vs
7.8Display2.1
Dimensions
Size comparison
T-Rex UltraElemnt Rival
| T-Rex Ultra | Elemnt Rival | Difference | |
|---|---|---|---|
| Case size | 47.3 mm | 46.5 mm | +0.8 mm |
| Thickness | 13.4 mm | 15.3 mm | −1.9 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex Ultra better than Elemnt Rival?
- Water resistance10 ATM vs 5 ATM2×
- AMOLED / OLED displayYes · Elemnt Rival: No
- Screen size1.39″ vs 1.2″+16%
- Resolution (width)454 px vs 240 px+89%
- Thickness13.4 mm vs 15.3 mm+14%
Why is Elemnt Rival better than T-Rex Ultra?
Elemnt Rival has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | — | 46 mm |
| Weight | 89 g | — |
| Thickness | 13.4 mm | 15.3 mm |
| Height | 47.3 mm | — |
| Width | 47.3 mm | — |
| Case material | Plastic / polymer | Plastic / polymer |
| Lens / cover glass | — | Gorilla Glas |
| Strap material | — | Silikon |
| Water resistance | 10 ATM | 5 ATM |
| Water rating (maker) | — | 50 m / 5 ATM |
| Colours | — | Black |
| Display | ||
| Screen size | 1.39″ | 1.2″ |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | No |
| Touchscreen | Yes | — |
| Resolution (width) | 454 px | 240 px |
| Resolution (height) | 454 px | 240 px |
| Pixel density | 326 ppi | — |
| Battery | ||
| Battery life (smartwatch mode) | 20 days | — |
| Battery saver mode | 25 days | — |
| GPS battery life | 46 h | — |
| GPS battery life (dual-band) | 28 h | — |
| Battery capacity | 500 mAh | — |
| Battery type | — | Li-Po |
| Charging | Magnetic charging base | — |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | — |
| Sensors | — | accelerometer, ambient light |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | — | GPS, GLONASS |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5 | — |
| Platform | ||
| Operating system | Zepp OS | — |
| Platform | Proprietary | — |
| Works with | iOS, Android | iOS, Android |
