Best Pump for Working Moms? Let's Compare: Momcozy M9 vs Eufy E20 vs Willow Go

Abbie Flater, a full-time working mom and popular YouTube personality with 23.6K subscribers, recently shared a review of the Momcozy M9 breast pump on her channel.

Although the video is sponsored, Abbie assured her audience that she would provide a completely candid and unbiased review. She committed to being transparent about her preferences and the reasons behind her choice, ensuring her feedback was honest and reliable.

Quick Comparison Chart: Momcozy M9 vs Eufy E20 vs Willow Go

1. Suction Strength, Modes, Levels, and App Features Comparison

Suction Strength

In terms of suction strength, both the Momcozy M9 and the E20 pump deliver 300 mmHg—this applies equally to the Eufy S1 and S1 Pro models. The Willow Go, while technically rated at 280mmHg, is not significantly behind the others. Though she acknowledged that performance can vary day-to-day with any pump.

Modes and Levels

Each pump offers different approaches to suction levels and operational modes, affecting user convenience and pumping effectiveness.

Momcozy M9: The M9 breast pump provides 15 suction levels and features three pumping modes: expression mode, stimulation mode, and a mixed mode that combines both for more effective milk extraction. You can create personalized presets tailored to different situations, whether you're pumping at work or trying to boost your supply. The preset modes automatically handle transitions between the different pumping phases.

• Eufy E20: The Eufy E20 wearable breast pump offers 7 suction levels with 4 rhythm patterns. Users can independently adjust suction strength and speed, enabling combinations like high suction with fast cycling. This flexibility benefits mothers needing strong suction with varied stimulation patterns.
• Willow Go: The Willow Go wearable breast pump has 6 stimulation levels and 9 expression levels with basic stimulation and expression modes only. Higher suction automatically means slower speed—a fixed setting that cannot be changed.

The Momcozy M9 breast pump offers the most customization options, while the Eufy provides balanced flexibility and the Willow Go wearable breast pump maintains straightforward operation.

App Features and Customization

All three pumps have easy-to-use apps, but they differ quite a bit in what you can actually customize and how convenient they are to use.

• Momcozy M9: The Momcozy app lets you fully customize your pumping settings and save different presets for various situations. This means you don't have to keep adjusting things manually while pumping, which is really helpful when you're at work and need to focus on other things.
• Eufy E20: The Eufy app also gives you lots of customization options, so you can set up your preferred settings and let it run without babysitting it. Like the Momcozy M9 breast pump, this hands-off approach makes pumping much more convenient during busy workdays.
• Willow Go: The Willow Go wearable breast pump automatically gives you two minutes of stimulation before switching to expression mode. You can set your preferred levels, but that's about it for customization. You'll need to watch the clock and manually switch between modes, which can be annoying when you're trying to work or do other things.

Both the Momcozy and Eufy apps work better for busy moms since they handle the timing and mode switching automatically, while the Willow Go requires more attention and manual control.

2. Unique Features and Design

The review then transitioned to discussing the unique features of each pump. It was noted that every pump possesses distinct characteristics.

Momcozy M9's Unique Screen and Switch

Starting with the Momcozy M9 breast pump, Abbie highlighted its integrated screen, visible when worn in a bra. She demonstrated how the screen displays pumping duration, battery level, and allows for power on/off, mode switching, and suction level adjustment.

The M9's ability to switch between left and right breast settings was particularly appreciated. This was a significant improvement, as Willow pumps required adhesive labels to differentiate sides, and switching necessitated removal from the app and re-pairing. Abbie, an experienced pumper, understood that parts get wet and labels can fall off. She even resorted to creating her own labels with a Cricut machine, which was far from convenient. Thus, the M9's left/right switch was a highly valued unique feature.

Eufy's Heating Feature

Regarding the Eufy, its heating feature earned significant praise. Abbie had found over the past year that incorporating heat often yielded her best let-downs, particularly crucial when dealing with stubborn clogs. While she typically had to nurse her baby to relieve clogs, a recent experience saw the Eufy successfully clear a clog within minutes using its warming function. This capability was noted as an excellent recommendation for mothers who frequently experience clogs.

Willow Go's Limited Unique Features

When it came to unique features for the Willow Go wearable breast pump, Abbie admitted struggling to identify one, apart from its recently introduced stopper. She acknowledged the Willow Go wearable breast pump's unique aesthetic and appreciated the ability to visually monitor milk flow directly through the pump while wearing it. However, she genuinely wished for more distinctive features in the pump itself. Abbie, a self-proclaimed long-time fan of Willow products (having extensively reviewed them in previous videos), confessed to feeling a degree of disappointment now that she had experience with other pumps, given Willow Go's status as her primary pump for so long.

3. Flanges and Leak-Proof Design

If you've ever had a pump slip or leak while you're trying to get work done, you know how important comfort and leak prevention are.

Flange Materials and Comfort

Momcozy M9 breast pump has double-layered silicone flanges that are surprisingly comfortable and grip well enough to stay put in your bra. If you're someone who can't sit still all day or you're running around between meetings, this extra security is pretty clutch—no more worrying about your pump sliding around or falling off.

• Eufy E20 wearable breast pump uses silicone too, but it's a bit rougher feeling than the M9's. That's because it's designed to work better with the heating feature, but it's still way more comfortable than plastic and flexible enough for most people.
• Willow Go wearable breast pump went with plastic flanges, and let's be honest—they're not doing you any favors in the comfort department. If you're pumping multiple times a day, this difference really adds up.

Hygiene and Storage Features

Here's something you might not think about until you need it: the M9 comes with caps for the flanges. Sounds minor, but when you're shoving your pump in a work bag or setting it down in random places, those caps actually keep things clean and protected. Neither the Willow Go nor Eufy thought to include this, which is kind of a missed opportunity.

Leak Prevention

The Willow Go takes leak prevention seriously with a splash guard that catches spills if you lean over or move around while pumping. It's not magic—you can still have accidents—but it definitely cuts down on the mess. The M9 comes equipped with a sensor that alerts you when it's nearing capacity, preventing you from losing any of your hard-earned breast milk.

4. Collection Cups, Parts, Cleaning, and Storage

How easy are these breast pumps to put together, take apart, clean, and store? This matters way more than you might think, especially when you're dealing with pump parts at 6 AM or trying to clean up quickly at work.

Assembly and Disassembly

• Willow Go offers the simplest assembly process. The collection cup detaches easily, the duckbill valve removes without difficulty, and the backflow protector integrates smoothly. You can also choose larger collection cups if you need more capacity. However, all parts must be completely dry before reassembly, as damp components can cause the duckbill valve to detach during use.
• Eufy E20 wearable breast pump provides relatively straightforward assembly. Users pull a small piece to access components, though the flange insertion can occasionally require extra attention to ensure proper fit.
• Momcozy M9 breast pump initially requires some familiarization - parts detach by pulling forward and twisting off the duckbill valve. Once users understand the mechanism, assembly becomes manageable. The collection cup includes a cap for sealing and refrigerator storage.

Cleaning on the Go

If you're pumping at work and need to clean quickly with wipes, the Willow Go is your friend - smooth surfaces, fewer crevices, easy to wipe down. The other two aren't terrible, but they have more nooks and crannies to deal with.

Storage Solutions

This is where things get interesting.

• The Momcozy M9 breast pump is the clear winner because those collection cups double as storage bottles with caps - pump, cap it, toss it in the fridge. Done.
• Willow Go components are not suitable for refrigerator storage. The motor should never be refrigerated as this can damage the device, and the collection cup alone lacks stability and may leak if disturbed.
• Eufy E20 wearable breast pump cups are not recommended for refrigerator storage due to the open spout design, which presents a risk of spillage if the container tips over.

Extra Parts and Value

• Here's where the Momcozy M9 breast pump really shines - you get a ton of extra stuff. Extra collection cups, extra caps, extra duckbills, and different insert sizes (17mm, 19mm, 21mm) right in the box.
• The Eufy E20 provides an extra set of duckbills for replacements.
• The Willow Go includes standard components and 2 sizes of flange without additional parts, requiring separate purchases for replacements or other sizes.

The Momcozy M9 breast pump offers the most practical storage and extra parts, the Willow Go is easiest for quick cleaning, and the Eufy falls somewhere in the middle. If you're someone who pumps multiple times a day or travels frequently, the Momcozy M9 breast pump's storage features and extra parts make a real difference in your daily routine.

5. Discretion: Noise Levels and Appearance

One of the biggest concerns for working moms is whether their pump will give them away. Noise levels and how noticeable each pump appears when worn can make the difference between pumping with confidence or feeling self-conscious at work.

Pump Thickness and Visual Discretion

Comparing the pumps side by side, Abbie noted their relative thicknesses. Technically, the Willow Go appeared to be the thinnest, suggesting it might offer the most discreet profile when worn. However, the Eufy was immediately ruled out as a discreet option due to its bulk. While the M9 wearable breast pump is slightly thicker than the Willow Go, Abbie found that both the Willow Go and M9 were equally discreet when she wore them in her bra.

Noise Levels

Regarding sound, Abbie reported no significant difference among the pumps. A quick test confirmed this:

• Willow Go: On stimulation mode, produced a quiet sound.
• Momcozy M9: Also very quiet.
• Eufy: Started off noticeably louder.

Despite the Eufy's initial loudness, Abbie found the Willow Go and Momcozy M9 very comparable in noise. While the Willow Go might be marginally quieter, she has successfully worn both the Willow Go and M9 wearable breast pump around people without them realizing she was pumping. In an office setting, her co-workers remained unaware unless she was actually pouring out her milk. For those seeking highly discreet pumps for office use, Abbie assured that one cannot go wrong with either the Willow Go or Momcozy M9 breast pump.

6. Practicality: Carry Cases and Accessories

When you're juggling work and pumping, having the right storage and accessories can make all the difference. A good case keeps everything organized and protected, while the right accessories ensure you're prepared for any situation.

Case Features Comparison

The availability and design of carry cases vary significantly between these pumps, affecting how easily you can transport and organize your equipment.

The Momcozy M9 hands-free breast pump comes with more storage features included, while the other pumps require additional purchases or upgrades for comparable organization.

Included Accessories Breakdown

What comes in the box can significantly impact your overall investment and convenience, especially when replacement parts are needed.

The Momcozy M9 hands-free breast pump includes more accessories in the base package, while the Willow Go includes fewer extras at a higher price point.

As Abbie noted, the only thing none of these cases can accommodate is a dedicated milk cooler, but most portable coolers resemble regular water bottles anyway, making them easy to carry alongside your pump case. The Momcozy M9 hands-free breast pump emerges as the most practical choice for working mothers who need complete organization and backup supplies, while the Willow Go suits those prioritizing portability over storage capacity.

7. Price Comparison and Recommendations

Price is often a deciding factor when choosing a breast pump, especially when you factor in what's actually included versus what you'll need to buy separately. Abbie noted that prices can fluctuate, but provided typical retail values to help with comparison.

Price Points

• Momcozy M9: Typically retails for approximately $240 to $270.
• Eufy E20: This lower-end version of the Eufy pump usually retails around $199.99. She had seen it priced even lower than $199.99 at times, and at the time of her video, it was on sale for $170. This indicated that Eufy products frequently go on sale. If you're looking to upgrade to the S1, that's priced at about $240 retail value, and there wasn't currently a sale running when the video was made. The S1 Pro, which comes with the charging case that many people really like, is priced at $350.
• Willow Go: Also priced at $350. Abbie pointed out that despite being the most expensive, the Willow Go does not come with any extra accessories or a case, which must be purchased separately.

Value and Practicality Ranking

Considering the price points and the included extras, Abbie ranked the pumps for overall value and practicality:

Top Choice: Momcozy M9

Abbie selected the M9 as her top recommendation, calling it the "best bang for your buck." Her reasoning included:

• Complete package: Comes with a large organizing case, extra collection cups, spare parts, and multiple insert sizes
• Storage solution: The case fits everything you need with room for additional accessories like cleaning wipes and nipple cream
• Competitive pricing: Mid-range cost but includes features typically sold separately by other brands
• Practical design: Features like refrigerator-safe storage and flange caps address real-world pumping needs

Abbie specifically recommended the Momcozy M9 breast pump for mobile pumping situations where organization and convenience matter most.

Second Place: Eufy E20

The Eufy earned second place in Abbie's evaluation, though she noted the E20 represents a "lesser model" compared to the S1 or S1 Pro versions. Key considerations:

• Lowest upfront cost: Most budget-friendly base price with frequent sales
• Heating feature: Unique warming capability that helped Abbie clear clogs
• Limited storage: Not suitable for refrigerator storage due to design constraints
• Upgrade path: S1 Pro offers charging case functionality, though with less storage space than the M9

Abbie suggested that a charging case feature would be valuable for other brands to adopt.

Third Place: Willow Go

Despite her long history with Willow products, Abbie ranked the Go last for value. Her assessment:

• Highest cost: $350 base price without case or extra accessories
• Separate purchases: Case, extra parts, and larger containers all cost additional money
• Established brand: Reliable performance but fewer included features compared to newer competitors
• Simple operation: Easy to clean and assemble, but limited customization options

Abbie emphasized that while she continues to appreciate Willow products, the value proposition doesn't compete well against the other pumps when considering what's included in the base package.

The M9 emerged as Abbie's clear preference for working mothers who want comprehensive features and organization without multiple additional purchases, while the pricing comparison reveals significant differences in what you get for your investment.

Why the M9 Won Over a Longtime Pumper

Abbie candidly admitted that she had never tried Momcozy products before the Momcozy M9 hands-free breast pump. With her son already a year old, she had been contemplating stopping pumping. However, the arrival of the M9 re-energized her, making the pumping journey "a little bit more exciting."

Abbie then showed a quick pump session from earlier that day, with a successful yield of 6.5 ounces after feeding her baby. This strong performance served as a practical demonstration, reinforcing why the Momcozy M9 breast pump was her top pick. She reiterated its advantages:

• Aesthetics: A "really pretty design."
• Comprehensive Case: An amazing case that offers additional parts and holds everything needed with extra room.
• Hygiene: Features dust caps to keep everything clean and sterilized while on the go.
• User-Friendly Features: Includes clear left/right switches and an integrated screen on the pump itself, which Abbie found "huge" for easily checking pumping duration without needing to consult the app.

To help other mothers who may lack a support system, Abbie shares her genuine experiences. She was initially skeptical of the M9's small 5oz capacity but found it to be sufficient. Ultimately, Abbie highly recommended the M9 as her top pick, expressing her hope that every mother can find the breast pump that's right for them.