Dimensions
Size comparison
Watch BudsJ888
| Watch Buds | J888 | Difference | |
|---|---|---|---|
| Case size | 47.5 mm | 45 mm | +2.5 mm |
| Thickness | 15 mm | 14 mm | +1 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch Buds better than J888?
Watch Buds has no measurable advantages in this pair.
Why is J888 better than Watch Buds?
- Thickness15 mm vs 14 mm+7%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 45 mm |
| Weight | 66.5 g | — |
| Thickness | 15 mm | 14 mm |
| Height | 47 mm | — |
| Width | 47.5 mm | — |
| Case material | Stainless steel | Stainless steel |
| Sapphire crystal | — | Yes |
| Lens / cover glass | — | Saphirglas Saphirglas |
| Strap material | — | Edelstahl |
| Water resistance | — | 20 ATM |
| Water rating (maker) | — | 200 m / 20 bar / 20 ATM |
| Colours | Black, Khaki | Silver |
| Display | ||
| Screen size | 1.43″ | — |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | — |
| Resolution (width) | 466 px | — |
| Resolution (height) | 466 px | — |
| Pixel density | 326 ppi | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery capacity | 410 mAh | — |
| Battery type | Li-Ion | — |
| Wireless charging | Yes | — |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Sensors | Accelerometer, gyro, heart rate, SpO2 | accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS | — |
| Connectivity | ||
| NFC payments | Yes | — |
| LTE (cellular) | No | — |
| eSIM | No | — |
| Bluetooth | 5.2 | 5 |
| Smart features | ||
| Speaker | No | — |
| Platform | ||
| Operating system | HarmonyOS 3.0 | — |
| Platform | HarmonyOS | — |
| Works with | — | iOS, Android |









