Best Hands Free Breast Pump: Elvie vs Willow vs Momcozy (2022) (2022)

Hands free breast pumps can offer new moms amazing freedom! There are now a few wireless breast pumps on the market, and it’s hard to know which to choose – Elvie vs Willow vs Momcozy. Here are how the pumps compare so that you can choose the best hands free breast pump for you!

Best Hands Free Breast Pump: Elvie vs Willow vs Momcozy (2022) (1)

This post may contain affiliate links, which means that if you click through and make a purchase, I’ll be compensated at no additional cost to you. I only recommend products I love! More info here.

(Updated April 2022: Willow came out with a new pump called with Willow Go. This post refers to the Willow 3.0, but you can read more about the Willow Go here.)

Wireless vs Hands-free Breast Pumps

The Elvie, the Willow, and the Momcozy are wireless breast pumps that you place into your nursing bra.

Best Hands Free Breast Pump: Elvie vs Willow vs Momcozy (2022) (2)

In fact, when you buy a double pump, you are actually buying TWO pumps, one for each breast. They aren’t connected at all and can work independently – you can pump on one side or both sides using these pumps.

There are some hands-free breast pumps that are not wireless, such as the Freemie Liberty (it fits in your bra but does have tubing and an external pump motor), but this article focuses on the best wireless breast pumps.

Elvie vs Willow vs Momcozy – The differences

Below are the major differences between the Willow, Elvie, and Momcozy pumps at a glance. The Elvie and Willow have more features, but the Momcozy is much more affordable.





Storage Capacity

(Video) Momcozy Vs. Elvie Vs. Willow Portable Breastpump Review || Is it too good to be true?

5 oz (150 ml) bottles

4 oz (120 ml) bags or reusable container





21mm, 24mm, and 28mm

21mm, 24mm, and 27mm

24mm and 27mm, with inserts for 17mm, 19mm, and 21mm

Pump Parts to Clean


2 (3 if you use the container)



(Video) MomCozy VS Elvie | Wearable breast pump comparison

Available for iOS and Android

Available for iOS and Android

No app





Takes about 2 hours to charge; charge lasts for 2.5 hours of pumping

Takes about 2 hours to charge; charge lasts for about 5 pumping sessions

Takes 2 hours to charge, lasts for about an hour


Email support

Support via call or text during business hours

Call or email during business hours

(Video) MOMCOZY WEARABLE BREAST PUMP S9 HONEST REVIEW & DEMO | Better than Elvie and Willow breast pumps?


Two years on pump; 90 days on pump parts

One year from purchase date; 90 days on pump parts

7 days

Here is a little more detail on these differences.

Milk Containers

One of the bigger differences is what you pump into:

  • With the Elvie pump, you pump into a reusable 5oz bottle.
  • When you pump using the Willow, you can pump into either a reusable container or into one of their proprietary bags. Both the bags and the container hold 4oz. The bags cannot be reused.
  • With the Momcozy pump, the milk flows into a reusable collection cup that holds 6oz.

Best Hands Free Breast Pump: Elvie vs Willow vs Momcozy (2022) (3)

If you pump more than the bag or bottle holds, the Elvie and Willow will automatically stop to allow you to change out the bag or bottle, so you don’t have to worry about overflowing. You can then switch it out and keep pumping.

The Momcozy breast pump does not stop when it’s full, so you may need to check it periodically.

Spill-Proof Pumping

If you’re exclusively pumping and decide to get a Willow, I would recommend buying the reusable milk container, as just using the bags will get expensive. For example, if you pump 5 times a day, you’d need 10 bags per day, or about 300 per month. This amount of breast milk bags will cost you over $100 every month.

However, SOME bags may come in handy, as they are spill-proof.

The Elvie bottles, the Willow reusable containers, and the Momcozy collection cups may leak if you bend over. Having the option to pump into bags means that when you need to, you can pump lying down, while cleaning, etc.

(Many nurses and doctors in our Facebook group pump using the Willow because they are able to bend over and care for patients while pumping.)

Breast Shield Sizes

Elvie offers the following flange sizes:

  • 21mm
  • 24mm
  • 28mm

The 24mm and 28mm come with the pump; if they don’t fit and you need the smaller size, you can order the 21mm.

Willow offers:

  • 15mm, 17mm, and 19mm flange fit inserts
  • 21mm (with the reusable container)
  • 24mm
  • 27mm

Sizes other than the ones listed are not supported for either pump.

Momcozy offers:

  • 17mm, 19mm, and 21mm flange fit inserts
  • 24mm
  • 27mm

The 24 mm flange comes with the pump; the others are available separately from the website.

It’s critical to make sure that you will fit one of the sizes for the pump that you choose! It may be difficult or impossible to return an opened pump, and pumping with the wrong size breast shield can damage your nipples.

You can review Willow’s sizing chart here, Elvie’s here, and Momcozy’s here.

Wearing Wearable Breast Pumps on the Go

Both the Elvie and the Willow can be worn out of the house without being obvious.

One mom in our Facebook group has a Willow, Elvie, and a Freemie, and took photos of herself without a pump and then with each of them. You can see how they compare below:

Best Hands Free Breast Pump: Elvie vs Willow vs Momcozy (2022) (4)

The Momcozy is a little more conspicuous because the motor and battery hub is on top of the collection cups outside the bra.

(Idaho Jones makes a great case for wearable pumps as well as a special backpack that you can use to take your pump on the go. You can get 10% off with the code EPUMP.)

Pump Maintenance

The Elvie pump has 5 parts to clean – valve, spout, bottle, seal, and breast shield. They can be washed by hand or on the top shelf of the dishwasher. Pump parts should be completely dry before using again.

(Video) A VERY Honest Elvie Breast Pump Review | @More Serein

Elvie’s pump parts can be sterilized using boiling water, a microwave steam bag, or the dishwasher.

Willow has two parts to clean, the flange and a tube that connects to the pump. These can also be washed by hand or on the top rack of the dishwasher. (If you use the reusable milk container, that adds a third part.)

Willow recommends not using a microwave sterilizer bag to sterilize their pump parts. They can be sanitized using a dishwasher, a countertop sterilizer, or boiling water.

Momcozy has 5 parts and is dishwasher-safe.


Elvie and Willow both have apps that are available for iOS and Android. You can download them from the app store and connect your pump.

Using the apps, you can see how much you’ve pumped, and track pumping output over time for each breast. Elvie’s app also allows you to control the pump.

The Momcozy does not have an app.


Elvie claims to be “silent,” while Willow states that it is “quiet.”

Momcozy is on the louder side.


Both the Elvie and Willow pumps take about 2 hours to fully charge.

Elvie’s charge will hold for about 2.5 hours of pumping, while Willow says that it lasts for about 5 pumping sessions.

One of the comments notes below that, with the Willow, you may want to buy an extra charger, since you have to charge two pumps, and only one is provided with the pump. (If you buy a double pump, the Elvie comes with two charging cords.)

The Momcozy pump lasts about an hour and takes 2 to fully charge.

Customer Support

Elvie offers support via email (

Willow offers customers support via phone or text (1-888-WILLOW-3) during business hours.

Momcozy offers phone (1-855-322-1777) and email ( support.

Opened pumps may be difficult to return. However, retailers like Target or BuyBuyBaby may accept a return under certain circumstances, so you may want to check return policies before buying.


Elvie offers a two year warranty on the pump and 90 days on the pump parts.

Willow’s warranty is one year from purchase, and they also cover the accessories for 90 days.

Momcozy’s warranty is 7 days.

Wireless Breast Pump Prices and Insurance Coverage

The latest version of both the Elvie and the Willow are similarly priced at around $500 for two pumps. Two Momcozy pumps are about $120. (Most people will want to double pump, and therefore will need one pump for each breast.)

If you have health insurance in the United States, you should be entitled to one breast pump, at no cost, per pregnancy.

However, exactly what type of pump that a policy covers can vary a lot. Some policies will cover the rental of a hospital-grade pump, others will cover a double electric pump, and some will just cover a manual pump.

Most policies will not cover these pumps – but that doesn’t meant that you necessarily would have to pay the full cost out of pocket if you decide to get one.

Options that you can look into include:

  • Upgrading your covered pump. Aeroflow Breastpumps stocks both the Elvie and the Willow, and you may be able to get it at a discounted price through them. If you haven’t gotten your pump through insurance yet, fill the linked form and see if you can get one at a discount.
  • Getting your pump partially covered out-of-network by your insurance.
  • Using your FSA or HSA (if you have one) to pay for your pump. Breast pumps are medical devices and generally eligible for reimbursement.
  • If you want to try a wireless pump, but are worried about how you’ll respond to it and or that you might like a different one better, one option is to just buy one pump and see how you like it. You can always get the second pump later if you love it.

So those are the differences between the Elvie,Willow, and Momcozy – which do you think is the best hands free breast pump currently on the market? Let us know what you think if you’ve tried one!

Use the code WILLOWGO-EP to get the Willow Go for $299 through 8/31/22!



Is the willow or Elvie better? ›

Both Elvie and Willow are relatively easy to clean, with the same total number of parts, but Willow parts are a little larger and, therefore, easier to keep track of and sanitize. (The 3.0 model has even fewer parts to clean, since you pump directly into a storage bag or separate container.)

Is Willow or Elvie more comfortable? ›

Long answer: They're extremely comparable and I really think you can't go wrong with either one. I felt like the Elvie was slightly less comfortable, but definitely more silent! Compared to the Willow, it was also a bit easier to assemble IF you didn't know how to assemble the Willow.

Which is more discreet willow or Elvie? ›

The Elvie is a PERFECT for you if:

you're budget friendly (you don't have to buy additional bags/containers and there's the option to purchase only 1 side) or you'll be pumping around others since it's quieter and more discreet than the Willow.


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