Samsung Galaxy Watch & Whoop on the same wrist

Samsung Galaxy Watch & Whoop on the same wrist

Yes. A Samsung Galaxy Watch with standard 20mm or 22mm lugs and a Whoop 5.0 or MG are both Smartlet-compatible. The Galaxy Watch mounts on the outer wrist; the Whoop sits on the inner wrist with full skin contact. Whoop 4.0 is not supported.
Explore
Forbes · CNET
|
300+ clients
|
35+ countries
|
CES 2026 · Lépine 2025
|
Patented
Compatibility guide

Samsung Galaxy Watch & Whoop on the same wrist

Samsung Galaxy Watch + Whoop
Yes. A Samsung Galaxy Watch with standard 20mm or 22mm lugs and a Whoop 5.0 or MG are both Smartlet-compatible. The Galaxy Watch mounts on the outer wrist; the Whoop sits on the inner wrist with full skin contact. Whoop 4.0 is not supported.
Galaxy Watch
20mm / 22mm lugs
Whoop
5.0 and MG, not 4.0
Adapter
Spring bar or mount
Sensors
Full skin contact

Why Galaxy Watch owners add a Whoop

The Galaxy Watch runs the screen, the apps and the Samsung Health picture. The Whoop runs silently in the background, reading sleep, recovery and strain.

Worn together they usually mean two bands. Smartlet carries both on one wrist, the Galaxy Watch outer, the Whoop inner.

Can you wear a Galaxy Watch and a Whoop together on Smartlet?

Compatible
Yes. A Samsung Galaxy Watch with standard 20mm or 22mm lugs and a Whoop 5.0 or MG are both Smartlet-compatible. The Galaxy Watch mounts on the outer wrist; the Whoop sits on the inner wrist with full skin contact. Whoop 4.0 is not supported.
Galaxy Watch 20/22mm
Outer wrist
Spring bar or adapter, supported
Whoop 5.0 / MG
Inner wrist
Dedicated mount, supported
Sensors
Full skin contact
Both devices
Reversible
In seconds
No modification

Related compatibility guides

Smartwatch guide
Samsung Galaxy Watch
→
Smartwatch guide
Whoop
→
Use case
More than one wearable
→

More ways to wear Smartlet

Apple Watch + Whoop
Apple Watch
→
Galaxy Watch + Fitbit Air
Fitbit Air
→
Galaxy Watch + Panther Eclipse
Panther Eclipse
→

Step by step

Replace your strap
01

Replace your strap

Smartlet replaces your mechanical watch strap via the standard spring-bar system. Classic, Shadow, or Titanium. No tools required.

Connect your wearable
02

Connect your wearable

Smartlet uses a dedicated adapter or native lug pins depending on your smartwatch. The connector snaps onto the Smartlet module. Zero modification to the mechanical watch.

Wear both simultaneously
03

Wear both simultaneously

Both watches sit on the same wrist. All smartwatch sensors maintain direct skin contact and operate normally.

Questions

Frequently asked questions

  • Can I wear a Samsung Galaxy Watch and a Whoop together with Smartlet?
    Yes, for Galaxy Watch models with standard 20mm or 22mm lugs, with a Whoop 5.0 or MG. Both sit on one strap, each in its own position.
  • Which Whoop models work with Smartlet?
    Whoop 5.0 and Whoop MG are compatible. Whoop 4.0 is not supported.
  • Which Galaxy Watch models are compatible?
    Galaxy Watch generations 1 through 7, including Active, Classic and Pro, mount natively via their standard 20mm or 22mm lugs. The Galaxy Watch 8, Ultra and Ultra 2 use Samsung's Dynamic Lug system and need a conversion adapter to standard lugs.
  • Is Smartlet reversible?
    Yes. Remove either device and return to a single wearable any time.