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This review of wearable breast pumps comes from "From Mom to Mom," a popular YouTube creator known for her practical advice for mothers. In this review, she compares three different wearable breast pumps to determine which is best for working mothers. She reviews the Momcozy M9, the Eufy S1 Pro, and the Elvie to find the best fit for working moms. Her top pick is the Momcozy M9 — chosen for its price point, comfort, and milk output. Now, let's explore detailed insights into why that is.
Suction Strength Comparison
The first topic From Mom to Mom covers is suction level, assessing the strength of each pump. She found that if a stronger suction capability is needed, the Momcozy M9 and the Eufy S1 Pro emerge as the clear winners. Both pumps boast 300 mm Hg of suction. The Elvie, however, trails slightly with 220 mm Hg, indicating it's a bit behind in terms of power. She noted this difference during her testing.
Pumping Modes and Levels
Second on the agenda are the modes and levels each pump offers. The Momcozy M9 provides 15 different levels and three distinct modes: stimulation, expression, and a mix mode. She personally uses the mix mode to get second and even third letdowns while pumping. Additionally, the Momcozy M9 app includes two professional modes: Milk Boost™ and Milk Relief™. Users can also change the cycle within the app, offering even more options to optimize their pumping experience and maximize milk output. In contrast, the Eufy S1 Pro and the Elvie both offer two modes (stimulation and expression) across seven different levels. From Mom to Mom expressed her preference for having more options, stating it allows her to find what is most comfortable and effective, and that's where the Momcozy M9 truly wins.
Additional Pump Features
The third topic is pump extras. One advantage of the M9 is its more detailed on-screen control. Users can precisely see what they are doing on the screen, including changing modes and levels. It also features a built-in timer and a battery life indicator. The Eufy S1 Pro and the Elvie, in comparison, are much more simplistic on the pump itself, displaying fewer details. An extra unique to the Eufy S1 Pro, which is not found on the Momcozy or the Elvie, is a built-in heating function. The Eufy's heating mode can be activated directly from the app and is designed to potentially increase milk output, she explained.
Flange Design & Sizing
Regarding flanges, the fourth topic, From Mom to Mom notes that each of these three pumps comes with a standard 24-millimeter flange. However, the Momcozy M9 stands out as the only one with a double-seal flange, which she observed provides "amazing suction" and enhances pump efficiency. While all three come with a 24mm standard flange, both the Momcozy M9 and the Eufy S1 Pro offer multiple sizing options for inserts. For those needing larger than 24mm, Momcozy flanges in 27mm are readily available on their website or Amazon. Thus, both the Momcozy and Eufy S1 Pro stand out for offering better flange sizing options.
Comfort & Material
As for comfort, she describes the Momcozy's double-seal flange as "extremely comfortable," attributing this to its soft silicone material. The Eufy also features a silicone outer shell, providing flexibility and additional comfort, she found. The part of the Elvie pump that touches the skin lacks significant curvature and is made of hard plastic, unlike the softer materials of the other two.
Milk Collection System
Moving on to the collection cups, both the Momcozy and the Elvie come with cups where milk flows during pumping. The Eufy, however, has a different shape and lacks a traditional collection cup. This part of the Eufy fits directly to the skin, allowing milk to collect up to approximately 6 ounces.
Convenient Milk Storage
Momcozy M9 offers the best independent storage option. Once pumping is complete, users can simply remove the motor, detach the skin-touching part, and add a stopper. This allows the collection cup to be stored directly in the fridge, offering considerable convenience for working moms or those on the go. She emphasized that the Momcozy comes with four such leakproof stoppers, making it the superior choice for storage. She explained that after pumping with the Momcozy, you can simply remove the motor, slip off the collection cup, use a provided lid, and store it directly in the fridge. This design, she explains, saves the headache of transferring milk to bottles and bringing extra parts to and from work. The Elvie includes two collection cups per pump, while the Eufy S1 Pro does not come with any, requiring users to pour milk directly into a bottle or bag for transport.
Noise Level Analysis
Next, From Mom to Mom discusses the noise levels of the pumps. She definitively states, "Hands down, the Elvie is the most quiet of the pumps and is one of the most quiet on the market." The Momcozy and the Eufy S1 Pro are quite comparable in noise, with the Eufy being slightly louder. She provided the ratings: Momcozy at 42 decibels and Eufy S1 Pro at 46 dB, reiterating the Elvie's impressive quietness.
Charging & Portability
Regarding charging and carrying cases, the Momcozy includes a complimentary case for storing all components. The Eufy, while offering a convenient charging case, comes at an extra cost, she noted. The Elvie pump does not include an additional case. She also shared her personal experience, mentioning that she purchased the Elvie pump in 2025 and found it still uses an older type of charging port, which charges very slowly. In contrast, both the Momcozy and the Eufy feature modern Type-C charging ports.
Cleaning & Sterilization
For cleaning, she stresses that any part touching milk or skin must be cleaned. She suggests using quick-clean sterilization bags in the microwave, particularly for pumping at work. The Momcozy pump is very easy to clean due to its large spout, allowing thorough access to all corners. All Momcozy pump parts support steam sterilization in the microwave using such bags or containers. However, the Eufy S1 Pro does not support this method. From Mom to Mom pointed out that for working mothers who likely rely on microwave sterilization, this would be a significant drawback.
Price and Final Recommendation
Concluding her review, From Mom to Mom expressed her desire to help viewers get the best value for their money. Even disregarding the price, she confidently declared that the Momcozy M9 "would be the winner for [her] every single time." The Elvie pump is the most expensive of the three, costing around $550 for two pumps, and in her opinion, it offered the fewest upgrades. The Eufy S1 Pro with its carrying case is approximately $350 for a double pack, but she reiterated it would not be her choice among the three.
The Momcozy M9 is her top recommendation, and notably, it was the most affordable option of the three, priced at under $300. Despite its budget-friendly price tag, she believes it provides the most features and flexibility during pumping, and she consistently achieved the most milk output with it. Ultimately, its performance proves that you don't have to sacrifice quality for price, making the M9 a clear winner in her book.
