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4.9Health tracking4.9
Why is Tank M4 better than Series 29 AMOLED Smart Calling Watch?
Tank M4 has no measurable advantages in this pair.
Why is Series 29 AMOLED Smart Calling Watch better than Tank M4?
Series 29 AMOLED Smart Calling Watch has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | — | 51 mm |
| Weight | 60 g | — |
| Lens / cover glass | Gorilla Glas | — |
| Strap material | — | Silikon |
| Water resistance | 10 ATM | — |
| Water rating (maker) | 100 m / 10 bar / 10 ATM | — |
| Colours | — | Blue, Black |
| Display | ||
| Screen size | 1.96″ | — |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 410 px | — |
| Resolution (height) | 502 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | heart rate, SpO2 | SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GPS | GPS |
| Connectivity | ||
| Bluetooth | 5.3 | 5.1 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
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