The Amazfit T-Rex 3 Pro in Tactical Black is a rugged smartwatch designed for demanding environments and outdoor exploration. Its build combines a fiber-reinforced polymer case with Grade 5 Titanium for the bezel and buttons, protecting a 1.32" AMOLED display covered in sapphire glass. This screen reaches a peak brightness of 3,000 nits, ensuring that your data remains clearly visible even under direct, harsh sunlight. Equipped with Zepp OS 5, the watch supports 187 sports modes and advanced navigation tools like contour maps and route planning, aided by a circularly-polarized GPS antenna and six satellite systems. The BioTracker™ 6.0 PPG sensor monitors your heart rate, blood oxygen, and stress levels, while the integrated microphone and speaker allow for Bluetooth phone calls and Zepp Flow™ voice control. For those who venture underwater, it is certified for freediving and recreational scuba diving up to 45 meters, with a general water resistance of 10 ATM. A built-in two-color LED flashlight provides utility in the dark, complementing a lightweight design that weighs 46.8 g without its 20mm silicone strap. You can rely on the 500 mAh battery for up to 17 days of typical use or up to 86 hours in GPS Max Battery Life mode. It connects via Bluetooth 5.2 and Wi-Fi to Android 7.0+ or iOS 15+ devices, offering a QWERTY keyboard for replying to messages on Android.