Device summary

Polar

Grit X2

Polar

Vantage M3

Full specifications

Full specifications
Basic information
Release year20252024
Starting price$520$433
Display size1.3-inch1.3-inch
Dimensions44.7 mm × 44.7 mm × 12.5 mm44.7 mm × 44.7 mm × 12.2 mm
Weight39 g35 g
Front materialSapphire GlassGorilla Glass
Back materialPlasticPlastic
Display
Display technologyAMOLEDAMOLED
Resolution416 × 416416 × 416
ProtectionSapphire GlassGorilla Glass
Performance
Storage32 GB32 GB
Expandable storageNoNo
Battery & charging
Charging standardProprietary / USB-C. Smartwatch mode up to 7 days; performance training (GPS + HR) up to 30 h; eco training up to 90 h (power-save — not everyday life). Complete watch 62 g with wristband; body 39 g withoutProprietary / USB-C. Smartwatch mode up to 7 days; performance training (GPS + HR) up to 30 h; eco training up to 90 h (power-save — not everyday life). Complete watch 53 g with wristband; body 35 g without
Battery typeLi-Pol (310 mAh)Li-Pol (310 mAh)
Connectivity
CellularGPS / GLONASS / Galileo / BeiDou / QZSS (dual-frequency), Offline full-color maps and route guidance, Polar Elixir™ (ECG GEN 1, SpO2 GEN 1, skin temp GEN 1, OHR GEN 4), Barometer; magnetometer compass; ambient light sensor, Polar FlowGPS / GLONASS / Galileo / BeiDou / QZSS (dual-frequency), Offline full-color maps and route guidance, Polar Elixir™ (ECG GEN 1, SpO2 GEN 1, skin temp GEN 1, OHR GEN 4), Barometer; magnetometer compass; ambient light sensor, Polar Flow
BluetoothBluetooth® LEBluetooth® LE
Build & durability
FramePlastic case; stainless steel bezelPlastic case; stainless steel bezel
Ingress protectionWR50 (50 m); MIL-STD-810HWR50 (50 m)

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Weight

    Vantage M3

    4 g lighter · minor difference

  • Thickness

    Vantage M3

    0.3 mm thinner · minor difference

  • Height

    Very similar height

  • Width

    Very similar width

Grit X2 vs Vantage M3 Size Comparison