vs
7.8Display3.7
7.1Battery life7.9
4.9Health tracking4.9
6.1Sports & outdoor4.5
6.3Build & durability4.5
Dimensions
Size comparison
T-Rex UltraApex 2 Pro
| T-Rex Ultra | Apex 2 Pro | Difference | |
|---|---|---|---|
| Height | 47.3 mm | 46.5 mm | +0.8 mm |
| Width | 47.3 mm | 46.1 mm | +1.2 mm |
| Thickness | 13.4 mm | 14 mm | −0.6 mm |
| Weight | 89 g | 66 g | +23 g |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex Ultra better than Apex 2 Pro?
- Water resistance10 ATM vs 5 ATM2×
- AMOLED / OLED displayYes · Apex 2 Pro: No
- Resolution (width)454 px vs 260 px+75%
- Screen size1.39″ vs 1.3″+7%
- Pixel density326 ppi vs 200 ppi+63%
- GPS battery life (dual-band)28 h vs 24 h+17%
- Thickness13.4 mm vs 14 mm+4%
Why is Apex 2 Pro better than T-Rex Ultra?
- GPS battery life46 h vs 66 h+43%
- Battery life (smartwatch mode)20 days vs 21 days+5%
- Weight89 g vs 66 g+35%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 46 mm |
| Weight | 89 g | 66 g |
| Thickness | 13.4 mm | 14 mm |
| Height | 47.3 mm | 46.5 mm |
| Width | 47.3 mm | 46.1 mm |
| Case material | Plastic / polymer | Titanium |
| Sapphire crystal | — | Yes |
| Lens / cover glass | — | Sapphire Glass |
| Strap material | — | Silicone / Nylon |
| Water resistance | 10 ATM | 5 ATM |
| Water rating (maker) | — | 5 ATM |
| Display | ||
| Screen size | 1.39″ | 1.3″ |
| Display technology | AMOLED | Memory-in-pixel (transflective) |
| Panel | AMOLED | Touch Screen Always-On Memory LCD |
| AMOLED / OLED display | Yes | No |
| Always-on display | — | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 454 px | 260 px |
| Resolution (height) | 454 px | 260 px |
| Pixel density | 326 ppi | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 20 days | 21 days |
| Battery saver mode | 25 days | — |
| GPS battery life | 46 h | 66 h |
| GPS battery life (dual-band) | 28 h | 24 h |
| Battery capacity | 500 mAh | — |
| Charging | Magnetic charging base | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Temperature sensor | — | Yes |
| HRV tracking | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | — | Optical Heart Rate Monitor, Barometric Altimeter, Accelerometer, Gyroscope, 3D Compass, Thermometer ), Optical Pulse Oximeter, Electrical Heart Rate Sensor for HRV and Wellness Checks |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS, QZSS |
| Offline maps | — | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | — | Yes |
| Sport profiles | — | 36 |
| Connectivity | ||
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5 | — |
| Smart features | ||
| Music on the watch | — | Yes |
| Storage | — | 32 GB |
| Platform | ||
| Operating system | Zepp OS | — |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | — |
