Why is BT103 better than BT20?
BT103 has no measurable advantages in this pair.
Why is BT20 better than BT103?
- AMOLED / OLED displayNo · BT103: Yes
- SpeakerNo · BT103: Yes
- Screen size1.91″ vs 1.96″+3%
- Resolution (width)320 px vs 410 px+28%
- Pixel density260 ppi vs 331 ppi+27%
- Battery capacity300 mAh vs 350 mAh+17%
Specifications
Side by side
| Design & durability | ||
| Case size | 50 mm | — |
| Weight | 100 g | — |
| Thickness | 10.9 mm | — |
| Height | 49.5 mm | — |
| Width | 40 mm | — |
| Lens / cover glass | Tempered glass | — |
| Water resistance | — | 5 ATM |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | Black, White | Black |
| Display | ||
| Screen size | 1.91″ | 1.96″ |
| Display technology | LCD | AMOLED |
| Panel | TFT LCD | AMOLED |
| AMOLED / OLED display | No | Yes |
| Resolution (width) | 320 px | 410 px |
| Resolution (height) | 380 px | 502 px |
| Pixel density | 260 ppi | 331 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 300 mAh | 350 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, heart rate, SpO2 | 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 | 5.2 |
| Smart features | ||
| Speaker | No | Yes |
| Platform | ||
| Operating system | Proprietary OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
