Band Detachable : Yes APP Download Available : Yes Battery Detachable : No Resolution : 240*240 Display Size : 1.28 inch Movement Type : Electronic Style : SPORT Application Age Group : Adult Screen Shape : Round Case Material : Alloy Band Material : Silica gel Waterproof Grade : Life Waterproof SIM Card Available : No Mechanism : No Multiple Dials : No GPS : No Network Mode : None Battery Capacity : 220-300mah Rear Camera : None RAM : <128MB ROM : <128MB System : None Type : On Wrist Compatibility : All Compatible Language : English,Russian,Spanish,Turkish,German,Korean Function : Passometer,fitness tracker,sleep tracker,Message Reminder,Call Reminder,Remote Control,Push Message,Chronograph,Alarm Clock,World Time,week,Month,Heart Rate Tracker,Interactive Music ylou Model : LS05 Origin : Mainland China Certification : NONE