Google Pixel Watch 4 45mm vs Grit X2
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 | ||
| Typical capacity | 455 mAh | — |
| 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) |
| 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
- Google Pixel Watch 4 45mm
- 2025
- Grit X2
- 2025
Starting price
- Google Pixel Watch 4 45mm
- —
- Grit X2
- $520
Display size
- Google Pixel Watch 4 45mm
- —
- Grit X2
- 1.3-inch
Dimensions
- Google Pixel Watch 4 45mm
- 45.0 mm × 45.0 mm × 12.3 mm
- Grit X2
- 44.7 mm × 44.7 mm × 12.5 mm
Weight
- Google Pixel Watch 4 45mm
- 37 g
- Grit X2
- 39 g
Front material
- Google Pixel Watch 4 45mm
- Custom 3D Corning Gorilla Glass 5
- Grit X2
- Sapphire Glass
Back material
- Google Pixel Watch 4 45mm
- —
- Grit X2
- Plastic
Display
Display technology
- Google Pixel Watch 4 45mm
- AMOLED LTPO (Actua 360)
- Grit X2
- AMOLED
Refresh rate
- Google Pixel Watch 4 45mm
- 60 Hz
- Grit X2
- —
Peak brightness
- Google Pixel Watch 4 45mm
- 3000 nits
- Grit X2
- —
Protection
- Google Pixel Watch 4 45mm
- Custom 3D Corning Gorilla Glass 5
- Grit X2
- Sapphire Glass
Resolution
- Google Pixel Watch 4 45mm
- —
- Grit X2
- 416 × 416
Performance
Chipset
- Google Pixel Watch 4 45mm
- Qualcomm Snapdragon W5 Gen 2
- Grit X2
- —
RAM
- Google Pixel Watch 4 45mm
- 2 GB
- Grit X2
- —
Storage
- Google Pixel Watch 4 45mm
- 32 GB
- Grit X2
- 32 GB
Expandable storage
- Google Pixel Watch 4 45mm
- No
- Grit X2
- No
Battery & charging
Typical capacity
- Google Pixel Watch 4 45mm
- 455 mAh
- Grit X2
- —
Charging standard
- Google Pixel Watch 4 45mm
- USB-C Quick Charge Dock
- Grit X2
- 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
- Google Pixel Watch 4 45mm
- Lithium-ion
- Grit X2
- Li-Pol (310 mAh)
Connectivity
Cellular
- Google Pixel Watch 4 45mm
- 4G LTE and UMTS (optional models), UWB, Dual-frequency GPS, Galileo, Glonass (US); + BeiDou, QZSS (ROW)
- Grit X2
- 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
- Google Pixel Watch 4 45mm
- Wi-Fi 802.11 a/b/g/n/ac/ax 2.4GHz, 5GHz
- Grit X2
- —
Bluetooth
- Google Pixel Watch 4 45mm
- Bluetooth 6.0
- Grit X2
- Bluetooth® LE
NFC
- Google Pixel Watch 4 45mm
- Yes
- Grit X2
- —
eSIM
- Google Pixel Watch 4 45mm
- Yes
- Grit X2
- —
Satellite
- Google Pixel Watch 4 45mm
- Satellite SOS (LTE models)
- Grit X2
- —
Build & durability
Frame
- Google Pixel Watch 4 45mm
- 100% recycled aluminum
- Grit X2
- Plastic case; stainless steel bezel
Ingress protection
- Google Pixel Watch 4 45mm
- 5 ATM / IP68
- Grit X2
- 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