MomMed S21 Breast Pump-Gentle Expression, Effortless Emptying

$94.18 $132.99

Estimated delivery between October 01 and October 03.

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Gentle Expression, Effortless Emptying
Pump Weight: 230g
Product Dimensions: 122 mm x 110 mm x 68 mm
3 Modes: Stimulation/Expression/Auto Mode for customized use
12 Levels: Adjustable intensity for precise comfort
Suction Strength: Hospital-grade, up to -280mmHg per side
Auto Shut-off Time: 30 minutes
Usage Time: 150 mins / 5-6 sessions
Charge Time: About 2 hours (compatible with 5V 1A adapter)
Noise Level: Under 45dB
Display: LED screen
Capacity: 6oz leak-resistant cups
Cleaning: 4 parts, dishwasher safe (under 90°C/194°F)
Certification: Mom tested & FDA approved

We have such a guide exclusively to solve this problem of moms, you can check the guide on how to measure your flange size.

2 MomMed S21 Pumps
2 USB Cables (Type-C)
2 Milk Containers (6 oz)
2 Silicone Flanges (24 mm)
6 Flange Inserts (2 each of 17mm, 19mm, and 21mm)
4 Silicone Diaphragms
6 Duckbill Valves
10 Milk Storage Bags
1 Nipple Ruler
2 Nursing Bra Extenders
1 Breastfeeding Guidebook
1 User Manual

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New S21 Series - Data-Driven Excellence

MomMed LuxerFlow™ Technology

Engineered through clinical insights from 10,000+ nursing mothers, our LuxerFlow™ system delivers optimized expression rhythms that match natural feeding patterns. Clinically proven to achieve 45% greater milk output compared to standard pumps.

Biomechanical Comfort Redefined

Gentle Expression

Our hospital-grade soft silicone cushions and precision vacuum pump work in harmony to replicate an infant's natural suckling motion (45-220 mmHg range). Experience zero discomfort while maintaining peak milk flow efficiency.

Complete Drainage, Maximum Output

Effortless Emptying

The Dynamic Vacuum Algorithm intelligently alternates between stimulation and expression phases, achieving 98% milk drainage efficiency - 35% faster than conventional pumps.

Holistic Pumping Philosophy

For Your Milk, For Your Well-Being

Beyond milk collection, we champion maternal wellness through precision-engineered customization: 3 Smart Modes × 12 Micro-Adjustable Levels = 36 Personalized Expression Programs.

Global Safety Assurance

Certified Protection System

Multi-layered safety standards validated through:
✓ FDA 510(k) Cleared Medical Device
✓ CPC Child-Safe Material Certification
✓ BACL International Lactation Compliance
✓ ISO 13485 Quality Management System"

Safety Commitment:

Triple Validation Process (Material/Electrical/Biological)
2000+ Hour Endurance Testing
24/7 Pump Performance Monitoring

Why Choose MomMed?

Here's How We Compare

MOMMED S21

MomMed S10 Pro

Other Wearable Pumps

Modes

3

2

Levels

12

9

Volume

≤ 45dB

≤ 50dB

Suction

- 280mmHg

- 270mmHg

Capacity

5-6oz

5-8oz

4-6oz

Usage Time

5-6 Sessions

6-8 Sessions

3-5 Sessions

Weight

230g

280g

Privacy

Fully In-Bra

90% In-Bra

80% In-Bra

Warranty

1 Year

30 Days

FAQs

To assemble the MomMed S21 wearable breast pump, align all parts securely as shown in the user manual. Make sure the silicone flange and diaphragm are properly seated. For cleaning, disassemble all washable parts and sterilize with boiling water or a sterilizer. Avoid washing the motor unit. Proper cleaning ensures optimal suction and hygiene.

Yes! The MomMed S21 is a hospital-grade double electric breast pump with powerful suction up to 280mmHg. It's designed for both occasional and exclusive pumping moms, offering adjustable suction modes to fit your comfort and milk flow needs.

Absolutely! The S21 is a hands-free, wireless breast pump designed for busy moms. With its quiet motor (≤45 dB) and wearable design, it fits discreetly in your bra so you can pump anywhere—at work, in the car, or even while doing chores.

The MomMed S21 breast pump comes with a built-in rechargeable battery that lasts up to 5–6 pumping sessions per full charge. Use the included USB charging cable and allow approximately 2 hours for a full charge. Always charge before first use.

Yes, each S21 wearable pump includes a 24mm flange and three insert sizes (17mm, 19mm, and 21mm) to ensure a comfortable fit. A proper flange fit helps improve milk output and prevents nipple soreness. Not sure about your size? Use our sizing guide or consult with a lactation expert.

The S21 has 3 modes—Stimulation, Expression, and Auto—each with 12 adjustable levels. Start with Stimulation Mode to stimulate letdown, then switch to Expression Mode to collect milk. The Auto Mode mimics a baby's natural suckling rhythm. Customize the settings to find your ideal comfort and efficiency.

Yes, all components that come in contact with breast milk are made from BPA-free, food-grade materials. Your baby’s safety is our top priority.

S21 Breast Pump: The S21 breast pump offers unmatched convenience for on-the-go nursing mothers with its compact design and advanced features. It has an LED screen and physical buttons for durability, operates quietly at less than 45 dB, and provides 3 modes and 12 intensity levels. With a long battery life for 4-6 sessions, a 6oz capacity, and a 105° ergonomic flange, the lightweight and comfortable S21 ensures discreet and efficient pumping anytime, anywhere.S10 Pro Breast Pump: The S10 Pro breast pump is perfect for mothers with high pumping needs, offering efficient milk expression and personalized settings. It features a large capacity, extended battery life for 6-8 sessions per charge, and 3 modes with 9 intensity levels. The 105° ergonomic flange ensures a comfortable fit for most breasts, while the wider display with an embedded timer adds convenience for all-day use.

I like it but I’m not in love

The suction is pretty good that might got be my favorite pro about this pump. I also like the other settings as well. The pump began to glitch and the digital readings began to disappear around week 3, now fast forward 2 weeks later and the numbers are slowly becoming more visible to read again. I don’t like the fact that it leaks when placed up right on my counter while awaiting to dump my milk into my container of bottle. A few times the milk even spilled from the bottom when taking it out from my bra. Which is weird because I always pull them out in an upward motion. Also one pump battery will not turn off, I have to leave it running after my session until the battery dies and then recharge it for the next session.

Definitely recommend

I tried mine after receiving it in the mail and it's great. I actually forgot it was still in my shirt due to it being quiet. Definitely worth the money and definitely what I was looking for when I return back to work.

I had high expectations for these howver the battery on them isnt very good.

Worth it

I had been seeing reviews for this pump on TikTok so I decided to give it a try, as I am a bit too skeptical to try a $300/$400 pump. I’d be too worried about being dissatisfied. These wearables certainly live up to the hype! My other wearables were so loud, weren’t leak proof, and still left me feeling full. Where I was getting about 25 oz in a 12 hour workday with those, my output is now close to 40oz in the same time frame. I am so impressed and very glad that I made this purchase. I no longer have to worry about having enough milk for my babe, as I have an oversupply, naturally, and this pump ensures I’m emptying out completely. I would highly recommend taking a chance with these. I have yet to see a bad review.

Good pump for price

I get the same amount from my Spectra wall pump, which is great for a wearable. I don’t go past 9 often. I usually use auto and I always use my legendairy milk inserts (19mm). I can wear on walks and carry my 7 month old on my hip. I exclusively pump and I wish I had discovered these sooner.