Amazfit GTR 3 Pro Black Smartwatch For Men and Women with built-in Alexa features a seamlessly bezel-less design which integrates with the curved glass screen. The large 1.45" HD AMOLED always-on display with 70.6% screen-to-body ratio, up to 1000 nit brightness and 331 PPI. Select from other 150 stylish watch face themes, 15 animated watch faces, or even upload your own personal photos. GTR 3 Pro includes the advanced 6PD BioTracker PPG 3.0 biometric sensor to track and record multiple health metrics simultaneously. Smart 24-hour monitoring of blood-oxygen levels, heart rate, in-depth sleep and breathing monitoring, track stress levels and even female menstrual cycles. The smartwatch can track heart rate, calories burned and other health metrics with the 150 built-in sports modes and smart recognition of 8 sports. GTR 3 Pro is compatible with the Zepp OS and has offline voice assistant function. Battery life of up to 12 days for typical usage, and 30 days using battery saver mode. Smartwatch Tracker Features