Wear your Polar Vantage with your mechanical watch | Smartlet
Wear your Polar Vantage
and your mechanical watch
at the same time
Polar Vantage is the choice of serious endurance athletes - orthostatic test, HRV-based recovery metrics, precise VO2 max, advanced sleep staging. Your Omega or Breitling is a daily companion of a different order entirely. Smartlet One clips your Polar Vantage onto any mechanical watch strap via a 20mm adapter. Both watches occupy the same wrist without compromise. All Vantage sensors maintain full skin contact and continue to record accurately.
How it works
Classic, Shadow, or Titanium. Match your mechanical watch case material and aesthetic. No tools required at this stage.
Attach the Smartlet adapter to your watch lugs. The spring-loaded mechanism locks in place with zero metal-to-metal case contact. Fully reversible in seconds.
Attach the Smartlet adapter to your Polar Vantage. It locks securely. Both watches sit on the same wrist. All sensors remain in contact with your skin.
Polar Vantage models supported
| Series | Smartlet compatible | Lug width | Release year | Case size |
|---|---|---|---|---|
| Vantage M2 | Compatible | 22mm | 2021 | 45mm |
| Vantage V2 | Compatible | 22mm | 2020 | 47mm |
| Vantage V3 | Compatible | 22mm | 2023 | 47mm |
Mechanical watches worn with Polar Vantage
Other smartwatches
Frequently asked
Can I wear a Polar Vantage and a mechanical watch at the same time?
Yes. Smartlet One is a modular adapter that clips onto any mechanical watch via an 18mm to 24mm adapter, allowing you to simultaneously wear your Polar Vantage on the same wrist. Both watches operate independently. No modification required.
Which Polar Vantage models are compatible with Smartlet?
The Polar Vantage M2, V2, and V3 are all compatible with Smartlet. All three models use 22mm lugs and are supported natively without any adapter required.
Will Polar Vantage sensors still work when attached to Smartlet?
Yes. Polar Vantage uses a 10-LED optical heart rate sensor on the watch back. Smartlet maintains direct skin contact for this sensor throughout wear. SpO2, HRV, and all biometric readings continue to function normally.
Does Smartlet work with Polar Vantage V3?
Yes. The Polar Vantage V3 uses a 22mm lug width and is fully compatible with Smartlet. All sensors including the 10-LED optical heart rate sensor remain operational.