Polar Grit X2
62 g with sapphire glass and a MIL-STD-810H rating. GPS runs 30 h, the same as the lighter Vantage M3.
What the maker states
| GPS battery | 30 h, Performance training mode |
|---|---|
| Smartwatch battery | 7 days, Smartwatch mode |
| Weight | 62 g, With wristband |
| Case | 44.7 mm |
| Water rating | WR50 |
| Display | 1.28 in AMOLED, 416 x 416 |
| Satellite systems | GPS, GLONASS, Galileo, BeiDou, QZSS; dual-frequency |
| Heart rate sensor | Optical, Elixir, OHR Gen 4 |
| External sensors | Bluetooth |
| Training metrics | Training Load Pro, Energy Sources, running power, Hill Splitter |
| App | Polar Flow |