vs
Dimensions
Size comparison
GBD-300FW66 Iron R
| GBD-300 | FW66 Iron R | Difference | |
|---|---|---|---|
| Case size | 49 mm | 45 mm | +4 mm |
| Thickness | 14.9 mm | 11 mm | +3.9 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is GBD-300 better than FW66 Iron R?
GBD-300 has no measurable advantages in this pair.
Why is FW66 Iron R better than GBD-300?
- AMOLED / OLED displayNo · GBD-300: Yes
- Thickness14.9 mm vs 11 mm+35%
Specifications
Side by side
| Design & durability | ||
| Case size | 49 mm | 45 mm |
| Weight | — | 56 g |
| Thickness | 14.9 mm | 11 mm |
| Height | — | 51 mm |
| Width | — | 45 mm |
| Case material | Plastic / polymer | — |
| Lens / cover glass | Mineralglas Mineralglas | 2.5D-Glas Kristallglas |
| Strap material | Kunststoff, Resin | Edelstahl, Silikon |
| Water resistance | 20 ATM | — |
| Water rating (maker) | 200 m / 20 bar / 20 ATM | — |
| Colours | — | Black |
| Display | ||
| Screen size | — | 1.43″ |
| Display technology | LCD | AMOLED |
| Panel | LED | AMOLED |
| AMOLED / OLED display | No | Yes |
| Resolution (width) | — | 466 px |
| Resolution (height) | — | 466 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 14 days |
| Battery capacity | — | 300 mAh |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | accelerometer | heart rate, SpO2 |
| Connectivity | ||
| LTE (cellular) | — | No |
| Bluetooth | 4 | — |
| Smart features | ||
| Music on the watch | — | Yes |
| Storage | — | 128 GB |
| Platform | ||
| Chipset | — | RTL8763E |
