vs
8.0Display6.3
7.2Battery life8.0
4.9Health tracking4.9
6.0Sports & outdoor6.4
6.3Build & durability8.4
Dimensions
Size comparison
T-Rex UltraRace 2
| T-Rex Ultra | Race 2 | Difference | |
|---|---|---|---|
| Height | 47.3 mm | 49 mm | −1.7 mm |
| Width | 47.3 mm | 49 mm | −1.7 mm |
| Thickness | 13.4 mm | 12.5 mm | +0.9 mm |
| Weight | 89 g | 76 g | +13 g |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex Ultra better than Race 2?
- Battery life (smartwatch mode)20 days vs 18 days+11%
- Pixel density326 ppi vs 311 ppi+5%
Why is Race 2 better than T-Rex Ultra?
- GPS battery life46 h vs 65 h+41%
- GPS battery life (dual-band)28 h vs 55 h+96%
- Weight89 g vs 76 g+17%
- Screen size1.39″ vs 1.5″+8%
- Thickness13.4 mm vs 12.5 mm+8%
- Resolution (width)454 px vs 466 px+3%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 49 mm |
| Weight | 89 g | 76 g |
| Thickness | 13.4 mm | 12.5 mm |
| Height | 47.3 mm | 49 mm |
| Width | 47.3 mm | 49 mm |
| Case material | Plastic / polymer | Stainless steel |
| Sapphire crystal | — | Yes |
| Lens / cover glass | — | Saphirglas Saphirglas |
| Strap material | — | Silikon |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | — | 100 m / 10 bar / 10 ATM |
| Display | ||
| Screen size | 1.39″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | Farbdisplay |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | — | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 454 px | 466 px |
| Resolution (height) | 454 px | 466 px |
| Pixel density | 326 ppi | 311 ppi |
| LTPO display | — | Yes |
| Battery | ||
| Battery life (smartwatch mode) | 20 days | 18 days |
| Battery saver mode | 25 days | — |
| GPS battery life | 46 h | 65 h |
| GPS battery life (dual-band) | 28 h | 55 h |
| Battery capacity | 500 mAh | — |
| Battery type | — | Li-Ion |
| Charging | Magnetic charging base | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Temperature sensor | — | Yes |
| HRV tracking | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | — | heart rate, barometer |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Satellite systems | — | GPS, GLONASS, GALILEO, BDS, QZSS |
| Offline maps | — | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | — | Yes |
| Sport profiles | — | 95 |
| Dive mode | — | Yes |
| Connectivity | ||
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5 | — |
| Smart features | ||
| Storage | — | 32 GB |
| Platform | ||
| Operating system | Zepp OS | Suunto OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | iOS, Android |
