Momcozy M5 Vs S12 Pro
Both the Momcozy S12 Pro and Momcozy M5 breast pumps are designed to provide portable and hands-free breast pumping, offering efficient performance and enhanced convenience, at an affordable price.
Yet, there are some distinct differences between the Momcozy S12 pro and M5 wearable breast pumps. So, the question remains: which one is best for you?
From their flange design to battery life, I’ll be discussing the features, pros, and cons of both the Momcozy M5 and the Momcozy S12 Pro models so you can determine which pump aligns best with your preferences and needs.
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Similarities and Differences
The M5 and S12 Pro are both popular breast pumps from the Momcozy range. Whilst there are some newer Momcozy pumps available, I think the M5 and S12 Pro will be staples in the wearable breast pump market for a long while yet.
But what makes these two pumps so popular? And how do they differ from one another?
Let’s take a look, with my Momcozy M5 vs S12 Pro comparison!

Pump Design
One of the most obvious differences when you look at both the M5 and S12 Pro Momcozy is their different designs.
Whist both pumps are wearable, a closed system, and have no tubing or wires that connect it to a motor, the M5 is an all-in-one pump. This means the motor is attached to the collection cup in a single unit.
In contrast, the S12 Pro’s pump motor sits on top of the collection cup. Having the pump motor sitting on the top of the collection cup makes the S12 Pro slightly less discreet in my opinion as you will see the pump motor sticking out of the top of your bra.

Flange Design
When it comes to flange design, both the Momcozy M5 and S12 Pro breast pumps have the Momcozy DoubleFit Flange in common. This feature is basically a breast cushion on your flange that is designed to provide a snug and comfy hug around the breast during pumping. This has two main benefits, comfort and preventing leaks, so moms can pump with confidence.
However, when it comes to flange design, I think the M5 shines with its unique 105° flange slope opposed to the standard 90° flange slope of the S12 Pro.
This innovative design focuses on the angle at which the flange cups the breasts during pumping, which directly impacts milk flow and overall comfort.
The 105° flange slope aims to mimic the natural curvature of a baby’s mouth when latched onto the breast. This is meant to enhance comfort and minimizes any potential discomfort caused by compression of milk ducts, a common concern when using traditional breast pumps.
Importantly, this specific flange slope contributes significantly to the efficiency of milk flow. By allowing milk to flow naturally and unobstructed, the M5 streamlines the pumping process, potentially leading to higher milk output in less time.
I really do think this distinctive flange slope feature on the M5 is great for moms who are looking to prioritize their comfort during pumping.

Pumping Modes And Suction Levels
The Momcozy M5 and S12 Pro breast pumps share several similarities with their modes and suction levels.
Both pumps feature a power suction capability at 280 to 300mmHg and both pumps offer 9 intensity levels and encompass 3 modes: stimulation, expression, and mixed. These modes cater to different phases of pumping and milk expression, allowing users to adapt their pumping sessions to their specific needs.
The notable difference in pumping modes lies in the Momcozy M5’s introduction of a vibrate-to-pump mode.
This innovative mode enhances efficiency by incorporating vibrations during pumping. I personally love this vibrating function, as it is designed to gently loosen milk ducts, which can result in an increased milk output and quicker pumping sessions.
I feel this vibration feature, coupled with the unique flange angle, really help to set the M5 apart.

Collection Cups
When looking at the container capacity, I think both pumps provide more than adequate container capacity.
The minor difference is that the Momcozy M5 has a container capacity of 5.4 ounces, while the S12 Pro takes it a step further with a slightly larger 6-ounce capacity.
Another minor difference is because of design of the S12 Pro, with the pump motor on top, you can see the breast milk levels in your collection cup easier whilst you are wearing your pump. I do like that you can quickly glance down and see your progress, rather than having to try tilt your head slightly like the M5.
I love that both pump containers also come with an east to pour feature, so you end up with less spillage of your liquid gold!
Battery Life And Charging
Whilst it might not be at the top of your list, I think considering the battery life and charging capabilities of your breast pump is a key factor, especially if you’re looking for a pump to have on the go.
The clear winner here for me is the S12 Pro.
It comes with a 140-minute battery life and only takes 1.5 hours to recharge using a USB Type C fast charging option.
In contrast, the M5 has a 120-minute battery life and takes 2 hours to fully recharge.

LED Screen
Firstly, I love that both the M5 and S12 Pro are equipped with LED screens, but again the S12 Pro is a standout for me.
The Momcozy M5, LED screen is super simple and only covers the basics with mode and suction level. You can also see the battery life but only when you first turn it on.
On the other hand, the Momcozy S12 Pro takes the LED screen a step further with it’s much larger and clearer screen, which also includes your battery life.
However, what I really love about the S12 Pro LED screen, and what is missing from the M5, is the in-built timer. I think an in-built timer is a very valuable feature to easily keep track of your pumping session.
And it comes with a great backlight for easy viewing during night pumping sessions.

Portability
What I love about the S12 Pro and M5 breast pumps is that they are both wearable, so both are extremely portable by design.
I think in terms of portability though, the Momcozy M5 stands out with its lightweight and compact ‘all-in-one’ design.
By reducing the size of the LED screen and cup capacity the M5 is smaller and lighter than the S12 Pro, weighing just 230g per cup.
That said, I think the S12 Pro is still extremely portable, even though it is slightly bigger.
What I do really love though, is the inclusion of a hard-shell carry case with the M5! It not only looks great but makes for easy transportation and protection for the pump, making it an ideal companion for on-the-go mothers.
The M5 also comes with handy flange covers to help protect pump whilst pumping on the go.
Noise
The Momcozy S12 Pro and M5 have a similar noise range at less than 50 dB.
Price And Value For Money
Given both the features of these pumps, you may not be surprised to learn that the Momcozy M5 is slightly more expensive than the Momcozy S12 Pro.
I think the unique flange design, vibration mode and discretion of the M5 offers a ton of value that is worth the additional cost.
That said, I think both provide great value for money especially when compared with other premium pumps on the market such as Willow and Elvie.
The Verdict
In my opinion, I think both the Momcozy M5 and S12 Pro breast pumps are great options for an affordable wearable breast pump. While each pump offers a range of benefits, features, and innovations, the final decision should really come down to what best suits your individual needs.
For me, the Momcozy M5 shines with its unique 105-degree flange angle and vibrate-to-pump feature in the mixed mode that offers a unique advantage in stimulating milk flow and increasing output. I also love the addition of the hard-shell carry case!
On the other hand, the Momcozy S12 Pro with its larger LED screen, built in timer, longer battery life, and faster recharging time make it a very attractive choice, especially if you are on a budget.
Ultimately, I think the decision between the Momcozy M5 and S12 Pro hinges on personal preferences. If you’re still unsure, you may want to check out my full guide on which is the best Momcozy pump for a complete comparison of all models.
If you’re looking for a part-time pump that focuses on comfort and output, then I think the Momcozy M5 is an excellent choice.
If budget is a key part of your decision, then I think with its longer battery life and more control over your pumping experience, that the Momcozy S12 Pro is for you.
Think either the the Momcozy M5 or Momcozy S12 Pro is the right pump for you?
Use the code: PUMPINGMILK at the Momcozy checkout to get 15% off.
Use the code: pumping10 at the Amazon checkout to get 10% off (M5).
Use the code: pumpings9s12 at the Amazon checkout to get 10% off (S12 Pro).