Dimensions
Size comparison
C20 ProBT101
| C20 Pro | BT101 | Difference | |
|---|---|---|---|
| Height | 54 mm | 58.3 mm | −4.3 mm |
| Width | 43 mm | 46.1 mm | −3.1 mm |
| Thickness | 12.9 mm | 13.3 mm | −0.4 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is C20 Pro better than BT101?
- Thickness12.9 mm vs 13.3 mm+3%
Why is BT101 better than C20 Pro?
- SpeakerNo · C20 Pro: Yes
- Screen size1.81″ vs 2.02″+12%
- Resolution (width)240 px vs 320 px+33%
- Pixel density206 ppi vs 250 ppi+21%
- Battery capacity380 mAh vs 410 mAh+8%
Specifications
Side by side
| Design & durability | ||
| Case size | 54 mm | 58 mm |
| Thickness | 12.9 mm | 13.3 mm |
| Height | 54 mm | 58.3 mm |
| Width | 43 mm | 46.1 mm |
| Lens / cover glass | — | Tempered glass |
| Strap material | — | Silikon |
| Water resistance | — | 1 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Gray, Orange | Black |
| Display | ||
| Screen size | 1.81″ | 2.02″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | TFT LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 240 px | 320 px |
| Resolution (height) | 286 px | 390 px |
| Pixel density | 206 ppi | 250 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | — | 7 days |
| Battery capacity | 380 mAh | 410 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, heart rate, SpO2, blood pressure | Accelerometer, heart rate, SpO2, blood pressure, barometer, compass |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | 5 | 5.3 |
| Smart features | ||
| Speaker | No | Yes |
| Platform | ||
| Operating system | Proprietary OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
| Works with | — | iOS, Android |
