Voice assistant built-in : no Bluetooth-compatible Version : 3.0 and 5.1BLE dual mode Metrics measured : Heart Rate Monitor,Sleep Monitor Activity Tracked : Other Category : Smart Watches Band Detachable : Yes Battery Detachable : No Screen Shape : Square Waterproof Grade : Life Waterproof SIM Card Available : No Mechanism : No Multiple Dials : No GPS : No Network Mode : None Battery Capacity : 180-220mAh Rear Camera : None RAM : <128MB ROM : <128MB System : None Type : Wearable Compatibility : All Compatible Language : English,Russian,Spanish,Polish,Portuguese,Turkish,ITALIAN,French,German,Norwegian,Korean,Japanese,Ukrainian,Hebrew,Dutch,Arabic,Indonesian,Greek Function : Passometer,fitness tracker,sleep tracker,Message Reminder,Call Reminder,Answer Call,Dial Call,Alarm Clock,Heart Rate Tracker,Calculators Brand Name : YTOM Origin : Mainland China