Rough and Ready Design The Amazfit T-Rex Pro smart watch is a titanic combination of practicality, strength, and comfort. The clarity of the 1.3-inch HD AMOLED color screen, with its always-on display, ensures that you don’t have to halt your activity to check important information. The outer bezel undergoes a metal-spraying process, which enhances the rich textures of the light 60g watch body. The Amazfit T-Rex Pro smartwatch is accompanied by a skin-friendly silicone strap with a sweat-wicking design to ensure it stays dry and comfortable. 15 Military Standard Certified The shape of the Amazfit T-Rex Pro is tough and solid with distinct angles. Having passed 15 military-grade tests, the smartwatch can battle with you through hot deserts, humid rainforests, and polar glaciers. Witness endurance that braves the elements with ease. Heart Rate Monitoring The Amazfit T-Rex Pro fitness watch offers 24-hour heart rate monitoring and is able to provide instant alerts for all cases of high heart rate. Heart health is a top priority, and so your Amazfit T-Rex Pro smartwatch tracks it at all times, and can also record your heart rate variability (HRV) throughout the day, to monitor your body pressure. Learning to relax is the first step in protecting your health. Read more Tracks 16 Key Body Health Metrics With its high-precision data processing chip, the scale provides metrics for 16 body health indicators based on the basic information you enter, which helps you easily understand your overall physical condition. The scale can measure health data in either normal or sport mode to provide more accurate measurements for a wider range of users. FDA Listing Number: D410485