B08C2KB5K1 Smart Watch, 1.3-inch Large-Screen Fitness Tracking Recorder and Sleep Monitor, IP68 Waterproof, synchronous Messages for Android and iOS, with GPS and Bluetooth Calls (Black Gray)

??Super battery life matching, 360mAh body battery with 400mAh charger, which makes your watch use longer
??GPS, built-in GPS function, you can accurately record your own long-distance trajectory without using a smart phone when outdoor sports
?? Rotary button control, unique rotary button design, you can click or rotate the button to perform various operations and use on the watch, compared with the traditional click and touch operation, it is faster and more convenient.
??Attention?his fitness Tracker Watch compatible with Andrid 4.4 or above, IOS 8.0 or above and Bluetooth 4.0 can be used in the corresponding smart phone.