Gloryfit Fitness Watch

Bought 1 month ago..the face is too large for my arm. Band expands up to 10". Fitness Tracker, Phone Call, Sleep Monitor, Blood Oxygen (SpO2) Monitor, Heart Rate Monitor, Calorie Tracker, Alarm Clock, Stopwatch, Timer, Pedometer, Camera Control, Music Playback/Control, Sedentary Reminder, Weather, Waterproof, Notifications., 1)Fashionable Full Touch Screen Design with classic screen and HD glass screen (color on-screen display) 2)Adjustable grade silicone strap is healthy, environmentally friendly, and very comfortable to wear. 3)Excellent hiking watches / outdoor watch 4）All-day activity tracker. (Distance / steps / calories) 5）fitness tracker (breathing training / blood oxygen / heart rate / sleep monitoring