vs
7.8Display9.5
4.9Health tracking9.7
Dimensions
Size comparison
T-Rex 2PRO 4 2026 Smartwatch silber, ECG, IP67
| T-Rex 2 | PRO 4 2026 Smartwatch silber, ECG, IP67 | Difference | |
|---|---|---|---|
| Case size | 47.1 mm | 47 mm | +0.1 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex 2 better than PRO 4 2026 Smartwatch silber, ECG, IP67?
T-Rex 2 has no measurable advantages in this pair.
Why is PRO 4 2026 Smartwatch silber, ECG, IP67 better than T-Rex 2?
- Screen size1.39″ vs 1.56″+12%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 47 mm |
| Weight | 66.5 g | — |
| Thickness | 13.6 mm | — |
| Height | 47.1 mm | — |
| Width | 47.1 mm | — |
| Case material | Plastic / polymer | — |
| Lens / cover glass | Glass material | — |
| Strap material | — | Silikon |
| Water resistance | 10 ATM | — |
| Colours | — | Silver |
| Display | ||
| Screen size | 1.39″ | 1.56″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 454 px | — |
| Resolution (height) | 454 px | — |
| Pixel density | 326 ppi | — |
| Battery | ||
| Battery life (smartwatch mode) | 24 days | — |
| GPS battery life | 50 h | — |
| GPS battery life (dual-band) | 26 h | — |
| Battery capacity | 500 mAh | — |
| Charging | Magnetic 2-pin pogo pin | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| ECG | — | Yes |
| Skin temperature | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | — | heart rate |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Dual-band GPS | Yes | — |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Sport profiles | 158 | — |
| Connectivity | ||
| Bluetooth | 5 | — |
| Platform | ||
| Platform | Proprietary | — |
| Works with | — | iOS, Android |
