Why is 402 better than Watch JOY?
402 has no measurable advantages in this pair.
Why is Watch JOY better than 402?
Watch JOY has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | — |
| Case material | — | Plastic / polymer |
| Strap material | Silikon | — |
| Colours | Black | — |
| Display | ||
| Screen size | 1.43″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 466 px | 466 px |
| Resolution (height) | 466 px | 466 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 10 days |
| Battery capacity | — | 380 mAh |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Sleep tracking | — | Yes |
| Sensors | heart rate, accelerometer | — |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Connectivity | ||
| LTE (cellular) | — | No |
| Bluetooth | 5.3 | 5 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
