Amazfit GTR 4 Smart Watch for Men Android iPhone, Dual-Band GPS, Alexa Built-in, Bluetooth Calls, 150+ Sports Modes, 14-Day Battery Life, Heart Rate Blood Oxygen Monitor, 1.43”AMOLED Display,Black
- ...agement】The Amazfit GTR 4 smart watch debuts the new BioTracker 4.0 PPG biometric sensor, you can enjoy more accurate 24-hour monitoring of heart rate, blood-oxygen saturation and stress levels. The heath tracker watch can also detect your breathing rate, and is able to quickly measure these four important health metrics in one easy tap..
- 【Power that Goes the Distance】Crush your professional and workout goals for up to two weeks at a time,and the smart watch's new Battery Saver Mode even enables continued use of features like sports modes, measurement of health metrics, and more, all while saving power..
- 【The Ultimate Personal Assistant】Amazon Alexa Built-in and support Offline Voice Assistant. Via Bluetooth connection to your phone, the watch can be used to receive and answer phone calls. Easily add membership and club card codes from your favorite stores to the watch for simplified shopping..