Whoop & Panther Eclipse on the same wrist

Whoop & Panther Eclipse on the same wrist

Yes. The Whoop 5.0 or MG and the Panther Eclipse are both Smartlet-compatible. The Panther Eclipse uses native 18mm connectors with no adapter; the Whoop uses its dedicated mount. Both keep full skin contact. Whoop 4.0 is not supported.
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Compatibility guide

Whoop & Panther Eclipse on the same wrist

Panther Eclipse + Whoop
Yes. The Whoop 5.0 or MG and the Panther Eclipse are both Smartlet-compatible. The Panther Eclipse uses native 18mm connectors with no adapter; the Whoop uses its dedicated mount. Both keep full skin contact. Whoop 4.0 is not supported.
Panther Eclipse
Native 18mm, no adapter
Whoop
5.0 and MG, not 4.0
Battery
Eclipse 14 to 15 days
Sensors
Full skin contact

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. The Whoop 5.0 or MG and the Panther Eclipse are both Smartlet-compatible. The Panther Eclipse uses native 18mm connectors with no adapter; the Whoop uses its dedicated mount. Both keep full skin contact. Whoop 4.0 is not supported.
Panther Eclipse
One position
Native 18mm, supported
Whoop 5.0 / MG
Other position
Dedicated mount, supported
Sensors
Full skin contact
Both devices
Reversible
In seconds
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
→

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 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.
  • Does the Panther Eclipse need an adapter?
    No. Its 18mm connectors are natively supported by 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.