Polar Grit X Pro: specs, who it fits and compatible phones
Polar Grit X Pro is a smartwatch released in 2021 that works with iPhone and Android. It lists Standard GPS, 10ATM and Sapphire.
Specifications
| Release year | 2021 |
|---|---|
| Case size | 47 mm |
| Display | MIP |
| Battery as listed | Up to 7 days · 40 hours of GPS (100 hours in saver mode) |
| Water rating | 10ATM |
| Glass | Sapphire |
| Case material | Stainless steel (Titan: titanium) |
| GPS type | Standard GPS |
| Offline maps | Yes |
| Operating system | Polar (RTOS) |
| Works with | iPhone and Android |
| Connection | None |
| Plan needed | None |
| Health sensors | SpO2, Heart rate |
Who it fits
- Works with iPhone and Android.
- Lists an exact water rating of 5ATM or higher.
How it compares
Closest models from Polar
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Polar Pacer Pro | 2022 | 45 mm | Up to 7 days · 35 hours of GPS (100 hours in saver mode) | 5ATM | Standard GPS | iOS and Android |
| Polar Ignite 2 | 2021 | 43 mm | Up to 5 days · 20 hours GPS | 3ATM | Standard GPS | iOS and Android |
| Polar Pacer | 2022 | 45 mm | Up to 7 days · 35 hours GPS | 5ATM | Standard GPS | iOS and Android |
Closest models from other brands
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Garmin Approach S12 | 2021 | 43.7 mm | Up to 10 days · 30 hours GPS golf | 5ATM | Standard GPS | iOS and Android |
| Amazfit Active | 2023 | - | Up to 14 days | 5ATM | Standard GPS | iOS and Android |
| Amazfit Active 2 (round) | 2025 | 44 mm | Up to 10 days | 5ATM | Standard GPS | iOS and Android |
Compared with Polar Pacer Pro, Polar Grit X Pro lists a higher ATM rating (10 against 5), an older release year (2021 against 2022) and Sapphire glass, where Polar Pacer Pro lists Gorilla Glass.
Compared with Polar Ignite 2, Polar Grit X Pro lists a higher ATM rating (10 against 3), a larger case (47 mm against 43 mm) and offline maps, which Polar Ignite 2 does not list.
Compared with Polar Pacer, Polar Grit X Pro lists a higher ATM rating (10 against 5), an older release year (2021 against 2022) and Sapphire glass, where Polar Pacer lists Gorilla Glass.
Compared with Garmin Approach S12, Polar Grit X Pro lists a higher ATM rating (10 against 5) and a larger case (47 mm against 43.7 mm).
Compared with Amazfit Active, Polar Grit X Pro lists a higher ATM rating (10 against 5) and an older release year (2021 against 2023).
Compared with Amazfit Active 2 (round), Polar Grit X Pro lists a higher ATM rating (10 against 5), a larger case (47 mm against 44 mm) and an older release year (2021 against 2025).
Only values listed exactly are compared.
Position in the catalog
Its case size of 47 mm is larger than 69% of 52 smartwatches with a single exact size. Its exact water rating of 10ATM is above 91% of 78 smartwatches with a single exact ATM rating. It was released in 2021. Among 128 smartwatches with an exact release year, 9% were released in 2021 or earlier and 96% were released in 2021 or later.
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