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, Gray, 2Pack
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Availability:
In Stock.
Arrives
Tuesday, Oct 20
Color: Gray
Size: 2Pack
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 Baby Scale MomMed Pet Scale MomMed Portable Pet Scale Ovulation&Pregnancy Tests
Package Dimensions : 10.28 x 6.77 x 4.49 inches; 8 ounces
Date First Available : June 12, 2025
Manufacturer : MOMMED
Best Sellers Rank: #4,327 in Baby (See Top 100 in Baby) #51 in Electric Breast Pumps
#51 in Electric Breast Pumps:
Customer Reviews: 4.1 4.1 out of 5 stars (3,177)
Brand Name: MOMMED
Number of Items: 1
Model Name: Wearable Breast Pump (Model S21)
Unit Count: 1 Count
Manufacturer: MOMMED
Manufacturer Part Number: Wearable Breast Pump (Model S21)
Additional Features: Portable
Item Weight: 8 ounces
Item Dimensions L x W x H: 4.13"L x 2.55"W x 4.52"H
Capacity: 6.09 ounces
Size: 2Pack
Material Type: Silicone
Color: Gray
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Oct 20
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: Blissful Green
These helped me during my pumping journey with my first baby. I was using another pump that was painful and not efficient, these were half the price and worked so much better! I would repurchase.
Reviewed in the United States on July 29, 2026 by Becca
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 by A&J
Size: 2Pack
Color: Pink
🪠 Suction is great. I tend to have a higher pain tolerance now that I am 7 months postpartum, so as far as sensitivity goes, you can range from having super sensitive nipples to barely any and this pump can flex with you. 🧼 Cleaning is a breeze. This brand is thoughtful enough to give you a little sponge that perfectly cleans the smaller crevices that a typical bottle brush wouldn't be able to reach. That alone earned a star in my mind to this review. ⚙️ Flexible settings are a must in my eyes, and this pump brings it. The various modes are great if you need extra stimulation to trigger a letdown. Each unit works independently so if one side can handle more power you have full autonomy. 🫗 Convenience with pouring is accessible. The poor spout and build of this pump makes bagging your milk a breeze. You don't have to worry about excess missing the mark. The only place that you may struggle with, is if you have a little bit of the milk trapped at the center. You can avoid missing that milk by simply making sure that your poor spout has your flange facing to the sky. 🔋 Long-lasting battery is important, especially if you are an exclusive pumper like myself. I was able to successfully get three pumps in when the units were fully charged using suction mode levels 5 through 7. 🚫 Con: The cups do not come with a cover to cover the interior of the flange. Instead it comes with a material bag. Upon first use, I didn't think to wash the bags and the soft material rubbed off on the outer edge of the flange. 🚫 Con: You cannot leave your freshly pumped milk standing up unattended for an extended period of time. I stepped away after pumping for maybe 15 minutes at most and the bottom of the cup seal had started to let milk leak out. Thankfully, I am an oversupplier but for those who are just enoughers, it would have been a tough loss.
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Reviewed in the United States on February 10, 2024 by Amber and Zack
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 by Wendy Jefferson
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
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
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: Blissful Green
I’ve been using this pump for 3 months now as my main and only pump, the suction works well for me, the parts are easy to clean and maintain - you do need to buy replacement parts to ensure the suction stays good and replace them as recommended. The batteries last decent, I can do 4 30 minute pump sessions before I need to charge them and they haven’t lost battery life so far. Good they come with different flange sizes to ensure the right fit, it took a couple of sessions to figure out which size was best as it seemed i was a bit in between 2 sizes. Output has been good for me I respond well to this pump.
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Reviewed in the United States on June 28, 2026 by Shani Bennett