vs
8.7Display6.5
9.6Health tracking8.3
9.5Sports & outdoor6.7
4.1Smart features3.2
9.0Build & durability5.1
Dimensions
Size comparison
T-Rex Dual SolarApproach S72 47mm
| T-Rex Dual Solar | Approach S72 47mm | Difference | |
|---|---|---|---|
| Height | 51.4 mm | 47 mm | +4.4 mm |
| Width | 51.4 mm | 47 mm | +4.4 mm |
| Thickness | 14.5 mm | 13.5 mm | +1 mm |
| Weight | 69 g | 48 g | +21 g |
Drawn to the same scale from the official dimensions (front and side).
Why is T-Rex Dual Solar better than Approach S72 47mm?
- Battery life (smartwatch mode)25 days vs 16 days+56%
- Water resistance10 ATM vs 5 ATM2×
- Sport profiles180 vs 95+89%
- Pixel density353 ppi vs 324 ppi+9%
- Resolution (width)466 px vs 454 px+3%
Why is Approach S72 47mm better than T-Rex Dual Solar?
- Weight69 g vs 48 g+44%
- Screen size1.32″ vs 1.4″+6%
- Thickness14.5 mm vs 13.5 mm+7%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 47 mm |
| Weight | 69 g | 48 g |
| Thickness | 14.5 mm | 13.5 mm |
| Height | 51.4 mm | 47 mm |
| Width | 51.4 mm | 47 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | Yes |
| Lens / cover glass | Sapphire glass | Sapphire crystal |
| Strap material | — | ComfortFit fabric |
| Water resistance | 10 ATM | 5 ATM |
| Water rating (maker) | — | 5 ATM |
| Display | ||
| Screen size | 1.32″ | 1.4″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | — | Yes |
| Touchscreen | Yes | Yes |
| Resolution (width) | 466 px | 454 px |
| Resolution (height) | 466 px | 454 px |
| Pixel density | 353 ppi | 324 ppi |
| Peak brightness | 3,000 nits | — |
| Battery | ||
| Battery life (smartwatch mode) | 25 days | 16 days |
| GPS battery life (dual-band) | 41 h | — |
| Battery capacity | 660 mAh | — |
| Battery type | — | Lithium ion |
| Solar charging | Yes | — |
| Wireless charging | — | No |
| Charging | — | Garmin proprietary plug charger |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Skin temperature | Yes | 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 | 180 | 95 |
| LED flashlight | Yes | Yes |
| Connectivity | ||
| NFC payments | — | Yes |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5.2 | — |
| ANT+ sensors | — | Yes |
| Smart features | ||
| Calls from the wrist | Yes | Yes |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Voice assistant | Yes | Yes |
| Music on the watch | Yes | Yes |
| Storage | — | 64 GB |
| Third-party apps | — | Yes |
| Platform | ||
| Operating system | — | Garmin OS |
| Platform | Proprietary | Proprietary |
| Works with | — | iOS, Android |
