Omega Seamaster 300M & Whoop on the same wrist

Omega Seamaster 300M & Whoop on the same wrist

Yes. The Omega Seamaster 300M is compatible with Smartlet One, which includes a dedicated Whoop 5.0 adapter. The Seamaster mounts via its 19mm / 20mm / 21mm lug width; Whoop clips into the inner-wrist module with full skin contact, so HRV, strain, and sleep tracking remain fully operational.
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Compatibility guide

Omega Seamaster 300M & Whoop on the same wrist

Omega Seamaster 300M + Whoop
Yes. The Omega Seamaster 300M is compatible with Smartlet One, which includes a dedicated Whoop 5.0 adapter. The Seamaster mounts via its 19mm / 20mm / 21mm lug width; Whoop clips into the inner-wrist module with full skin contact, so HRV, strain, and sleep tracking remain fully operational.
Omega Seamaster 300M lug width
19mm / 20mm / 21mm
Whoop compatibility
5.0 / MG
Adapter
Dedicated Whoop 5.0 / MG adapter included
HRV accuracy
Fully maintained

Why swimmers and triathletes pair the Seamaster 300M with Whoop

Liquid error (sections/compat-combo-section line 172): metafield_tag can only be used with a metafield drop

Is the Omega Seamaster 300M compatible with Whoop on Smartlet?

Compatible
Yes. The Omega Seamaster 300M is compatible with Smartlet One, which includes a dedicated Whoop 5.0 adapter. The Seamaster mounts via its 19mm / 20mm / 21mm lug width; Whoop clips into the inner-wrist module with full skin contact, so HRV, strain, and sleep tracking remain fully operational.
Omega Seamaster 300M lug width
19mm / 20mm / 21mm Supported
Standard spring-bar system
Whoop model
5.0 / MG
Dedicated Whoop 5.0 / MG adapter included
HRV accuracy
Fully maintained
Inner wrist position
Reversible
In seconds
No modification to the watch

Related compatibility guides

Model guide
Omega Seamaster 300M
→
Brand guide
All Omega models
→
Smartwatch guide
Whoop compatibility
→

More ways to wear Smartlet

Omega Seamaster + Apple Watch
Omega Seamaster 300M
→
Omega Speedmaster + Whoop
Omega Speedmaster
→
Rolex Daytona + Whoop
Rolex Daytona
→

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

  • Does Whoop track swims accurately on Smartlet?
    Whoop maintains full skin contact in the inner-wrist position, which is what its optical sensors require. Strain and heart rate tracking continue through swim sessions as on the original band.
  • Which Seamaster references work with Whoop on Smartlet?
    References across 19mm / 20mm / 21mm lug widths are covered via the standard spring-bar system; the Seamaster 300M model guide lists every reference in detail.
  • Is the Whoop adapter included?
    Yes. Every Smartlet One ships with the dedicated Whoop 5.0 / MG adapter in the box, no separate purchase needed.
  • Does Smartlet damage or modify my mechanical watch?
    No. Smartlet replaces your standard watch strap using the existing spring-bar system. It makes no permanent modification to the watch case, lugs, or dial. The process is fully reversible in seconds. Your mechanical watch is unaffected and can be worn independently at any time by reinstalling its original strap. Smartlet is engineered to watchmaker tolerances and tested with the same care that goes into the watches it pairs with.