Why is Watch 2 better than FW51?
- AMOLED / OLED displayYes · FW51: No
- Battery capacity530 mAh vs 130 mAh4.1×
- Screen size1.5″ vs 1.09″+38%
- Resolution (width)480 px vs 240 px2×
Why is FW51 better than Watch 2?
FW51 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Weight | 31.5 g | — |
| Colours | Black | Black |
| Display | ||
| Screen size | 1.5″ | 1.09″ |
| Display technology | AMOLED | — |
| Panel | AMOLED | IPS |
| AMOLED / OLED display | Yes | No |
| Touchscreen | — | Yes |
| Resolution (width) | 480 px | 240 px |
| Resolution (height) | 480 px | 240 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 7 days |
| Battery capacity | 530 mAh | 130 mAh |
| Battery type | Li-Ion | Li-Po |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | — | Yes |
| Sensors | — | heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Connectivity | ||
| Bluetooth | 5.3 | — |
| Platform | ||
| Works with | iOS, Android | — |
| Chipset | — | Realtek RTK8762DK |









