EXPLORE BY SETUP

Wearable & in-bra breast pumps

In-bra describes where milk collects. It does not tell you whether a pump has an external motor, tubing, or the right fit for you.

Look beyond the collection cups.

These pumps collect inside the bra and use rechargeable motors. The main layout difference is whether the motor sits inside each in-bra unit or connects to the cups through tubing.

US configurations; seller packages may differ. Each row shows when that profile’s specifications were checked.

6 documented US setups
Pump & source	Motor and tubing	Exact model reminder
Elvie Stride 2 Elvie source ↗Checked October 8, 2026	Separate motor hub; external tubing	Stride 2 has an external hub. Single and double packages have different contents.
Willow Go Willow source ↗Checked September 17, 2026	Motors inside the in-bra units; no external tubing	This is Go. Tube-free does not mean leak-proof in every position.
Momcozy M5 Momcozy source ↗Checked September 17, 2026	Motors inside the in-bra units; no external tubing	Original M5 has physical controls and no app connection; M5 Smart is different.
eufy Wearable Breast Pump S1 eufy source ↗Checked September 17, 2026	Motors inside the in-bra units; no external tubing	Plain S1 includes a storage bag; do not assume the S1 Pro charging case is included.
Lansinoh DiscreetDuo Flow Lansinoh source ↗Checked September 24, 2026	Motors inside the in-bra units; no external tubing	Flow is the updated model. Original DiscreetDuo parts are not assumed interchangeable.
Medela Freestyle Hands-free Medela source ↗Checked September 24, 2026	Separate motor hub; external tubing	External rechargeable motor and cup kit; not Freestyle Mini, Flex bottle kit or fully integrated InBra.

Compare two pumps in detail →

Starts with the first two listed above. Change either model in the comparison.

Three questions before you choose.

The FDA choosing guide encourages considering your use, available time, assembly, cleaning and fit. Apply those questions to the exact setup.

Where would you carry the motor?

Elvie Stride 2 and Medela Freestyle Hands-free have a separate motor and tubing. Willow Go, original Momcozy M5, eufy S1 and DiscreetDuo Flow put motors in the in-bra units. Allow space for the cups in your bra and, where needed, somewhere to carry the motor and route the tubes.

How will you move while pumping?

Consider the bending and changes of position your activity involves, along with how full the cups may get. Willow Go, for example, is not fully leak-proof. Each model has its own movement and fill limits; a tube-free layout still needs attention to both.

What happens after you finish pumping?

Map out milk transfer, disassembly, washing, drying and charging as separate steps. In-bra collection does not remove those tasks. Check which pieces can get wet and which must stay dry; the instructions for one model may not apply to another. Review included sizing and replacement parts before comparing the complete cost.

Read the differences in context.

HEAD TO HEAD

Willow Go vs Elvie Stride 2: tube-free or external hub?

Compare Willow Go and Elvie Stride 2 by motor placement, collection, fit options, and practical trade-offs with source-linked specifications.

See the differences →

Get to know the 6 options.

Elvie Stride 2 double collection cups connected by tubing to a separate control hub.

In-bra electric

For more freedom to move

Elvie Stride 2

In-bra collection cups connect by tubing to a separate rechargeable hub, with hub controls and an app connection.

Get to know this pump

Two Willow Go pumps resting on a patterned fabric surface.

Tube-free wearable

For a tube-free setup

Willow Go

The motors and collection containers sit inside your bra, with no external tubing or hub.

Get to know this pump

Two original Momcozy M5 wearable pumps beside their cream storage case.

Tube-free wearable

For controls on the pump

Momcozy M5

The original M5 combines in-bra motors and collection with physical controls, without an app connection.

Get to know this pump

Plain eufy S1 pair with storage bag, charging accessories and sizing inserts arranged beneath.

Tube-free wearable

For adjustable heating and app controls

eufy Wearable Breast Pump S1

An integrated wearable with adjustable flange heating and app control; the plain S1 kit comes without the Pro charging case.

Get to know this pump

Two Lansinoh DiscreetDuo Flow pumps standing on a beige display

Tube-free wearable

For in-bra controls and a night light

Lansinoh DiscreetDuo Flow

DiscreetDuo Flow combines in-bra motors and collection cups with physical controls and a built-in night light.

Get to know this pump

Medela Freestyle Hands-free motor and two collection cups, with tubing omitted from the product shot

In-bra cups with an external motor

For in-bra collection with a pocket motor

Medela Freestyle Hands-free

Freestyle Hands-free places the cups inside the bra and keeps the rechargeable motor separate, joined by tubing.

Get to know this pump

Plan more than the purchase.

Check fit, understand the cleaning steps, and compare the total for the collection kit and any extras you need.

Understand flange fit →Plan the cleaning routine →Compare complete costs →

Sources & further reading

Category guidance checked September 17, 2026; product specification dates are shown in the table. Follow each profile for its complete source list. Product packages and guidance can change.