Polar Loop: specs, who it fits and compatible phones
Polar Loop is a fitness tracker released in 2025 that works with iPhone and Android.
Specifications
| Release year | 2025 |
|---|---|
| Battery as listed | Up to 8 days |
| Case material | Sensor unit + textile band |
| GPS type | None |
| Operating system | Polar firmware |
| Works with | iPhone and Android |
| Connection | No cellular connection |
| Plan needed | None |
| Health sensors | HRV, Readiness score |
Who it fits
- Works with iPhone and Android.
- Lists a battery above the median of 6 listed fitness tracker models.
Overview
The Polar Loop (September 2025) is Polar's screen-free health band: no display, no buttons, just a sensor unit on a textile strap that automatically tracks heart rate, sleep, activity, training and recovery around the clock. Unlike rivals in this category, everything works without a subscription.
What it does well
- Fully automatic tracking. 24/7 heart rate, sleep, activity, training and recovery with nothing to press and nothing to start.
- No paywall. Free Polar Flow access with every feature included, where comparable screen-free bands charge monthly subscriptions.
- Up to 8 days of battery and four weeks of onboard memory, so it keeps recording away from your phone.
- Disappears on the wrist: a light sensor pod with S and M/L strap sizes.
Tradeoffs to know
- No screen means no glanceable stats, no notifications, no GPS: everything lives in the Polar Flow app.
- Water resistance is WR30: Polar rates it for bathing and swimming, but it is not a dive rating.
- If you want sport-watch features (maps, pace on the wrist, structured workouts), this is not that product.
Price and availability
$199.90 official launch price, with no ongoing subscription. The lack of a monthly fee is the real price story here.
FAQ
How is the Polar Loop different from subscription bands?
The hardware price is the whole price: every feature works in the free Polar Flow app, with no monthly fee for insights.
Can I see my stats on the band?
No. There is no screen; all data lives in the app.
Can I swim with it?
Yes. Polar rates the Loop's 30 m water resistance as suitable for bathing and swimming; it is not made for diving.
How it compares
Closest models from other brands
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Google Fitbit Air | 2026 | Not listed | Up to a week | Not listed | Not listed | iOS and Android |
| Fitbit Charge 6 | 2023 | Not listed | Up to 7 days | 5ATM | Standard GPS | iOS and Android |
| Google Fitbit Edge | 2026 | Not listed | Up to 7 days | 5ATM | Standard GPS | iOS and Android |
Compared with Google Fitbit Air, Polar Loop lists an older release year (2025 against 2026) and Sensor unit + textile band case material, where Google Fitbit Air lists Light polymer.
Compared with Fitbit Charge 6, Polar Loop lists a newer release year (2025 against 2023) and Sensor unit + textile band case material, where Fitbit Charge 6 lists Aluminum.
Compared with Google Fitbit Edge, Polar Loop lists an older release year (2025 against 2026) and Sensor unit + textile band case material, where Google Fitbit Edge lists Recycled aluminum case.
Only values listed exactly are compared.
Phone compatibility and plan
No plan is listed as needed.
Sensors and features are listed as the maker names them and are not medical measurements.
Related guides and lists
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Polar smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology