Dimensions
Size comparison
T-Rex 3Enduro 3
| T-Rex 3 | Enduro 3 | Difference | |
|---|---|---|---|
| Height | 48.5 mm | 51 mm | −2.5 mm |
| Width | 48.5 mm | 51 mm | −2.5 mm |
| Thickness | 13.8 mm | 15.7 mm | −1.9 mm |
| Weight | 68 g | 63 g | +5 g |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex 3 better than Enduro 3?
- AMOLED / OLED displayYes · Enduro 3: No
- Sport profiles177 vs 97+82%
- Screen size1.5″ vs 1.4″+7%
- Resolution (width)480 px vs 280 px+71%
- Pixel density322 ppi vs 200 ppi+61%
- Thickness13.8 mm vs 15.7 mm+14%
Why is Enduro 3 better than T-Rex 3?
- Battery life (smartwatch mode)27 days vs 36 days+33%
- Battery saver mode40 days vs 92 days2.3×
- Weight68.3 g vs 63 g+8%
Specifications
Side by side
| Design & durability | ||
| Case size | 48 mm | 51 mm |
| Weight | 68.3 g | 63 g |
| Thickness | 13.8 mm | 15.7 mm |
| Height | 48.5 mm | 51 mm |
| Width | 48.5 mm | 51 mm |
| Case material | Stainless steel | Titanium |
| Sapphire crystal | — | Yes |
| Lens / cover glass | Gorilla Glass | Power Sapphire™ |
| Strap material | — | ultra light-weight elastic nylon hook & loop |
| Water resistance | 10 ATM | 10 ATM |
| Water rating (maker) | — | 10 ATM |
| Display | ||
| Screen size | 1.5″ | 1.4″ |
| Display technology | AMOLED | Memory-in-pixel (transflective) |
| Panel | AMOLED | Sunlight-visible, transflective memory-in-pixel |
| AMOLED / OLED display | Yes | No |
| Always-on display | — | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 480 px | 280 px |
| Resolution (height) | 480 px | 280 px |
| Pixel density | 322 ppi | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 27 days | 36 days |
| Battery saver mode | 40 days | 92 days |
| GPS battery life | — | 120 h |
| GPS battery life (dual-band) | — | 60 h |
| Battery capacity | 700 mAh | — |
| Battery type | — | Lithium ion |
| Solar charging | — | Yes |
| Wireless charging | — | No |
| Charging | Magnetic charging base | Garmin proprietary plug charger |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Skin temperature | — | Yes |
| Temperature sensor | Yes | Yes |
| HRV tracking | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | — | GPS, GLONASS, Galileo, QZSS, BeiDou, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Ambient light sensor |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS, QZSS |
| Offline maps | Yes | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | — | Yes |
| Sport profiles | 177 | 97 |
| LED flashlight | — | Yes |
| Connectivity | ||
| NFC payments | — | Yes |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5.2 | — |
| ANT+ sensors | — | Yes |
| Smart features | ||
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | Yes |
| Storage | — | 32 GB |
| Third-party apps | — | Yes |
| Platform | ||
| Operating system | — | Garmin OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | iOS, Android |
