Whoop & Panther Eclipse on the same wrist

Whoop & Panther Eclipse on the same wrist

Yes. A Whoop 5.0 or MG and the Panther Eclipse both fit Smartlet One, on one strap: one on top of the wrist, the other underneath. The Whoop attaches with the Whoop 5.0 / MG adapter in the box; the Panther Eclipse with Smartlet's 18mm watch adapters, provided at order. Whoop 4.0 is not supported.
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Compatibility guide

Whoop & Panther Eclipse on the same wrist

Panther Eclipse + Whoop
Yes. A Whoop 5.0 or MG and the Panther Eclipse both fit Smartlet One, on one strap: one on top of the wrist, the other underneath. The Whoop attaches with the Whoop 5.0 / MG adapter in the box; the Panther Eclipse with Smartlet's 18mm watch adapters, provided at order. Whoop 4.0 is not supported.
Panther Eclipse
18mm watch adapters, at order
Whoop
5.0 and MG, not 4.0
Battery
Eclipse 14 to 15 days
Position
One on top, one underneath

Why trackers stack Whoop with the Panther Eclipse

The Whoop runs recovery and strain coaching from a fabric strap and pod. The Panther Eclipse takes the other route, a screen-less stainless steel tracker with no subscription and 14 to 15 days of battery, reading HR, HRV, SpO2, temperature and blood pressure, built around longevity.

Two philosophies on one wrist, each in its own position, no second band.

Can you wear a Whoop and a Panther Eclipse together on Smartlet?

Compatible
Yes. A Whoop 5.0 or MG and the Panther Eclipse both fit Smartlet One, on one strap: one on top of the wrist, the other underneath. The Whoop attaches with the Whoop 5.0 / MG adapter in the box; the Panther Eclipse with Smartlet's 18mm watch adapters, provided at order. Whoop 4.0 is not supported.
Panther Eclipse
One position
18mm watch adapters, at order
Whoop 5.0 / MG
Other position
Whoop 5.0 / MG adapter included
Sensors
Not certified in this position
By neither manufacturer
Reversible
Fully
No modification

Related compatibility guides

Smartwatch guide
Whoop
→
Smartwatch guide
Panther Eclipse
→
Use case
More than one wearable
→

More ways to wear Smartlet

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

Choose your Smartlet

Step by step

Replace your strap
01

Replace your strap

The watch adapters seat in your mechanical watch's lug holes in place of the spring bars. Classic, Shadow or Titanium. The spring bar tool is in the box.

Connect your wearable
02

Connect your wearable

Your smartwatch attaches to the central part of the bracelet with its own adapter (Apple Watch, Whoop, Fitbit, Galaxy or Pixel Watch) or a pair of standard watch adapters. Zero modification to the mechanical watch.

Wear both simultaneously
03

Wear both simultaneously

Both watches sit on the same wrist. The smartwatch sits underneath, against the skin; readings taken there are not certified by its manufacturer.

Questions

Frequently asked questions

  • Can I wear a Whoop and a Panther Eclipse together with Smartlet?
    Yes. Both are Smartlet-compatible, so one strap carries a Whoop 5.0 or MG and a Panther Eclipse together on a single wrist.
  • Which adapter does the Panther Eclipse use?
    Smartlet's 18mm watch adapters, provided when you select the Panther Eclipse at order. They work with every Smartlet One edition.
  • Which Whoop models work with Smartlet?
    Whoop 5.0 and Whoop MG are compatible. Whoop 4.0 is not supported.
  • Is Smartlet reversible?
    Yes. Remove either device and return to a single wearable any time.