General Specification Brand Lenovo Model HX03 Color Black, Red, Blue,Orange Compatible OS iOS 9.0+ Android 5.0+ bluetooth Version BT4.2 CPU Nordic52832 Language English Weight 20g Size Main part: 11.4(H)*19.3(W)*55.21(L)mm Strap: 280mm APP Download "Lenovo Health" from the Apple Store or Android Market Special Features Waterproof IP68 Heart Rate Monitor Support Sleep Monitor Support Pedometer Support Calories Support Distance Support Running Support Sedentary reminder Support Phone Finder Support Vibrating alarm Support Exercise Plan Support Caller or Message Show Support Technical Parameters Sreen Size: 0.87' Type: OLED Resolution: 128*32 Battery Battery Capacity: 90mAh Working Time: About 10 days HR Sensor HRS3300 G-Sensor 3D G-Sensor Charger USB direct Band Main Part: Plastic Strap:Silicone Package Included: 1* Lenovo HX03 Smart Band 1* User Manual 1* Warranty Card