2 x 2 x 1 inches

【TOUGHNESS FROM THE INSIDE OUT】The Amazfit T-Rex Pro comes with a 1.3″ HD AMOLED always-on color screen; The outer bezel undergoes a metal-spraying process, which enhances the rich textures of the light 60g watch body. Having passed 15 military-grade tests1, this smart watch can battle with you through hot deserts, humid rainforest and polar glaciers. Witness endurance that braves the elements with ease.
【YOUR PARTNER IN EXPLORATION】The Amazfit T-Rex Pro smartwatch is high-level exploration partner, supporting four global navigation satellite systems, a blood-oxygen saturation measurement system, a heart rate monitor, a sleep monitor, a weather tracker, a sunrise and sunset monitor, a current moon phase display, a compass and barometric altimeter.
【Ultra-long 18 Day Battery Life】When fully-charged, you can relax and enjoy up to 18 days of activity and progress with typical usage, or up to 9 days with heavy usage, or up to 40 hours with GPS continuous working mode. Go nonstop with T-Rex Pro watch！