Dimensions
Size comparison
T-Rex 3Race 2
| T-Rex 3 | Race 2 | Difference | |
|---|---|---|---|
| Height | 48.5 mm | 49 mm | −0.5 mm |
| Width | 48.5 mm | 49 mm | −0.5 mm |
| Thickness | 13.8 mm | 12.5 mm | +1.2 mm |
| Weight | 68 g | 76 g | −8 g |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex 3 better than Race 2?
- Battery life (smartwatch mode)27 days vs 18 days+50%
- Weight68.3 g vs 76 g+11%
- Sport profiles170 vs 95+79%
- Pixel density322 ppi vs 311 ppi+4%
- Resolution (width)480 px vs 466 px+3%
Why is Race 2 better than T-Rex 3?
- GPS battery life28 h vs 65 h2.3×
- GPS battery life (dual-band)42 h vs 55 h+31%
- Thickness13.8 mm vs 12.5 mm+10%
Specifications
Side by side
| Design & durability | ||
| Case size | 48 mm | 49 mm |
| Weight | 68.3 g | 76 g |
| Thickness | 13.8 mm | 12.5 mm |
| Height | 48.5 mm | 49 mm |
| Width | 48.5 mm | 49 mm |
| Case material | Stainless steel | Stainless steel |
| Sapphire crystal | — | Yes |
| Lens / cover glass | Gorilla Glass | Saphirglas Saphirglas |
| Strap material | — | Silikon |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | — | 100 m / 10 bar / 10 ATM |
| Display | ||
| Screen size | 1.5″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | Farbdisplay |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | — | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 480 px | 466 px |
| Resolution (height) | 480 px | 466 px |
| Pixel density | 322 ppi | 311 ppi |
| LTPO display | — | Yes |
| Battery | ||
| Battery life (smartwatch mode) | 27 days | 18 days |
| Battery saver mode | 40 days | — |
| GPS battery life | 28 h | 65 h |
| GPS battery life (dual-band) | 42 h | 55 h |
| Battery capacity | 700 mAh | — |
| Battery type | — | Li-Ion |
| Charging | Magnetic charging base | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Temperature sensor | Yes | Yes |
| HRV tracking | — | Yes |
| Sleep tracking | Yes | 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 | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | — | Yes |
| Sport profiles | 170 | 95 |
| Dive mode | — | Yes |
| Connectivity | ||
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5.2 | — |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | — | 32 GB |
| Platform | ||
| Operating system | — | Suunto OS |
| Platform | Proprietary | Proprietary |
| Works with | Android, iOS | iOS, Android |
