Meet the Other Phone. Flexible and made to last.

Meet the Other Phone.
Flexible and made to last.

Buy now

Momcozy M6 Breast Pump review: an exclusively breastfeeding mum's honest verdict

With a stronger motor, larger bottle capacity, and longer battery life than its predecessor, the M5, the new M6 Breast Pump is, according to manufacturer Momcozy, 'best for new mums' - so we had new parent Ally put it to the test.

By Jenny Wonnacott | Last updated Oct 27, 2025

Our writers test and research products independently. When you buy through a link on our site we may earn a commission, but we’ll only ever publish an honest review. Find out more.

Mumsnet Badge momcozy m6 review image featuring stock image of the pump and the pump in testing

Price on writing: Single: £130, Double: £230

Overall rating:
What we like
  • Longer battery life (lasts 5 - 6 sessions vs. the M5's 4 - 5)

  • Quiet (under 48dB) - quieter than Ally's Medela Swing

  • Strong suction - up to 295 mmHg, close to the Elvie Stride 2 (300 mmHg) and Spectra S1 (320 mmHg)

  • Larger bottle capacity: 180ml vs. the M5's 160ml

What we don't like
  • Expensive: £300 for a double pump, though good value vs. similar models.

  • Not fully discreet: noticeable when worn ("extra bulge – think Dolly Parton!")

Key specs

Price on writing: £130 single, £300 double | Single or double pump?: Both available, we tested the double | Suction range: 0 - 295 mmHG | Power source: Battery | Number of settings: 3 speeds, 9 vacuum levels | Closed system?: Yes | BPA-free?: Yes

Read next: Find more of the best wearable breast pumps and overall best breast pumps with our comprehensive guides

Our verdict

  • Performance: 13/15

  • Quality and durability: 13/15

  • Ease of use: 13/15

  • Value for money: 12/15

  • Comfort and fit: 8/10

  • Noise level and discretion: 7/10

  • Battery life: 9/10

  • Hygiene and cleaning: 9/10

Overall score: 84/100

Our tester Ally really rated the Momcozy M6 for its features, its comfort and efficiency, saying it compared very well with other pumps. While the pump is not particularly discreet, Ally liked its hands-free functionality, saying it made a huge difference to be able to go about her day while pumping at the same time.

"Overall, I found the pump very useful. I think my favourite feature is the timer - it means I can just put it on and I don't think about it again until it's finished! It's comfortable and efficient and compares favourably with the Medela Swing. I think it offers good value for money when compared with other similar pumps."

How we tested the Momcozy M6 Breast Pump

Mum-of-one Ally tried out the Momcozy M6 Breast Pump over a testing period of two and a half months. As an exclusively breastfeeding mum, Ally mostly used the pump to help her build up a supply of spare breastmilk to freeze for her baby daughter, who was aged between one and four months at the time of testing. During the testing timeframe, Ally took careful notes on how well the M6 performed, including ease of use, efficiency, noise levels and discretion. Having also used a Medela Swing Double Electric Breast Pump, she was also able to directly compare the performance of the two pumps side by side.

Related: The best changing bags (which are actually stylish!)

What's included with the Momcozy M6 Double Breast Pump?

  • 2x pumps with flange covers

  • Spare set of silicone valves

  • 2x charging cables

  • 3x different-sized flange inserts

  • Cardboard nipple measurer

  • Carry case with handle (which is "very neat and stylish!")

Read next: Our pick of the best baby bottles

Is the Momcozy M6 easy to set up and use first time?

"Yes, it came already set up and just needed to be charged before the first use."

"The pump includes a manual which is quite easy to follow regarding set up, cleaning and milk storage." -Parent-tester Ally

Related: We review the best sippy cups

How do you use the Momcozy M6 Breast Pump?

Once the Momcozy M6 pump has been charged and all parts cleaned and sterilised and reassembled, the pump simply fits over your breast (be sure to use the cardboard measurer to get the right flange size) within your bra. Ensuring your nipple is centered on the milk collector, you switch the pump on using the buttons at the top and select which mode and speed you require. Once done, you switch it off and remove.

"I am exclusively breastfeeding currently, and I use the pump once or twice a week to help build up a store of frozen milk. I use the 'standard' preset mode as I've found this to be the most effective for me."

Read next: Looking for a simpler option? Check out our pick of the best manual breast pumps

Is the Momcozy M6 Pump comfortable?

"It is comfortable once it is in the right position. I do have to re-adjust it sometimes, because if it’s not positioned correctly, it doesn’t collect milk. I have got into the habit of setting a five minute timer to check the milk is being collected, and if not, I re-adjust it." 

Related: Discover the best sterilisers

How hands-free is the Momcozy M6

real image of momcozy m6 breast pump in use, view from above of tester wearing the pump

"It’s light so it’s truly hands-free. I use a supportive bra designed for pumping which I think helps keep it in the correct position and ensures it’s closely attached to my breast."

Parent-tester Ally

Momcozy M6 Breast Pump

£230

Buy now from Amazon

Read next: The best highchairs for weaning your little one

Has the Momcozy M6 Pump ever leaked?

"No. Once it's in my bra I feel very confident moving around without it leaking. I feel like once it's in the correct position there is enough suction to keep everything in place."

How noisy is the Momcozy M6 Breast Pump?

"It isn’t very noisy and I could use it in an office or, more likely, in the car. Not sure I would use it out and about as it is quite bulky and it would be obvious." - Parent-tester Ally

How efficient is the Momcozy M6 Pump?

"I believe it is powerful enough, I don’t have a huge supply so I think it collects what it can (usually 50ml to 80ml per breast)."

Related: Feed your baby in comfort with one of the best nursing chairs and breastfeeding pillows

Is the Momcozy M6 heavy or awkward to wear?

"No, it’s not awkward or heavy. The rounded shape helps it fit nicely into my breastfeeding/pumping bra. I can wear a t-shirt over the top too."

How does the Momcozy M6 compare with other breast pumps you've used?

"My other pump was the Medela Swing Double Pump. I could move around, but the pump uses a tube and it would often get in the way. I can easily make tea, or something to eat, and use my laptop with the Momcozy. The Medela sometimes leaked and this one doesn’t. It is much quieter too and I don’t seem to notice the dreaded buzz of a pump anymore, which I did when I first started pumping with the Medela."

Read next: Our pick of the best nappy bins, according to real mums

How sturdy is the Momcozy M6 Breast Pump?

"It feels very sturdy and well-made. I wouldn't worry at all about it breaking, particularly if I were using the handy travel case!"

Related: Our pick of the best baby baths

How easy is the Momcozy M6 Breast Pump to clean?

"It's very easy - you just take the electrical part off, and then the milk collector part splits into individual pieces which are very easy to rinse and pop in the steriliser. It has never faded and still looks as good as new."

Read next: Check out our fully-reviewed guide to the best nappy rash cream

How discreet is the Momcozy M6?

"I scored the M6 three-and-a-half stars out of five for discretion because although it is comfortable and relatively quiet, it's still very obvious that I'm wearing it. You can't help but see the extra bulge on the chest - think Dolly Parton!"

"I can see it being very useful if you work from home, and I would perhaps use it if there was a private area to pump in the office. But I wouldn't use it in public." - Parent-tester Ally

About the author

Jenny Wonnacott has been working as a Content Editor for Mumsnet since 2022, with a particular focus on pregnancy, child and baby care product guides, articles and reviews. As a mum of three, Jenny has extensive hands-on experience in all of the Mumsnet content she writes about and is passionate about sourcing, reviewing and thoroughly researching the products that make every stage of parenting easier.

As a member of the core baby and child editorial team at Mumsnet, Jenny's area of expertise includes all things feeding-related, and she's published several breast pump reviews, guides and advice articles under this umbrella.

About Mumsnet reviews

All Mumsnet baby and child product reviews are written by real parents after weeks of research and testing. We work hard to provide honest and independent advice you can trust. Sometimes, we earn revenue through affiliate (click-to-buy) links in our articles. However, we never allow this to influence our coverage.