Momcozy M9 vs V1 Pro
If you’re trying to decide between the Momcozy M9 and Momcozy V1 Pro, you’re not alone. Both pumps offer powerful suction and great features, but they have key differences that may make one a better fit for your pumping needs.
The Momcozy M9 boasts an all-in-one design with mobile app control, making it convenient for discreet adjustments. Meanwhile, the Momcozy V1 Pro features longer battery life and built-in controls, giving you more hands-on functionality.
Which one is the best choice for you? Keep reading as we break down their features, pros, and cons to help you decide. Or you can watch my full M9 vs V1 Pro comparison video review below.
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Similarities and Differences Between Momcozy M9 and V1 Pro
When comparing the Momcozy M9 and V1 Pro, you’ll find more differences than similarities between these two Momcozy pumps. While both offer hospital-grade suction, 15 suction levels, and three pumping modes, their designs and overall functionality set them apart.
For a broader look at how these models fit into the full Momcozy lineup, check out my Best Momcozy Pump comparison.
Now, let’s take a closer look with my Momcozy M9 or V1 Pro comparison!

Pump Design
Both the Momcozy M9 and V1 Pro are designed for hands-free use, however they are very different in design.
The Momcozy M9 features an all-in-one design, where the motor is directly attached to the collection container, making it more compact and discreet.
In contrast, the Momcozy V1 Pro uses a separate motor and collection cups connected via tubing. This design makes the cups significantly smaller and lighter, weighing 130g per cup compared to the M9’s 320g, which can provide added comfort for long wear, however it is less discreet due to the tubing and separate motor.
Another benefit of the separate pump motor is that the V1 Pro’s collection cups have a much larger capacity, holding up to 7 oz of milk compared to the M9’s 5 oz, making it a better option for high milk producers.

I should point out though, that the Momcozy M9 collects your breast milk into a 5oz bottle rather than just a collection cup like the V1 Pro. This means, once you’ve finished your pumping session, you can then simply remove your bottle, add the cap, and store it as per breast milk storage guidelines. On a positive, you can purchase a pump direct to bag kit for the V1 Pro for easy milk storage, but it is an additional cost.
The one downside to the Momcozy M9 design is that it has more complicated parts to it. This means potentially more maintenance and additional cleaning.
If you prefer a compact, all-in-one design, the M9 is the better option. However, if you want smaller, lighter cups with a separate motor for added comfort and a larger milk capacity, the V1 Pro is the better choice.

Flange Design
The Momcozy M9 and V1 Pro both use Momcozy’s DoubleFit™ flange technology, which combines hard and soft silicone to provide both stability and comfort. However, there are notable differences between the two designs.
The Momcozy M9 comes with a standard 24mm flange made of a mix of hard and soft silicone. It has a 90-degree flange slope, which is a more traditional design. While this provides effective suction, it lacks the ergonomic curvature found in some other pumps. The M9 does not come with larger flange sizes, but does include smaller flange inserts, 17mm, 19mm, and 21mm, for those who need a smaller fit.
The Momcozy V1 Pro, on the other hand, features a unique 102 degree flange angle which is designed to mimic the positioning of the baby’s mouth for more comfort and better milk flow. It also includes Momcozy’s DoubleFit™ flange, but with a slightly larger soft silicone cushion for added comfort. Like the M9, the V1 Pro comes with multiple flange insert options, including 17mm, 19mm, and 21mm, however, it also does not offer currently offer a larger flange option beyond the standard 24mm.
If you have elastic nipples, it’s important to note that the flange tunnel on the M9 is quite short and its not a pump I’d recommend. The flange tunnel on the V1 Pro is longer, and might be suitable, but if you have elastic nipples, my recommendation is the Momcozy S12 Pro as it has the longest flange tunnels of the Momcozy range.

Suction & Modes
Both the Momcozy M9 and V1 Pro feature hospital-grade suction at 300mmHg with 15 suction levels and three pumping modes (stimulation, expression, and mixed). However, the way you control these settings varies between the two pumps.
The Momcozy M9 has controls limited to adjusting suction levels and modes directly on the pump. However, it includes a mobile app with additional features for customization.
Within the Momcozy app you have the include of two additional professional modes: Milk Relief and Milk Boost.
Milk relief is a quick release for balanced milk flow that is designed to help with engorgement. The milk boost is similar to power pumping and designed to help boost your milk supply. Please note though, these additional modes can only be accessed via the Momcozy app.
And to top that off, the Momcozy app also lets you customize your own pumping patterns! This means you have complete control of your pumping rhythms to best suit your output and comfort levels.

On the other hand, the Momcozy V1 Pro allows you to adjust your suction, modes, and pumping frequency directly on the pump. It also features an adjustable timer that automatically stops pumping after your set duration.
If you prefer hands-on control without using an app, the V1 Pro is a better choice. If you like app-based customization, the M9 offers more flexibility.
Battery Life
A long battery life can be a game-changer, especially for busy moms who pump frequently.
- Momcozy V1 Pro: 270-minute battery life (about 9+ pumping sessions per charge)
- Momcozy M9: 150-minute battery life (about 5 pumping sessions per charge)
Key Takeaway: If you pump multiple times a day and want fewer recharges, the V1 Pro is the better choice.
Noise Level
Both pumps operate quietly, but there is a slight difference:
- Momcozy M9: Under 50 dB
- Momcozy V1 Pro: Slightly quieter at under 48 dB
Key Takeaway: Both pumps are quiet, but the V1 Pro is slightly quieter.
Cleaning & Maintenance
Cleaning and assembling parts can make a big difference in ease of use.
The Momcozy M9 has more parts to clean, including extra small components that may wear out over time. In contrast, the Momcozy V1 Pro has fewer parts, with only three main pieces to clean, making it easier to maintain.
If you prefer a pump that is easier to clean, the V1 Pro is the better choice.
Value for Money
When considering value for money, the V1 Pro is the more budget-friendly option priced at $199, while still offering powerful performance and comfort.
The M9 is more expensive at $269, however it is ideal for those who want advanced technology and additional convenience features.
The M9 also comes with a few more value add features compared to the V1 Pro like it’s hard-shell carry case.
Final Verdict: Which One Should You Choose?
Both pumps are great, but the best choice depends on your needs:
- Choose the Momcozy M9 if you want app control, a more compact design, and mobile functionality.
- Choose the Momcozy V1 Pro if you prefer longer battery life, lighter collection cups, and built-in controls for easier adjustments.
No matter which pump you choose, both options provide strong suction, comfort, and portability, making them great choices for busy moms.
Think either the Momcozy M9 Mobile Flow or Momcozy V1 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 the M9.
Use the code: pumpingv1v2 at the Amazon checkout to get 10% off the V1 Pro.
Still have questions? Let me know in the comments!