vs
3.5Display8.3
5.0Health tracking5.0
Dimensions
Size comparison
Watch 4000Watch X5i
| Watch 4000 | Watch X5i | Difference | |
|---|---|---|---|
| Case size | 46 mm | 40.5 mm | +5.5 mm |
| Thickness | 11 mm | 10.9 mm | +0.1 mm |
| Weight | 39 g | 28 g | +11 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 4000 better than Watch X5i?
- Built-in GPSYes · Watch X5i: No
Why is Watch X5i better than Watch 4000?
- Battery life (smartwatch mode)6 days vs 21 days3.5×
- AMOLED / OLED displayNo · Watch 4000: Yes
- Weight39 g vs 28 g+39%
- Screen size1.65″ vs 1.97″+19%
- Battery capacity300 mAh vs 420 mAh+40%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 47 mm |
| Weight | 39 g | 28 g |
| Thickness | 11 mm | 10.9 mm |
| Height | — | 46.7 mm |
| Width | — | 40.5 mm |
| Case material | Stainless steel | Plastic / polymer |
| Strap material | Kunststoff | Silikon |
| Water resistance | — | 1 ATM |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Water rating (maker) | — | 1 ATM |
| Colours | Black | Black, White |
| Display | ||
| Screen size | 1.65″ | 1.97″ |
| Display technology | LCD | AMOLED |
| Panel | LCD | AMOLED |
| AMOLED / OLED display | No | Yes |
| Resolution (width) | — | 390 px |
| Resolution (height) | — | 450 px |
| Pixel density | — | 302 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | 21 days |
| Battery capacity | 300 mAh | 420 mAh |
| Battery type | Li-Po | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2, accelerometer | Accelerometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | No |
| Satellite systems | GPS | — |
| Connectivity | ||
| NFC payments | — | No |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Bluetooth | 5.3 | 5.4 |
| Smart features | ||
| Speaker | — | Yes |
| Microphone | — | Yes |
| Voice assistant | Yes | — |
| Platform | ||
| Operating system | — | RTOS OS |
| Platform | — | Proprietary |
| Works with | iOS, Android | iOS, Android |
