Amazfit T-Rex Ultra 2 has been launched in global markets with Bluetooth calling support and a 1.5-inch AMOLED display. The rugged smartwatch has a 10 ATM water resistance rating and is said to deliver up to 50 hours of battery life with GPS tracking. It supports 187 sports modes and features 64GB of onboard storage. It monitors heart rate, blood-oxygen saturation (Sp…Amazfit T-Rex Ultra 2 has been launched in global markets with Bluetooth calling support and a 1.5-inch AMOLED display. The rugged smartwatch has a 10 ATM water resistance rating and is said to deliver up to 50 hours of battery life with GPS tracking. It supports 187 sports modes and features 64GB of onboard storage. It monitors heart rate, blood-oxygen saturation (Sp…