vs
8.5Display8.7
9.1Health tracking9.4
Why is Pro 4 better than Pro 4 Ultra eckig?
- Thickness9.9 mm vs 10.9 mm+10%
Why is Pro 4 Ultra eckig better than Pro 4?
- Battery life (smartwatch mode)5 days vs 6 days+20%
- Battery capacity440 mAh vs 1,400 mAh3.2×
- Screen size1.56″ vs 2.04″+31%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | — |
| Thickness | 9.9 mm | 10.9 mm |
| Case material | Stainless steel | Aluminium |
| Display | ||
| Screen size | 1.56″ | 2.04″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | Yes |
| Resolution (width) | 480 px | — |
| Resolution (height) | 480 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 5 days | 6 days |
| Battery capacity | 440 mAh | 1,400 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | Yes |
| Skin temperature | Yes | Yes |
| HRV tracking | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Satellite systems | — | GPS |
| Connectivity | ||
| Bluetooth | 5.1 | 5.3 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
| Chipset | Jieli AC7013A | — |
