Momcozy M5 Smart vs Medela Motion InBra: The £100 Pump Has the App, the £109 One Goes in the Dishwasher

COMPARISON · FEEDING TIME

A single wearable pump is the one most parents actually end up using. It is not the main pump for exclusive pumping, it is the one that goes in your bra on the sofa while the baby feeds on the other side, or in the car before a meeting, or in the drawer at work for a quick top-up. At around £100 it is also the price point where the two biggest names in this category now sit almost side by side.

The Momcozy M5 Smart Single costs about £100 and the Medela Motion InBra Single about £109. On paper they look like the same product: cordless, cup-in-bra, nine suction levels, a few flange inserts in the box and a USB-C cable. Put them on for a fortnight and they turn out to be built around very different ideas of what makes pumping easier.

The Momcozy puts the controls on your phone. You can change mode and level without reaching into your top, and the app logs how much you pumped and when. The Medela has no app at all. What it has instead is a pump that switches itself from let-down to expression, buzzes if you lean forward far enough to spill, goes in the dishwasher and holds roughly twice as many sessions per charge.

So the real question is not which one pumps harder. Both sit within a few mmHg of each other. It is whether you would rather have data and remote control, or fewer jobs at the sink. We looked at the specs, the manuals and a lot of parent feedback on both to answer it.

Lil' Bubba's verdicts

• Best Overall: Medela Motion InBra Single · 8.5/10 - dishwasher-safe parts, a tilt alert and around 10 sessions per charge make it the easier pump to live with
• Best for Tracking Your Supply: Momcozy M5 Smart Single · 8.0/10 - app control and session logging for £9 less, with a bigger milk cup

Quick comparison

	Momcozy M5 Smart Single	Medela Motion InBra Single
Price (single)	About £100	About £109
Max suction	Up to 285 mmHg	Up to 300 mmHg
Modes / levels	3 modes (stimulation, expression, mixed), 9 levels	2-phase (auto-switches to expression), 9 levels
Weight	About 232g	About 250g
Cup capacity	Larger cup than the Medela	150ml
Battery	Claimed up to 6 sessions, parents report 4-5	Up to 10 sessions or 2.5 hours
Flange sizes in box	24mm + 17/19/21mm inserts	24mm + 15/18/21mm inserts
App	Yes, control and logging	No, on-pump buttons only
Cleaning	Hand wash milk-contact parts	3 parts, dishwasher and microwave steriliser safe
Noise	Noticeable in a quiet room	Rated at 45dB or under
Our rating

How we picked the 2

We started from the single wearable pumps BubsNest families add to their registries most often and filtered to ones sold by UK retailers we work with, currently in stock, from brands with proper spare-parts support. The M5 Smart is one of the most added pumps on the site that we had not yet put head to head, and the Motion InBra is its closest like-for-like rival on price and format.

For each pump we read the brand manuals and spec sheets, compared live UK pricing and pulled together a large body of parent feedback covering comfort, leaks, battery life, cleaning and how the pump behaves after a few months. We do not take free samples in exchange for coverage and the ratings are ours.

What to look for in a single wearable pump

Flange fit first, suction second. Almost every complaint about a wearable pump being painful or weak comes back to the wrong shield size. Measure your nipple after a feed, not before, and check which inserts come in the box. Both of these include three inserts plus a 24mm shield, but the sizes differ slightly: Momcozy goes 17/19/21mm, Medela 15/18/21mm. If you measure at 15mm or 16mm, that matters.

Count the parts you will wash. You might pump two or three times a day. A pump with three parts that go in the dishwasher saves real time compared with one where every milk-contact piece needs hand washing and a bottle brush.

Real battery life, not the box figure. Claimed session counts assume short sessions on low settings. Halve the gap between the claim and what parents report and you will be close. Also check whether the pump loses charge sitting in a drawer.

Controls you can reach. Once a cup is in your bra, the buttons are under your top. An app solves this; so does a pump that adjusts itself. Decide which you would rather rely on at 3am.

Noise and bulk. In-bra pumps are discreet, not invisible. A slightly thicker cup shows more under a fitted top, and motor hum carries in a quiet office or on a video call.

1. Momcozy M5 Smart Single / 10 · Best for tracking

The M5 Smart is the app-connected version of Momcozy's popular M5 cup. The pump itself is the same idea: a light cup with no tubes, a soft silicone "baby mouth" flange that is meant to feel more like a latch, and a small display showing mode, level and time. The difference is Bluetooth. Pair it with the Momcozy app and you can change settings from your phone, start and stop sessions, and see your output build up over days and weeks.

For a parent trying to protect supply after returning to work, or trying to see whether an evening session is worth keeping, that history is genuinely useful. And at around £100 for the single, it is a little cheaper than the Medela.

What parents love

• Control without reaching in. Changing level from your phone means no fumbling under your top in a meeting or the car park. One parent told us: 'I never touch the pump once it is on, I just turn it up from my phone when the milk slows.'
• Your output, logged. The app records each session so you can see patterns rather than guess. Useful if you are building a freezer stash or weighing up dropping a session.
• Efficient and comfortable. Parents regularly describe it as quick to get milk flowing and pain free once the flange size is right. A parent shared: 'It got the milk going faster than my old wearable and it never pinched.'
• Light and well equipped. At around 232g it is one of the lighter cups in this class, and the box includes three inserts, spare valves and a storage case.

What to know before you buy

• More hand washing. The milk-contact parts are hand wash only, and the smaller pieces are fiddly with a brush. Over months of daily pumping this adds up.
• Battery falls short of the claim. Momcozy claims up to six sessions per charge; parents more often report four or five. Fine for one or two sessions a day, less so for a full day away.
• Not the quietest. It is noticeable in a silent room, and the cup sits a little proud under fitted clothes. The cups also do not stand upright on a table.

Best for

• Parents returning to work who want to track a supply
• Anyone who wants to adjust settings without touching the pump
• Second-pump users topping up a stash once or twice a day
• Buyers who like data and do not mind hand washing

2. Medela Motion InBra Single / 10 · Best overall

Medela built its reputation on hospital and double electric pumps, and the Motion InBra is its answer to the in-bra cup. It deliberately skips an app. Instead, the pump runs Medela's 2-Phase Expression rhythm and switches itself from fast let-down mode to slower expression after two minutes or as soon as it senses milk flowing. In practice, most sessions are press start and leave it.

The rest of the design is about fewer chores: three parts to wash per cup, all of them safe in the dishwasher and microwave steriliser bags; a 105-degree wide shield shaped to avoid squashing breast tissue; a quiet motor rated at 45dB or under; and a battery Medela rates at up to 10 sessions. It also vibrates as a warning if you tip forward far enough to risk a spill.

What parents love

• Three parts, into the dishwasher. This is the feature parents mention most after a few weeks. We hear repeatedly from parents that: 'Rinse, dishwasher, done. I would not go back to scrubbing valves.'
• The tilt alert actually helps. A short buzz when you lean too far forward is a simple fix for the commonest wearable pump spill, picking something up off the floor.
• Hands-off rhythm. Because it moves from stimulation to expression on its own, you rarely need to reach in. Parents say it is comfortable once the right insert is fitted. One parent put it best: 'I set it to my level once and then just forget about it.'
• Twice the sessions per charge. Up to 10 sessions or about 2.5 hours means charging every few days rather than every night.

What to know before you buy

• No app, no log. If you want to track volumes you will be writing them down yourself.
• Drains in the drawer. Some parents find it loses charge if left unused for a while, so a backup pump in a work drawer needs topping up before use.
• Smaller cup, mixed suction reports. The 150ml cup can fill on a heavy morning session, and a minority of parents report suction that feels less consistent than a traditional plug-in pump. Some of the thinner plastic parts need careful handling.

Best for

• Parents pumping two or more times a day who hate washing up
• Anyone who wants a pump that adjusts itself
• Smaller nipple sizes, thanks to the 15mm insert
• Quiet offices, night feeds and video calls

What about the Elvie Stride 2 or Momcozy S12 Pro?

Both are good single wearables, but they solve different problems. The Elvie Stride 2 has a separate hub with tubing, which keeps the cups quieter and lighter, and the Momcozy S12 Pro is cheaper still with no app. We compared those two directly in Elvie Stride 2 vs Momcozy S12 Pro, and our wider round-up of wearable breast pumps covers double cups and premium options too.

How to choose

Choose the Momcozy M5 Smart if you want to see your supply in numbers, you like adjusting the pump from your phone, and you are happy to hand wash a few small parts. It is the slightly cheaper pump and the better one for anyone managing output closely, for example around a return to work.

Choose the Medela Motion InBra if you are pumping often and the washing up is what wears you down. Dishwasher-safe parts, a battery that lasts several days, a tilt alert and a pump that runs its own rhythm make it the easier everyday pump, and that is why it takes our Best Overall by a half point.

Whichever you pick, measure for the flange before you buy. The wrong size is the commonest reason a good wearable pump ends up in a drawer.

Add it to your Nest

Not sure yet? Add both to your free BubsNest registry and let friends and family chip in, or keep them on your list and compare prices across UK retailers as the due date gets closer.