Dimensions
Size comparison
C3Unite
| C3 | Unite | Difference | |
|---|---|---|---|
| Height | 46 mm | 43 mm | +3 mm |
| Width | 46 mm | 43 mm | +3 mm |
| Thickness | 14.8 mm | 10.4 mm | +4.4 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is C3 better than Unite?
- Water resistance5 ATM vs 3 ATM+67%
- Screen size1.3″ vs 1.2″+8%
- Battery capacity260 mAh vs 165 mAh+58%
- Pixel density261 ppi vs 200 ppi+30%
Why is Unite better than C3?
- Thickness14.8 mm vs 10.4 mm+42%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 43 mm |
| Weight | — | 32 g |
| Thickness | 14.8 mm | 10.4 mm |
| Height | 46 mm | 43 mm |
| Width | 46 mm | 43 mm |
| Case material | — | Plastic / polymer |
| Lens / cover glass | Scratch-resistant glass | — |
| Water resistance | 5 ATM | 3 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Water rating (maker) | — | WR30 |
| Colours | Black, Gray | White, Black Hook and Loop, Black |
| Display | ||
| Screen size | 1.3″ | 1.2″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | TFT |
| AMOLED / OLED display | No | No |
| Touchscreen | — | Yes |
| Resolution (width) | 240 px | 240 px |
| Resolution (height) | 240 px | 240 px |
| Pixel density | 261 ppi | 200 ppi |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery life (smartwatch mode) | — | 4 days |
| Battery capacity | 260 mAh | 165 mAh |
| Battery type | — | Li-Pol |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Skin temperature | — | No |
| HRV tracking | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, gyro, heart rate | Accelerometer |
| Sports & navigation | ||
| Built-in GPS | No | — |
| Offline maps | — | No |
| LED flashlight | — | No |
| Connectivity | ||
| NFC payments | No | — |
| LTE (cellular) | No | — |
| eSIM | No | — |
| Bluetooth | 5.1 | 5.1 |
| Smart features | ||
| Speaker | No | — |
| Platform | ||
| Operating system | Proprietary OS | Polar OS |
| Platform | Proprietary | Proprietary |
