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We Tried 5 Momcozy Pumps. Here’s What We Learned.
May 21, 2024

We Tried 5 Momcozy Pumps. Here’s What We Learned.

By Babylist Team
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We Tried 5 Momcozy Pumps. Here’s What We Learned.
We Tried 5 Momcozy Pumps. Here’s What We Learned.

Up until very recently, if you thought you might want to pump breast milk, you often had one of two choices:

  1. A traditional pump, which either plugs into the wall or can be battery-powered for portability, but can be quite bulky at 2–3 pounds.

  2. A wearable or portable pump, which is lighter weight and offers more flexibility, including some that go inside your bra (and barely noticeable under a shirt), but often at a $200+ price tag.

As someone who had an “if it happens, it happens” attitude around breastfeeding and pumping with my first child, I wasn’t too keen on shelling out several hundred dollars for an on-the-go solution. Instead, I used an insurance-covered breast pump (paying an extra $30 for a battery-operated version) and carried the kettlebell-shaped motor around if I needed to multitask while pumping. But after what I considered a successful 13-month breastfeeding and pumping journey with my first and baby number two on the horizon, I knew I’d want more portability this time around.

Enter Momcozy: their portable and wearable pumps have gone viral on TikTok, and start around $65 for one pump or $120–$199 for two. Since I had never tried anything but my traditional pump, I was curious just how powerful and comfortable they could really be at this price point. I asked Momcozy to send me five of their most popular pumps to compare and contrast and see what all the hype is about.

A note on how I tested these: I wanted to ensure a similar experience with each pump, so I tested each one for 3–4 sessions a day, over multiple days, in lieu of my traditional pump (I continued to breastfeed for the first and last feeds of the day). I used them while working from home, taking care of my kids, driving and even at a birthday party to see how they felt when I was moving around in different positions. Here’s what I found.

An Overview on Wearables vs. Portables

First, let’s clarify what I mean when I say wearable and portable. There are a few key distinctions between wearables and portables, especially with features that may be important for someone who pumps regularly—like pumping strength, discretion, portability and ease of use.

Portable pumps: You can think of these as a smaller version of a traditional pump; there’s still a separate motor and tubing, but they’re often much smaller and lighter (less than a pound) and can fit in your pocket or clipped on your waistband. The design of portables also varies:

  • Regular flanges with bottles for collection cups (this is most similar to a traditional pump, just with a smaller motor)

  • In-bra flanges and collection cups—similar to wearables, but with a separate motor—that can be easier to use when moving around.

Wearable pumps: The parts for wearable pumps connect without tubing, so they are truly hands-free. While how much they protrude and weigh varies among brands, there are essentially two silhouettes:

  • A rectangle-shaped motor that sits on top of a collection cup.

  • A rounded half-circle motor that forms a breast-like shape when placed on the collection cup (this shape fits better in a bra, making it more discreet).

What to Know About Momcozy Wearable Pumps

Before we dive into specifics about the three wearable pumps I tried, here are a few things that they all have in common:

  • Comfier flanges: The soft and flexible silicone flanges and inserts on Momcozy pumps are noticeably more comfortable and flexible than the hard plastic ones of my traditional pump.

  • You can buy one or two: Momcozy’s wearable pumps are sold as a double or a single (aka you can pump on one side at a time or both), which is a budget-friendly option if you want to test the wearable waters or only use it occasionally to build up a milk stash.

  • Nine suction levels: The suction on all of the Momcozy wearable pumps felt more intense than my traditional pump, so I was only able to go up to level six comfortably —and that was after a few sessions of getting used to them.

  • No smartphone app: Some pricier wearables pair with a smartphone app to remotely adjust the pump settings, but Momcozy’s pumps need manual adjusting. This means that to change the stimulation and expression settings, adjust suction levels or see how long you’ve been pumping, you’ll have to move the neckline of your shirt or wear it with a tank top for easier access.

S9 Pro and S12 Pro

S pro

These top-motor wearable pumps look pretty indistinguishable from one another (and are priced accordingly). The S9 Pro is $64.99 for single and $119.99 for double, while the S12 Pro is $74.99 for single and $139.99 for double). Both allow you to pump hands-free but have a motor that sticks out on top, which can feel a bit cumbersome. But you can remove the motor when you’re done pumping and the collection cup can stay in your bra without spilling (which comes in handy if you’re doing something like driving). I found the output on these two pumps to be close to, but a bit less, than what I would get with my traditional pump.

What the S9 Pro has that the S12 Pro doesn’t:

  • Included silicone flange inserts for smaller nipples in sizes 17/19/21mm to pair with the 24mm flange
  • Auto shut-off after 30 minutes
  • Longer battery life (S9 Pro: 270 minutes vs. S12 Pro: 240 minutes)

What the S12 Pro has that the S9 Pro doesn’t:

  • Double-sealed flanges for a more secure and comfortable fit
  • Mixed mode (a combo of expression and stimulation modes)
  • Faster charge (just over 2 hours vs. 2.5 hours for the S9 Pro)
  • Timer to see session length
  • Smaller & quieter motor

M5 All-in-One


Unlike the S9 and S12 pro models, the motor and milk collector of the M5 ($119.99 for single, $199.99 for double) form a rounded shape that looks less noticeable in-bra (give or take a few cup sizes), and it comes with dust protectors for each side and a convenient carrying case. The M5 has a 4-ounce cup capacity, which is smaller than other lookalike pumps, while the S9 Pro and S12 Pro can hold up to 6 ounces on each side—something you may need to consider if you have an oversupply.

A few noteworthy features:

  • No-guesswork assembly: The flange and collector each have heart icons that overlap to show a secure fit.
  • Included inserts: The pump comes with 24mm and 27mm flanges and 17, 19 and 21mm thin inserts that rest seamlessly against the flange both on and off the breast.
  • Quick charge: The M5 fully recharges in just two hours, with close to a two-hour battery life. You can’t use the pump while it’s charging though, so that may be something you need to plan around if you plan on using it multiple times in a day.
  • Status check: While the screen doesn’t keep the timer or levels lit, you can press any button to see them without adjusting the settings. This was a nice feature compared to some of the other Momcozy pumps that would adjust the settings if you pressed a button to check your timing or suction level.

What to Know About Momcozy Portable Pumps

The Momcozy V1 and V2 portable pumps have the same in-bra collection cups, flanges, diaphragm and valves, but have very different motors. The tubing attaches to the top of the cups (inside the bra) vs. the bottom like other portables. While this means they may be visible under a shirt, they’re still more discreet and usable in public than the protruding flanges with bulky bottles or collection cups of a traditional pump or other portables around the same price point.

Momcozy 3


The V1 motor is about the size and weight of two hockey pucks, and labeled hospital-grade to signify stronger suction (though heads up: hospital-grade isn’t a clearly defined or regulated term, so it can mean different things for different pump manufacturers). The S9 Pro and S12 Pro are also labeled hospital-grade, but I found the V1 to be less powerful than those two wearable options. While the motor on this pump is smaller than a traditional pump motor due to the size and shape, I found that it wasn’t exactly portable in the sense that I could put it in my pocket to carry around and be hands-free. It also has a sensitive touchscreen control panel, and there were a few times I accidentally touched the motor and changed the settings when trying to multitask while pumping.

That said, the V1 is a great option for people who like the strength of a traditional pump (it has a similar vibrating suction), but want a smaller motor—a notable plus if you commute to work and don’t want to tote around a bulky pump.


Think of this portable pump as a combo between the M5 wearable pump and a traditional pump. While the cups are a bit larger than the M5 and more oval than round, they can still fit inside a bra (though a bit bulky). Not only does the motor weigh less than half of the V1, but it’s easier to carry around and go hands-free: It’s about the length of an iPhone and can easily fit in the stretchy side pocket of leggings or clip on your waistband.

Two more features that differentiate the V2 from the V1:

  • Longer session before auto-shut off (30 minutes vs 25 minutes)
  • More battery life (180 minutes vs 150 minutes)

An Overall Takeaway

Considering their price points, Momcozy wearable and portable pumps are a solid choice when it comes to convenience and comfort (I really liked those softer silicone flanges), and I found the M5 to be the standout of the Momcozy wearable lineup. While I did get slightly less output than with my traditional pump and the S9 Pro and S12 Pro wearable models, the M5 was the quietest of the three, and the wearable I’d feel most comfortable using in public.

However, the V2 pump was my overall favorite of the five I tried for its combination of discreteness, output and easy-to-adjust settings. The portable V2’s cups felt a bit larger than the wearable M5 and the motor was a bit noisier, but I liked that I could reach down and touch the motor to adjust the settings vs. reaching into my shirt, and I got a stronger output with this portable than with the wearables.

So if you’re looking for a wearable or portable pump but can’t see yourself spending $200–$600 (or already used your insurance coverage on a traditional pump), these make great on-the-go additions to your pumping tool kit. They may not have the tech features or slim profile of some of the more expensive models and aren’t dishwasher-safe like many of those, but if you’re looking for a comfortable wearable or portable, Momcozy pumps are a smart option that get the job done for a fraction of the price of similar-looking breast pumps.

This article is sponsored by Momcozy. Babylist’s free site, apps and emails are made possible by our sponsors. We limit our sponsored content to relevant partners that offer products and services we believe in and use ourselves.

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