Why is Smart Watch 2 better than J888?
Smart Watch 2 has no measurable advantages in this pair.
Why is J888 better than Smart Watch 2?
J888 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | — | 45 mm |
| Thickness | — | 14 mm |
| Case material | Plastic / polymer | 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 | Silver |
| Display | ||
| Screen size | 1.8″ | — |
| Display technology | LCD | — |
| Panel | IPS LCD | — |
| AMOLED / OLED display | No | — |
| Resolution (width) | 240 px | — |
| Resolution (height) | 286 px | — |
| Pixel density | 207 ppi | — |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery capacity | 230 mAh | — |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Sensors | Accelerometer, heart rate, SpO2 | accelerometer |
| Sports & navigation | ||
| Built-in GPS | No | — |
| Connectivity | ||
| NFC payments | No | — |
| LTE (cellular) | No | — |
| eSIM | No | — |
| Bluetooth | 5.1 | 5 |
| Smart features | ||
| Speaker | Yes | — |
| Platform | ||
| Operating system | Proprietary OS | — |
| Platform | Proprietary | — |
| Works with | — | iOS, Android |
