Dimensions
Size comparison
X1BT103
| X1 | BT103 | Difference | |
|---|---|---|---|
| Height | 52.7 mm | 49.5 mm | +3.2 mm |
| Width | 44.5 mm | 40 mm | +4.5 mm |
| Thickness | 14.2 mm | 10.9 mm | +3.3 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is X1 better than BT103?
- AMOLED / OLED displayYes · BT103: No
- Battery capacity850 mAh vs 300 mAh2.8×
- SpeakerYes · BT103: No
- Screen size2.13″ vs 1.91″+12%
- Resolution (width)410 px vs 320 px+28%
- Pixel density304 ppi vs 260 ppi+17%
Why is BT103 better than X1?
- Thickness14.2 mm vs 10.9 mm+30%
Specifications
Side by side
| Design & durability | ||
| Case size | 53 mm | 50 mm |
| Weight | — | 100 g |
| Thickness | 14.2 mm | 10.9 mm |
| Height | 52.7 mm | 49.5 mm |
| Width | 44.5 mm | 40 mm |
| Lens / cover glass | Tempered glass | Tempered glass |
| Water resistance | 2 ATM | — |
| Colours | Gray | Black, White |
| Display | ||
| Screen size | 2.13″ | 1.91″ |
| Display technology | AMOLED | LCD |
| Panel | AMOLED | TFT LCD |
| AMOLED / OLED display | Yes | No |
| Resolution (width) | 410 px | 320 px |
| Resolution (height) | 502 px | 380 px |
| Pixel density | 304 ppi | 260 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 850 mAh | 300 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, heart rate, SpO2, blood pressure, barometer, compass | Accelerometer, heart rate, SpO2 |
| 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 | 5.2 | 5.2 |
| Smart features | ||
| Speaker | Yes | No |
| Platform | ||
| Operating system | Proprietary OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
