Smartlet One

One concept. Three different personalities

Wear your Polar Vantage with your mechanical watch | Smartlet

 

Key facts
Polar Vantage Vantage M2, V2, V3
18 to 24mm lug widths
All sensors fully operational
Zero case modification
No tools required
Fully reversible
Polar Vantage compatibility

Wear your Polar Vantage and your mechanical watch at the same time

Yes. Smartlet is compatible with the Polar Vantage M2, V2, and V3. Lug widths range from 20mm to 22mm - all natively supported. All sensors remain fully operational. No modification to the mechanical watch required. Fully reversible in seconds.

Polar Vantage is the choice of serious endurance athletes. Orthostatic test, HRV-based recovery metrics, precise VO2 max. Finnish engineering focused on physiology over gimmicks. Smartlet replaces your mechanical watch strap via the standard spring-bar system and positions your Vantage on the same wrist.

The problem
Choosing between health data and horological heritage every morning.

The solution
Smartlet replaces your mechanical watch strap and positions your Polar Vantage on the same wrist. Wear both simultaneously, without compromise.
Step by step

How it works

01
Replace your strap

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

02
Connect your Polar Vantage

Polar Vantage uses a standard 22mm lug and connects directly to Smartlet with no additional part. Smartlet replaces your mechanical watch strap via the standard spring-bar system. No modification to the mechanical watch.

03
Wear both simultaneously

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

All Polar Vantage sensors remain fully operational. All Polar Vantage health sensors remain operational with Smartlet. HRV-based recovery, orthostatic test, and VO2 max tracking maintain direct wrist contact.
Compatibility

Polar Vantage models supported

Model Smartlet compatible Lug width Release year Case size
Vantage M2 Compatible 22mm 2021 44mm
Vantage V2 Compatible 22mm 2020 47mm
Vantage V3 Compatible 22mm 2023 47mm
Vantage M2
22mm · 44mm
Compatible
Vantage V2
22mm · 47mm
Compatible
Vantage V3
22mm · 47mm
Compatible
Frequently paired

Mechanical watches worn with Polar Vantage

Also compatible

Other smartwatches

Questions

Frequently asked questions

Can I wear a Polar Vantage and a mechanical watch at the same time?+

Yes. Smartlet makes it possible to wear your Polar Vantage and a mechanical watch simultaneously on the same wrist. Smartlet replaces your mechanical watch strap via the standard spring-bar system and holds your Polar Vantage against the same wrist. Both watches run at the same time. All Polar Vantage health sensors maintain full skin contact and operate normally. You no longer have to choose between your health data and your mechanical watch every morning.

Which Polar Vantage models are compatible with Smartlet?+

All Vantage M2, V2, V3 models are compatible with Smartlet. The Polar Vantage uses a standard lug and attaches directly to Smartlet with no additional accessory. The setup takes under two minutes and requires no tools. Smartlet is compatible with any mechanical watch between 18mm and 24mm lug width, covering the vast majority of the market including Rolex, Omega, Tudor, TAG Heuer, Seiko, Breitling, and IWC.

Will Polar Vantage sensors still work when used with Smartlet?+

Yes, all sensors remain fully operational. Smartlet positions the Polar Vantage against your wrist with full skin contact maintained at all times. The following sensors continue to function normally: HRV-based recovery, orthostatic test, VO2 max, sleep tracking. There is no interference with the sensor array, and health data accuracy is unaffected.

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.