Dimensions
Size comparison
Watch D2J888
| Watch D2 | J888 | Difference | |
|---|---|---|---|
| Case size | 38 mm | 45 mm | −7 mm |
| Thickness | 13.3 mm | 14 mm | −0.7 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch D2 better than J888?
- Thickness13.3 mm vs 14 mm+5%
Why is J888 better than Watch D2?
J888 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 48 mm | 45 mm |
| Weight | 40 g | — |
| Thickness | 13.3 mm | 14 mm |
| Height | 48 mm | — |
| Width | 38 mm | — |
| Case material | Aluminium | Stainless steel |
| Sapphire crystal | — | Yes |
| Lens / cover glass | — | Saphirglas Saphirglas |
| Strap material | — | Edelstahl |
| Water resistance | — | 20 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Water rating (maker) | — | 200 m / 20 bar / 20 ATM |
| Colours | Black, Gold | Silver |
| Display | ||
| Screen size | 1.82″ | — |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | — |
| Touchscreen | Yes | — |
| Resolution (width) | 408 px | — |
| Resolution (height) | 480 px | — |
| Pixel density | 347 ppi | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | — |
| Battery capacity | 524 mAh | — |
| Battery type | Li-Ion | — |
| Wireless charging | Yes | — |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| ECG | Yes | — |
| Skin temperature | Yes | — |
| Temperature sensor | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | Accelerometer, gyro, heart rate, SpO2, thermometer (skin temperature), differential pressure sensor, barometer | accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Connectivity | ||
| NFC payments | Yes | — |
| LTE (cellular) | No | — |
| eSIM | No | — |
| Bluetooth | 5.2 | 5 |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | — |
| Music on the watch | Yes | — |
| Platform | ||
| Operating system | HarmonyOS 5.0 | — |
| Platform | HarmonyOS | — |
| Works with | Android, iOS | iOS, Android |
