Specifications: Product type Smartwatch mark IMILAB (Xiaomi company) Model KW66 Color Green Housing material Others of Zinc Style Elegant, Casual operating Touch Screen + 1 button Compatible operating system Android 5.1 / iOS 9.0 or later Language English, French, German, Italian, Spanish, Japanese, Chinese Fastening type Buckle Operating ambient temperature-20C - 45C Bracelet dimensions 262 x 22mm Housing dimensions 45.3 x 12.7 mm Weight54g Hardware Bluetooth V5.0 sensors Heart rate Waterproof IP68 Display Type 3D curved TFT HD For Round Diagonal 1.28 inch Resolution 240 x 240 px Battery Type Lithium-ion Capacity 340 mAh Loading type Magnetic Operating time 15 days Standby time 30 days Functions Pedometer Yes Heart rate Yes Moisturizing reminder Yes Sleep monitoring Yes Memento Yes GPS Not Multi-Sports Walking, Running, Cycling, Mountaineering, Yoga, Rope Jumping, Tennis, Baseball, Soccer, Basketball, Rugby, Table Tennis, Badminton Displays caller ID Yes Notifications Yes Other functions Music control, Weather, Find phone, Stopwatch, etc. Package contents 1x Smartwatch Xiaomi IMILAB KW66 1x Charging Dock 1x User Manual.