Dimensions
Size comparison
105BT103
| 105 | BT103 | Difference | |
|---|---|---|---|
| Height | 115.5 mm | 49.5 mm | +66 mm |
| Width | 49.5 mm | 40 mm | +9.5 mm |
| Thickness | 14 mm | 10.9 mm | +3.1 mm |
| Weight | 78 g | 100 g | −22 g |
Drawn to the same scale from the official dimensions (front and side).
Why is 105 better than BT103?
- Battery capacity1,000 mAh vs 300 mAh3.3×
- Weight77.5 g vs 100 g+29%
- SpeakerYes · BT103: No
- Screen size2″ vs 1.91″+5%
Why is BT103 better than 105?
- Resolution (width)120 px vs 320 px2.7×
- Pixel density100 ppi vs 260 ppi2.6×
- Thickness14 mm vs 10.9 mm+28%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 50 mm |
| Weight | 77.5 g | 100 g |
| Thickness | 14 mm | 10.9 mm |
| Height | 115.5 mm | 49.5 mm |
| Width | 49.5 mm | 40 mm |
| Lens / cover glass | — | Tempered glass |
| Ingress protection | IP54 | — |
| Water resistance (IPx) | IPx4 | — |
| Colours | Black, Blue, Purple | Black, White |
| Display | ||
| Screen size | 2″ | 1.91″ |
| Display technology | LCD | LCD |
| Panel | TFT LCD | TFT LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 120 px | 320 px |
| Resolution (height) | 160 px | 380 px |
| Pixel density | 100 ppi | 260 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 1,000 mAh | 300 mAh |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sensors | — | Accelerometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | No | No |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | — | 5.2 |
| Smart features | ||
| Speaker | Yes | No |
| RAM | 0.004 GB | — |
| Platform | ||
| Operating system | RTOS OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
