vs
4.9Health tracking4.9
Dimensions
Size comparison
GT20-4 Smartwatch 1,43 Zoll AMOLEDA3
| GT20-4 Smartwatch 1,43 Zoll AMOLED | A3 | Difference | |
|---|---|---|---|
| Case size | 46 mm | 45.2 mm | +0.8 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is GT20-4 Smartwatch 1,43 Zoll AMOLED better than A3?
- Screen size1.43″ vs 1.39″+3%
- Resolution (width)466 px vs 360 px+29%
- Battery capacity360 mAh vs 300 mAh+20%
Why is A3 better than GT20-4 Smartwatch 1,43 Zoll AMOLED?
A3 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 45 mm |
| Weight | — | 45 g |
| Thickness | — | 11.6 mm |
| Case material | Plastic / polymer | — |
| Strap material | Silikon, Gummi | — |
| Water resistance | — | 2 ATM |
| Colours | Black, Orange | — |
| Display | ||
| Screen size | 1.43″ | 1.39″ |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | — |
| Touchscreen | Yes | — |
| Resolution (width) | 466 px | 360 px |
| Resolution (height) | 466 px | 360 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 8 days |
| Battery capacity | 360 mAh | 300 mAh |
| Battery type | Li-Ion | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | — | Yes |
| Sensors | heart rate, SpO2 | — |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| Bluetooth | 5 | — |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Platform | ||
| Works with | iOS, Android | Android, iOS |
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