Dimensions
Size comparison
BT101BT103
| BT101 | BT103 | Difference | |
|---|---|---|---|
| Height | 58.3 mm | 49.5 mm | +8.8 mm |
| Width | 46.1 mm | 40 mm | +6.1 mm |
| Thickness | 13.3 mm | 10.9 mm | +2.4 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is BT101 better than BT103?
- SpeakerYes · BT103: No
- Screen size2.02″ vs 1.91″+6%
- Battery capacity410 mAh vs 300 mAh+37%
Why is BT103 better than BT101?
- Thickness13.3 mm vs 10.9 mm+22%
- Pixel density250 ppi vs 260 ppi+4%
Specifications
Side by side
| Design & durability | ||
| Case size | 58 mm | 50 mm |
| Weight | — | 100 g |
| Thickness | 13.3 mm | 10.9 mm |
| Height | 58.3 mm | 49.5 mm |
| Width | 46.1 mm | 40 mm |
| Lens / cover glass | Tempered glass | Tempered glass |
| Strap material | Silikon | — |
| Water resistance | 1 ATM | — |
| Water rating (maker) | 50 m / 5 bar / 5 ATM | — |
| Colours | Black | Black, White |
| Display | ||
| Screen size | 2.02″ | 1.91″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | TFT LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 320 px | 320 px |
| Resolution (height) | 390 px | 380 px |
| Pixel density | 250 ppi | 260 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | — |
| Battery capacity | 410 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 | 5.3 | 5.2 |
| Smart features | ||
| Speaker | Yes | No |
| Platform | ||
| Operating system | Proprietary OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | — |
