Why is GBD-300 better than FW51?
GBD-300 has no measurable advantages in this pair.
Why is FW51 better than GBD-300?
FW51 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 49 mm | — |
| Thickness | 14.9 mm | — |
| Case material | Plastic / polymer | — |
| Lens / cover glass | Mineralglas Mineralglas | — |
| Strap material | Kunststoff, Resin | — |
| Water resistance | 20 ATM | — |
| Water rating (maker) | 200 m / 20 bar / 20 ATM | — |
| Colours | — | Black |
| Display | ||
| Screen size | — | 1.09″ |
| Display technology | LCD | — |
| Panel | LED | IPS |
| AMOLED / OLED display | No | No |
| Touchscreen | — | Yes |
| Resolution (width) | — | 240 px |
| Resolution (height) | — | 240 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 7 days |
| Battery capacity | — | 130 mAh |
| Battery type | — | Li-Po |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | accelerometer | heart rate, SpO2 |
| Connectivity | ||
| Bluetooth | 4 | — |
| Platform | ||
| Chipset | — | Realtek RTK8762DK |
