Key Features Voice assistant built-in:YES Bluetooth-compatible Version:5.0 Wi-fi:no Metrics measured:Heart Rate Monitor Activity Tracked:Steps Tracker Touch Screen:YES Category:Smart Watches Screen Material:TFT Band Detachable:Yes APP Download Available:No Battery Detachable:No Movement Type:Automatic Style:Fashion Application Age Group: Screen Shape:Square Case Material:Alloy Waterproof Grade:Life Waterproof SIM Card Available:No Mechanism:Yes Multiple Dials:Yes GPS:No Network Mode:None Battery Capacity:220-300mah Rear Camera:None RAM:<128MB ROM:<128MB System: OS,IOS Type:On Wrist Compatibility:All Compatible Language:English,n,Spanish,Polish,Portuguese,Turkish,ITALIAN,French,German,Norwegian,Japanese,Ukrainian,Hebrew,Dutch,Arabic,Indonesian,Greek Ftion:Passometer,fitness tracker,sleep tracker,Mood Tracker,Message Reminder,Call Reminder,Answer Call,Dial Call,Push Message,24 hour instruction,Chronograph,Alarm Clock,Heart Rate Tracker,Interactive Music Origin:Mainland China