Amazfit gtr 3 black smartwatch for men and women with built-in alexa; smart health made easy. Select from a wide selection of over 100 stylish and 8 editable watch face themes. 15 advanced watch face themes can even be edited or personalized with your own photos. 6pd biotracker ppg 3. 0 biometric sensor features heart rate monitoring, blood-oxygen saturation, sleep breathing monitoring, stress-level and female menstrual cycle tracking. The smartwatch also features over 150 built-in sports modes and smart recognition of 8 sports. 5 atm water-resistance to cover all your water activities with ease. Gtr 3 is also compatible with zepp app along with offline voice assistant. Smart functions such check the weather and calendar, bluetooth phone camera control, alarm and world clock, stopwatch, password protection, do not disturb mode and many more. Powerful battery provides up to 21 days battery life and 35 hours of gps continuous usage. Smartwatch tracker features