MomMed S21 Breast Pump: A Cost-Effective Hands-Free Breast Pump

Are you looking for a hands-free breast-pump that won’t break the bank? I recently tried the MomMed S21 breast pump and here is my honest review.

MomMed Breast Pump Unboxing
Image Credit: Arnie Nicola via

Why MomMed?

MomMed is a leading online baby and maternity supply store. According to MomMed, they launched their portable and wearable breast pump for working mothers. Their hope is that with this device, they will have a convenient, affordable and dignifying experience while pumping. It is designed to be used outside while multitasking, such as working in an office or ever pumping in your car. 

Features of MomMed S21 Breast Pump

As a breastfeeding mother, I understand the importance of having a comfortable and efficient breast pump. The MomMed S21 Breast Pump is a great option for mothers who want a hands-free and portable breast pump. Here are some of the features that make the MomMed S21 Breast Pump a great choice:

Comfort and Convenience

The MomMed S21 Breast Pump is designed to be comfortable and convenient for mothers. The pump has a soft and flexible silicone breast shield that feels secure and gets a really good suction for maximum milk extraction. 

The MomMed S21 Breast Pump is also designed to be portable and easy to use. The pump is lightweight and compact, making it easy to take with you wherever you go. The pump is also easy to assemble and disassemble, and each part is very easy to clean and maintain. On top of that, the breast pump comes with a fabric storage bag which comes in handy so you can have everything you need in one place in case you need to travel with it

Multitasking and Support

The MomMed S21 Breast Pump is designed to help mothers multitask while pumping. The pump is hands-free, so you can totally pump while doing other activities such as working, cooking, or taking care of your baby. It’s also pretty quiet, and while it’s not completely inconspicuous, you won’t be deafened by the sound of the machine. 

The MomMed S21 Breast Pump also comes with a support bra strap that allows you to wear the pump inside your bra for even more convenience. The adjustable bra strap can be used with most nursing bras so you can comfortably adjust your nursing bra to fit the breast pump.


The MomMed S21 breast pump is cost-effective and is a great investment for nursing moms. At the time of purchase, two breast pumps cost $119 USD, which is way less expensive than the leading hands-free breast pump, such as the Medela free-style or the Elvie breast pump.

Accessories and Replacement Parts

The MomMed S21 breast pump is comprehensive and comes with everything you need to be successful in breastfeeding. The package I got comes with all of these items:

  • 2 wearable breast pump, which consists of:
    • Silicone breast shields
    • Pump motor
    • Silicone diaphragm
    • Milk collector
    • Duckbill valve
  • 2 bra adjustment straps
  • 2 small brushes for easy cleaning
  • 2 pieces of 24mm flange inserts
  • 2 type-c cable to charge the pump motors
  • 2 fabric storage bags
  • 2 packs of milk storage bags
  • User manual and breastfeeding manual
MomMed Breast Pump Package
Image Credit: Arnie Nicola via

One of the most important accessories for the MomMed S21 Breast Pump is the silicone breast shield. The breast shield is the part of the pump that goes directly on the breast and is responsible for creating suction to extract milk. The silicone material in this breast pump is soft and gentle on the skin while also creating an effective suction, making pumping sessions pain-free and comfortable.

MomMed Breast Pump Accessories
Image Credit: Arnie Nicola via

In addition to the breast shield, the package comes with 24mm flange inserts. These are the default flange sizes that comes with the package, however, you can purchase different sizes of flange inserts (17mm, 19mm, 21mm, and 24mm) from the MomMed website and Amazon.

The package also comes with 4 extra silicone diaphragm and 2 extra duckbill valves in case you need replacement parts. 

Overall I do recommend getting this package from Amazon as it is comprehensive and you get everything you absolutely need if you want to be successful with pumping.

How to use MomMed S21 Breast Pump


If you have never used a breast pump before, it may be confusing to set up. However, the MomMed S21 breast pump makes it easy to use because the breast pump is already assembled when you take it out of the box. You can study how it’s put together so that you can easily take it apart and reassemble when you need to use it next. The user manual that it comes with is also very helpful in teaching how to assemble the breast pump.

Pump Motor Settings

The pump motor comes with a digital display so you can easily see what settings you are on. There are three different settings with 12 levels of intensity:

  • Expression setting
  • Stimulation setting
  • Automatic setting (Level 1-6 are massage mode, while levels 7-12 are expression modes

You can press the power button to toggle between the different settings, and the +/- signs to toggle between levels. 

MomMed Breast Milk Storage Bags
Image Credit: Arnie Nicola via

Personally I like to use the expression mode at the highest level so I can get the most milk from each pumping session. However, I have been breastfeeding for a while, so I am used to the higher levels. If you are just starting out with breastfeeding and pumping, you should use the lowest intensity and build up as you see fit. 

Using the MomMed S21 Breast Pump

Privacy and Discretion

According to MomMed, they created the S21 breast pump so that women can discreetly pump wherever they are. However, I only ever use it in the comfort of my own home, therefore this is not an issue for me. With that in mind, I will say that the pump is still quite bulky, and the only way I can think of for a mother to pump discreetly while running errands is if it’s done under a very baggy sweater. 

My Personal Experience


When I opened the package I was pleasantly surprised with all the items that the breast pump comes with. The packaging was minimalistic but well presented. I was happy to see that it comes with a cleaning brush as well as milk storage bags and fabric storage bag for the breast pump.

MomMed Breast Milk Storage Bags
Image Credit: Arnie Nicola via

Assembling The Product

I had no issues with assembling the breast pump because I have used a few in the past and was familiar with how breast pumps are generally assembled. With that said, I probably still would have had no issues with assembly since the instructions were clear and the pump comes fully assembled.

Breast pumping

The product had a notably strong suction, and was able to pump a few ounces of milk. I do not exclusively breastfeed anymore since my daughter is 19 months old, however I still do regularly breastfeed, and the amount I was able to collect within a 20 minute time-frame makes sense for someone who is not breastfeeding full-time. 

I did have some difficulties trying to figure out the digital display, as it’s not as straight-forward as I am used to. However, the manual did a good job explaining what each setting means and what the display means. 

Pros and Cons

As with all products, there are pros and cons with using the MomMed S21 breast Pump. Here are the most notable pros and cons.


  • Efficient and Natural Suction: The MomMed S21 Wearable Breast Pump offers three modes and twelve levels of suction, closely imitating the baby’s sucking motion to promote efficient milk production.
  • Anti-Leak Design: The all-in-one design and closed system prevents milk leakage and reflow, ensuring a hygienic pumping experience.
  • Lightweight: The ergonomically designed semi-circular body of the S21 pump fits comfortably under clothing, allowing moms to pump on the go without added weight.
  • Convenience and Low Noise: With an LCD screen and user-friendly physical buttons, the S21 pump is easy to operate. It also operates quietly, with noise levels below 45 dB, ensuring minimal disturbance to sleeping babies and maintaining privacy in public spaces.
  • Compatibility and Accessories: The S21 pump is compatible with widely available replacement parts, providing convenience and flexibility. In addition, MomMed offers a range of accessories to meet various needs.


I am hard pressed to say any cons about this product because it’s well designed, at a good price range and also comes with all the necessary accessories to have a successful breast pumping journey. However, there are the cons that I noticed about the product.

  • Not Inconspicuous: It’s advertised as a sleek product that can be used out and about, but I believe it’s still quite bulky that people will definitely see that it’s under your shirt
  • Confusing Digital Display: The digital display is a little confusing at first as it looks like it’s showing hour and minutes instead of level and number of minutes.

Frequently Asked Questions

How does the MomMed S21 Breast Pump compare to other wearable breast pumps on the market?

As a busy mom, I need a breast pump that’s portable, easy to use and cost-effective. The MomMed S21 Breast Pump is a great choice for moms who are busy and price-conscious. Its double-wearable design and low noise make it incredibly convenient to use anywhere, anytime. Compared to other wearable breast pumps on the market, the MomMed S21 Breast Pump stands out for its effectiveness and its fair price.

What are the different modes and settings available on the MomMed S21 Breast Pump?

The MomMed S21 Breast Pump features three pumping modes and 12 adjustable levels, making it easy to customize your pumping experience to fit your needs. The three different settings are: expression, stimulation, and automatic. 


What are the reviews saying about the MomMed S21 Breast Pump?

The MomMed S21 Breast Pump has received positive reviews from many satisfied customers. Moms appreciate its portability, ease of use, and superior suction power. Some reviewers have noted that the pump can be a bit noisy, but overall, the feedback has been overwhelmingly positive.

Is the MomMed S21 Breast Pump available on Amazon?

Yes, the MomMed S21 Breast Pump is available for purchase on Amazon. It’s also available on the MomMed website.

Is renting a hospital-grade pump worth it compared to purchasing the MomMed S21 Breast Pump?

Renting a hospital-grade pump can be a good option for moms who need to pump frequently or have difficulty with milk production. However, for most moms, purchasing a high-quality pump like the MomMed S21 Breast Pump is a more cost-effective and convenient option. The MomMed S21 Breast Pump is affordable, portable, and easy to use, making it a great choice for busy moms.

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