vs
8.4Display9.6
8.3Battery life9.0
4.9Health tracking9.6
9.4Sports & outdoor9.5
8.4Build & durability8.6
Dimensions
Size comparison
T-Rex 3T-Rex 3 Pro
| T-Rex 3 | T-Rex 3 Pro | Difference | |
|---|---|---|---|
| Height | 48.5 mm | 48 mm | +0.5 mm |
| Width | 48.5 mm | 48 mm | +0.5 mm |
| Thickness | 13.8 mm | 14 mm | −0.2 mm |
| Weight | 68 g | 74 g | −6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex 3 better than T-Rex 3 Pro?
- Battery life (smartwatch mode)27 days vs 25 days+8%
- Weight68.3 g vs 74.5 g+9%
Why is T-Rex 3 Pro better than T-Rex 3?
- Pixel density322 ppi vs 466 ppi+45%
Specifications
Side by side
| Design & durability | ||
| Case size | 48 mm | 48 mm |
| Weight | 68.3 g | 74.5 g |
| Thickness | 13.8 mm | 14 mm |
| Height | 48.5 mm | 48 mm |
| Width | 48.5 mm | 48 mm |
| Case material | Stainless steel | Plastic / polymer |
| Sapphire crystal | — | Yes |
| Lens / cover glass | Gorilla Glass | Sapphire glass |
| Water resistance | 10 ATM | 10 ATM |
| Display | ||
| Screen size | 1.5″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 480 px | 480 px |
| Resolution (height) | 480 px | 480 px |
| Pixel density | 322 ppi | 466 ppi |
| Peak brightness | — | 3,000 nits |
| Battery | ||
| Battery life (smartwatch mode) | 27 days | 25 days |
| Battery saver mode | 40 days | — |
| GPS battery life | — | 85 h |
| GPS battery life (dual-band) | — | 38 h |
| Battery capacity | 700 mAh | 700 mAh |
| Charging | Magnetic charging base | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Skin temperature | — | Yes |
| Temperature sensor | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Offline maps | Yes | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Sport profiles | 177 | 180 |
| LED flashlight | — | Yes |
| Connectivity | ||
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Speaker | — | Yes |
| Microphone | Yes | Yes |
| Voice assistant | Yes | Yes |
| Music on the watch | Yes | Yes |
| Platform | ||
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | Android, iOS |
