Dimensions
Size comparison
T-Rex ProGSEMFW
| T-Rex Pro | GSEMFW | Difference | |
|---|---|---|---|
| Case size | 47.7 mm | 47 mm | +0.7 mm |
| Weight | 59 g | 38 g | +21 g |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex Pro better than GSEMFW?
- Resolution (width)800 px vs 240 px3.3×
Why is GSEMFW better than T-Rex Pro?
- Weight59.4 g vs 38 g+56%
- Battery capacity390 mAh vs 600 mAh+54%
Specifications
Side by side
| Design & durability | ||
| Case size | 48 mm | 47 mm |
| Weight | 59.4 g | 38 g |
| Thickness | 13.5 mm | — |
| Case material | — | Plastic / polymer |
| Strap material | — | Silikon |
| Water resistance | 10 ATM | — |
| Military-grade (MIL-STD-810) | Yes | — |
| Colours | — | Black |
| Display | ||
| Screen size | 2″ | — |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | — |
| Touchscreen | Yes | — |
| Resolution (width) | 800 px | 240 px |
| Resolution (height) | 890 px | 240 px |
| Pixel density | 598 ppi | — |
| Battery | ||
| Battery life (smartwatch mode) | — | 2 days |
| Battery capacity | 390 mAh | 600 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | — |
| Sensors | — | heart rate |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | — | GPS |
| Offline maps | Yes | — |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Sport profiles | 120 | — |
| Connectivity | ||
| NFC payments | Yes | — |
| LTE (cellular) | — | Yes |
| Bluetooth | 5 | — |
| Smart features | ||
| Voice assistant | Yes | — |
| Platform | ||
| Platform | Proprietary | — |
| Works with | — | iOS, Android |
