Device summary
Polar
Grit X2
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2025 |
| Starting price | — | $520 |
| Display size | — | 1.3-inch |
| Dimensions | 45.0 mm × 45.0 mm × 12.3 mm | 44.7 mm × 44.7 mm × 12.5 mm |
| Weight | 37 g | 39 g |
| Front material | Custom 3D Corning Gorilla Glass 5 | Sapphire Glass |
| Back material | — | Plastic |
| Display | ||
| Display technology | AMOLED LTPO (Actua 360) | AMOLED |
| Refresh rate | 60 Hz | — |
| Peak brightness | 3000 nits | — |
| Protection | Custom 3D Corning Gorilla Glass 5 | Sapphire Glass |
| Resolution | — | 416 × 416 |
| Performance | ||
| Chipset | Qualcomm Snapdragon W5 Gen 2 | — |
| RAM | 2 GB | — |
| Storage | 32 GB | 32 GB |
| Expandable storage | No | No |
| Battery & charging | ||
| Charging standard | USB-C Quick Charge Dock | Proprietary / 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 without |
| Battery type | Lithium-ion | Li-Pol (310 mAh) |
| Typical capacity | 455 mAh | — |
| Connectivity | ||
| Cellular | 4G LTE and UMTS (optional models), UWB, Dual-frequency GPS, Galileo, Glonass (US); + BeiDou, QZSS (ROW) | GPS / 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 |
| Wi‑Fi | Wi-Fi 802.11 a/b/g/n/ac/ax 2.4GHz, 5GHz | — |
| Bluetooth | Bluetooth 6.0 | Bluetooth® LE |
| NFC | Yes | — |
| eSIM | Yes | — |
| Satellite | Satellite SOS (LTE models) | — |
| Build & durability | ||
| Frame | 100% recycled aluminum | Plastic case; stainless steel bezel |
| Ingress protection | 5 ATM / IP68 | WR50 (50 m); MIL-STD-810H |
| Basic information | ||
|---|---|---|
| Release year | 2025 | 2025 |
| Starting price | — | $520 |
| Display size | — | 1.3-inch |
| Dimensions | 45.0 mm × 45.0 mm × 12.3 mm | 44.7 mm × 44.7 mm × 12.5 mm |
| Weight | 37 g | 39 g |
| Front material | Custom 3D Corning Gorilla Glass 5 | Sapphire Glass |
| Back material | — | Plastic |
| Display | ||
| Display technology | AMOLED LTPO (Actua 360) | AMOLED |
| Refresh rate | 60 Hz | — |
| Peak brightness | 3000 nits | — |
| Protection | Custom 3D Corning Gorilla Glass 5 | Sapphire Glass |
| Resolution | — | 416 × 416 |
| Performance | ||
| Chipset | Qualcomm Snapdragon W5 Gen 2 | — |
| RAM | 2 GB | — |
| Storage | 32 GB | 32 GB |
| Expandable storage | No | No |
| Battery & charging | ||
| Charging standard | USB-C Quick Charge Dock | Proprietary / 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 without |
| Battery type | Lithium-ion | Li-Pol (310 mAh) |
| Typical capacity | 455 mAh | — |
| Connectivity | ||
| Cellular | 4G LTE and UMTS (optional models), UWB, Dual-frequency GPS, Galileo, Glonass (US); + BeiDou, QZSS (ROW) | GPS / 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 |
| Wi‑Fi | Wi-Fi 802.11 a/b/g/n/ac/ax 2.4GHz, 5GHz | — |
| Bluetooth | Bluetooth 6.0 | Bluetooth® LE |
| NFC | Yes | — |
| eSIM | Yes | — |
| Satellite | Satellite SOS (LTE models) | — |
| Build & durability | ||
| Frame | 100% recycled aluminum | Plastic case; stainless steel bezel |
| Ingress protection | 5 ATM / IP68 | WR50 (50 m); MIL-STD-810H |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Weight
Google Pixel Watch 4 45mm
2 g lighter · minor difference
Height
Very similar height
Width
Very similar width
Thickness
Very similar thickness
What these size differences mean
Calculated from the dimensions shown, rounded to 0.1 mm and 1 g. Percentages use the smaller measurement as the reference. Fold and rotation settings affect the dimensions compared.
- Google Pixel Watch 4 45mm is 0.3 mm (0.7% relative to Grit X2) wider. Check this difference against the width of your current device and pocket opening.
- Google Pixel Watch 4 45mm is 0.3 mm (0.7% relative to Grit X2) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
- Grit X2 is 0.2 mm (1.6% relative to Google Pixel Watch 4 45mm) thicker. Cases and camera protrusions can change the clearance you need.
- Google Pixel Watch 4 45mm is 2 g lighter. This is the listed device-weight difference, not a measured comfort rating.
Use these figures to compare physical size. They do not establish one-handed reach, pocket fit, durability or an overall winner.
Sources and measurement notes
Sizometry compares published specifications and calculates differences. These are not hands-on measurements or tests of comfort, performance or pocket fit.
Google Pixel Watch 4 45mm
Check the exact model, year, region and configuration on the linked page. References may cover several variants. Folded and unfolded dimensions differ; cases and camera protrusions may change the space a device needs. Drawings share a relative scale and are not calibrated to life size on your screen.