A smartwatch with understated elegance for the fashion-conscious fitness enthusiast, The Amazfit GTR 3 Pro is the perfect combination of style and technology. Get the health data that matters to you more accurately and efficiently with the Amazfit GTR 3 Pro Smart Watch, you can test your heart rate, blood-oxygen saturation,in-depth monitoring of sleep & sleep breathing quality and female cycle tracking. With over 150 built-in sports modes to suit your choice of activity and enable smart recognition of 8 sports modes. Comes with Alexa built-in and the ability to receive Bluetooth calls. Featuring a 450 mAh large compacity battery to offer enough endurance to last for up to 12 days a single full-charge with typical usage. Water-resistance of up to 50 meters and support GPS, GLONASS, Galileo, BDS and QZSS satellite navigation systems .