with my spectra. It also makes power pumps more bearable because you aren’t fighting with all the normal pump stuff. As far as ease to clean I find this is much better than my mom cozy portables. With my flange inserts it’s 5 pieces but they are easy to put together and pull apart, and it comes with a sponge that fits perfectly to get all the nook and crannies clean. I don’t typically write reviews but I did for this because I want others to know about this pump, especially the moms who are about to give up on breast feeding because the standard pumps make it feel so much harder than it has to be. With these, I have them on and can do dishes, vacuum, & drive. As long as you don’t have to bend over (because the milk will spill out the top) you can pretty much do it and it makes it feel less suffocating. Also if you think about it, it’s only the price of maybe 2-3 cans of formula, so if they work for you it’s definitely worth the price and will save you money in the long term.
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Reviewed in the United States on February 24, 2026 by Jaclynn Hassell
Size: 2Pack
Color: Blissful Green
The pumps worked very well at first. So well that I retired my Spectra when I was using MomMed. After daily consistent use for three months, one of the pumps gave out and was no longer able to perform like it used to. Because the company claimed to offer lifetime warranty, I reached out to them for assistance with replacing it. UNREASONABLE and ABSOLUTELY INAPPROPRIATE experience with MomMed customer service: If I could give them negative 10 stars, I would. I sent an email to MomMed asking for assistance with replacing the pump that stopped working. The customer service rep who assisted me (Joy), tried to blame Amazon stating that "violent transportation" probably damaged the product (even though the pumps and package arrived in perfect condition and worked fine for the first three months). Her first request was for me to provide her a video of the the pump malfunctioning. As requested, I provided a short video of the pumps on my counter that showed one side full of milk and the other with barely anything. The video made it very clear that one pump was no longer operating like it should. She responded and made a second request, asking if I had record of how much breast milk I typically produce when I pump, so that she could compare. As requested, I provided a photo of what I produced using my Spectra pumps and explained that I was able to pump the same amount using MomMed until it stopped working. She then responded and made a third request, asking me to provide a 20 minute video of myself pumping so that she could compare the amount of milk I produce and stated that I am not allowed to edit the video. I explained that I already provided a video of what I produced with MomMed and then a photo of what I produced using Spectra pumps. Which she clearly stated "photos or videos are welcomed". The video and photo I provided showed a very clear comparison between the two brands. She then let me know that since the video and photo I provided were taken after I had finished pumping, it wasn't enough evidence for them to determine if the pumps are not repairable and needed me to provide a 20 minute video of me pumping without edits instead. First of all, that's the dumbest and most outrageous thing I've ever heard. How on earth would anyone know if the pumps are not repairable from a video of me pumping. Second of all, what an invasive and outrageous ask, to ask women to provide 20 minute videos of themselves pumping to god knows where. I let her know that that was an extremely invasive ask and that I'm not comfortable recording or sharing that with anyone. I also let her know that I'd be leaving a negative review about my experience. She only offered to replace the pumps AFTER my comment about leaving a negative review. It was an extremely frustrating process and I ended up going through Amazon for a replacement instead. They basically market that they offer Lifetime warranty just to make themselves look good, but then make the process so difficult that no one is actually able to get a replacement. I also saw that another woman left a review with a very similar experience as well, so it seems like this is just how they run their business unfortunately.
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Reviewed in the United States on April 18, 2023 by ddduong
****2nd Update**** After I updated my review, I finally got through to Amazon customer service via chat. They refunded me the purchase price to a gift card & I purchased a new pair in pink. ----- ***1st Update*** I've now had the set for a month. Unfortunately one of the LED screens is going out and I'm not sure why. I cannot read the options or time on the screen. I've been trying to contact the company and Amazon for a possible replacement and it has been near impossible. It's all automated and just keeps sending me to trouble shoot guides when that's not what I need. How do I contact this company?!?! ----- I got the MomMed S21 wearables and have used them for 3 days and have loved them! I own a horse farm and can wear these doing chores, dishes, driving... My stats are (lol): 5 weeks postpartum. 38DDD/E Not an overproducer. Exclusively pump. 3-4 hours between pumps. 30 minute sessions. My other pumps are a Motif Luna standard pump & Medela and Lansinoh hand pumps. Each pump with those options I'd get roughly 5 to 6 ounces total using 19mm flanges. I have gotten more each pump session with these wearables. This photo is after my noon session, where I'd average 5oz total. I got 10oz! I've actually had to use creams and less suction with these because it's too intense for me. I typically do 5 minutes massage/stimulate, 10 minutes suction/expression and repeat. The cups max out at 6oz so if you pump more than that in a session watch closely because they'll overflow back at the flange insert. The noise level, I can hear them if I'm in a quiet room. But you can talk over them & you don't notice them if you're grocery shopping around people or something. The charge on these also last 2 full days (roughly 12 pumps) for me. I looked at the MomCozys, Lansinohs and Elvies for wearables. I chose these for the cost. I couldn't really justify spending $200-300. I got these on sale for $65 with coupons. Easily worth the investment! Plus they come with all kinds of extras; duck bills, membranes, flange inserts, extension straps for nursing bras, nipple rulers and 2 nice velvet bags. I hope they last, but so far I'm super happy with the purchase!
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Reviewed in the United States on April 13, 2024 Reviewed in the United States on April 13, 2024 by Sarah S.
UPDATE: replacing the duckbills and diaphragms fixed the light suction issue. NOW the motor itself is not working, therefor there is no suction at all. It will turn on and click but no suction. EXTREMELY frustrated to have bought the pumps, brand new parts and now it’s not working at all. And again this isn’t my primary pump!! I only use it when running errands and once in the middle of the night. I’d like to try new motors but I’m not sure how to get ahold of the seller as customer service is not easy to find, or at least that I have found. Check guess this pump when looking at choices. UPDATE : As a first time mom I did not realize how soon I may have to replace parts on pumps. That being said I figured out my duckbills had little tears in them and this was causing the lack of suction. So if you didn’t know like me, here’s your sign to check your duckbills!! I replaced those and the pump is back to normal😅🤪 I am about 8 weeks PP and I didn’t start using this pump until 3 weeks in, so I’ve been using it for around 5 weeks. The pump started out great. I felt the suction was great and comfortable. I could use this pump or my wall pump and thought they would both empty me equally. I loved how discreet this pump is, it’s not too loud, and how it would empty me when I needed to keep moving at home or when I had to go out. Now about 5 weeks into using it the suction has dramatically decreased. It has decreased to a point where I have only use it when I am full and know even the light suction will pull out some milk. I like to pump after nursing to make sure I am empty, but I can’t use these pumps now to empty because of the lack of suction. I would wear it for 20 minutes and next to nothing would come out, but then I’d use my wall pump and get nearly 3 ounces out. And even after pumping when I am full, I will pump for at least 30 minutes and not feel empty. Which again I have tested to see if I actually am empty and will pump with my wall pump and will get ounces out after trying to use this one. I am not sure if something with the pump can be replaced to fix this, but I am very frustrated it went downhill so quickly. All baby and PP items l, especially breastfeeding items are so spendy and add up fast, so I am very disappointed to have spent the money on this for it to not work after such a short amount of time. Especially considering it is not my primary pump. Great pump at first, or as long as it keeps it’s suction unlike mine…
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Reviewed in the United States on November 15, 2023 by Emily
Size: 2Pack
Color: Pink
This breast pump arrived yesterday and I am over the moon! I have another breast pump that is a plug-in and wanted a hands-free wearable breast pump for when I need to do things around the house. I researched several different brands and decided to give this brand a try. And I am so glad that I did! I was very skeptical because of the price, thinking that this would not be a good pump considering how affordable it is. But I am absolutely amazed! Has great section and shows the time in which it shuts off at 30 minutes which is how long I pump for anyways. Comes with everything that you need including a nipple sizer, instructions, different size nipple flanges, storage bags for the pump, and two chargeable cords. The pumps are very easily explained even without the instructions. Everything comes apart super easy for cleaning. I absolutely recommend this brand and if anything were to happen, I would definitely re-buy this brand again! Five stars all around!
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Reviewed in the United States on October 29, 2025 Reviewed in the United States on October 29, 2025 by Lacey