Voice assistant built-in : NO Bluetooth-compatible Version : 5.0 Metrics measured : Heart Rate Monitor,Sleep Monitor,Blood Pressure Monitor,Body Temperature Monitor Activity Tracked : Steps Tracker,Distance Tracker,Calorie Tracker,Activity Tracker Touch Screen : YES Category : Smart Watches App name : Gloryfit Band Detachable : Yes APP Download Available : Yes CPU Manufacturer : Ingenic Resolution : 240*280 Display Size : 1.85inch Movement Type : Electronic Application Age Group : Adult Screen Shape : Square Case Material : Forged Carbon Waterproof Grade : Life Waterproof SIM Card Available : No Mechanism : No Multiple Dials : Yes GPS : No Network Mode : None Battery Capacity : 300-450mah Rear Camera : None RAM : <128MB ROM : <128MB System : Android Wear Type : On Wrist Compatibility : All Compatible Language : English,Russian,Spanish,Polish,Portuguese,Turkish,Italian,French,German,Japanese,Dutch,Arabic,Indonesian,Greek Function : Passometer,fitness tracker,sleep tracker,Message Reminder,Call Reminder,Remote Control,Push Message,Big Three Needles,24 hour instruction,Chronograph,Heart Rate Tracker,Interactive Music,Noctilucent,Calendar,Calculators Certification : CE,FCC Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store