Dimensions
Size comparison
GTS 4Watch 2
| GTS 4 | Watch 2 | Difference | |
|---|---|---|---|
| Height | 36.5 mm | 46.4 mm | −9.9 mm |
| Width | 42.7 mm | 38.5 mm | +4.2 mm |
| Thickness | 9.9 mm | 11.6 mm | −1.7 mm |
| Weight | 27 g | 35 g | −8 g |
Drawn to the same scale from the official dimensions (front and side).
Why is GTS 4 better than Watch 2?
- Weight27 g vs 35 g+30%
- Thickness9.9 mm vs 11.6 mm+17%
- Pixel density341 ppi vs 326 ppi+5%
Why is Watch 2 better than GTS 4?
- Screen size1.75″ vs 1.91″+9%
- Battery capacity300 mAh vs 510 mAh+70%
- Resolution (width)390 px vs 402 px+3%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 46 mm |
| Weight | 27 g | 35 g |
| Thickness | 9.9 mm | 11.6 mm |
| Height | 36.5 mm | 46.4 mm |
| Width | 42.7 mm | 38.5 mm |
| Case material | Aluminium | Aluminium |
| Lens / cover glass | Tempered glass | — |
| Water resistance | 5 ATM | 5 ATM |
| Colours | — | Star Blue, Platinum Black, Rose Gold |
| Display | ||
| Screen size | 1.75″ | 1.91″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 390 px | 402 px |
| Resolution (height) | 450 px | 476 px |
| Pixel density | 341 ppi | 326 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 8 days | — |
| GPS battery life | 28 h | — |
| GPS battery life (dual-band) | 16 h | — |
| Battery capacity | 300 mAh | 510 mAh |
| Battery type | — | Li-Ion |
| Charging | Magnetic charging | — |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sleep tracking | Yes | — |
| Sensors | — | Accelerometer, gyro, heart rate, compass, barometer, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | — | GLONASS, GALILEO, BDS |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Sport profiles | 150 | — |
| Connectivity | ||
| NFC payments | — | Yes |
| LTE (cellular) | — | Yes |
| eSIM | — | Yes |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5 | 5 |
| Smart features | ||
| Speaker | Yes | Yes |
| Microphone | Yes | — |
| Storage | — | 8 GB |
| RAM | — | 1 GB |
| Platform | ||
| Operating system | Zepp OS | Android Wear OS - International ColorOS Watch 2.0 - China |
| Platform | Proprietary | Android |
| Works with | iOS, Android | — |
| Chipset | — | Qualcomm Snapdragon Wear 4100 |
