Why is 8900 better than BT20?
- Built-in GPSYes · BT20: No
- Resolution (width)466 px vs 410 px+14%
Why is BT20 better than 8900?
- Screen size1.3″ vs 1.96″+51%
- Battery capacity300 mAh vs 350 mAh+17%
Specifications
Side by side
| Design & durability | ||
| Case size | 42 mm | — |
| Weight | 40 g | — |
| Case material | Aluminium | — |
| Strap material | Silikon | — |
| Water resistance | — | 5 ATM |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | — | Black |
| Display | ||
| Screen size | 1.3″ | 1.96″ |
| Display technology | AMOLED | AMOLED |
| Panel | OLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 466 px | 410 px |
| Resolution (height) | 466 px | 502 px |
| Pixel density | — | 331 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery capacity | 300 mAh | 350 mAh |
| Battery type | Li-Po | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | heart rate, ambient light | Accelerometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | No |
| Satellite systems | GPS | — |
| Compass | Yes | — |
| Multisport / triathlon mode | Yes | — |
| Connectivity | ||
| NFC payments | — | No |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Bluetooth | 5.3 | 5.2 |
| Smart features | ||
| Speaker | — | Yes |
| Voice assistant | Yes | — |
| Platform | ||
| Operating system | — | Proprietary OS |
| Platform | — | Proprietary |
| Works with | iOS, Android | — |
