Why is GBD-300 better than Tank M3?
- Water resistance20 ATM vs 5 ATM4×
Why is Tank M3 better than GBD-300?
- AMOLED / OLED displayNo · GBD-300: Yes
Specifications
Side by side
| Design & durability | ||
| Case size | 49 mm | — |
| Weight | — | 60 g |
| Thickness | 14.9 mm | — |
| Case material | Plastic / polymer | — |
| Lens / cover glass | Mineralglas Mineralglas | Gorilla Glas |
| Strap material | Kunststoff, Resin | — |
| Water resistance | 20 ATM | 5 ATM |
| Water rating (maker) | 200 m / 20 bar / 20 ATM | 50 m / 5 bar / 5 ATM |
| Display | ||
| Screen size | — | 1.96″ |
| Display technology | LCD | AMOLED |
| Panel | LED | AMOLED |
| AMOLED / OLED display | No | Yes |
| Resolution (width) | — | 410 px |
| Resolution (height) | — | 502 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 10 days |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | — | Yes |
| Sensors | accelerometer | heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Satellite systems | — | GPS |
| Connectivity | ||
| Bluetooth | 4 | 5.3 |
| Platform | ||
| Works with | — | iOS, Android |
