Dimensions
Size comparison
Pro 4NC83S
| Pro 4 | NC83S | Difference | |
|---|---|---|---|
| Case size | 47 mm | 38 mm | +9 mm |
| Thickness | 9.9 mm | 16 mm | −6.1 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Pro 4 better than NC83S?
- Thickness9.9 mm vs 16 mm+62%
Why is NC83S better than Pro 4?
- Battery life (smartwatch mode)5 days vs 6 days+20%
- Screen size1.56″ vs 1.69″+8%
- Battery capacity440 mAh vs 700 mAh+59%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | — |
| Weight | — | 55 g |
| Thickness | 9.9 mm | 16 mm |
| Height | — | 48 mm |
| Width | — | 38 mm |
| Case material | Stainless steel | — |
| Colours | — | Black |
| Display | ||
| Screen size | 1.56″ | 1.69″ |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | — |
| Always-on display | Yes | — |
| Resolution (width) | 480 px | — |
| Resolution (height) | 480 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 5 days | 6 days |
| Battery capacity | 440 mAh | 700 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Skin temperature | Yes | — |
| HRV tracking | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | heart rate, SpO2 | heart rate |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Satellite systems | — | GPS |
| Connectivity | ||
| LTE (cellular) | — | Yes |
| Bluetooth | 5.1 | — |
| Platform | ||
| Works with | iOS, Android | — |
| Chipset | Jieli AC7013A | — |
