Weight[g] : 42 SIM Card Slot : Nano sim card Voice assistant built-in : no Bluetooth-compatible Version : NONE Wi-fi : YES Metrics measured : Blood Oxygen Monitor,Blood Pressure Monitor,Blood Sugar Monitor Activity Tracked : Steps Tracker,Distance Tracker,Activity Tracker Touch Screen : YES Category : Smart Watches App name : Setracker/Setracker2 Screen Material : LCD Band Detachable : Yes APP Download Available : Yes Battery Detachable : Yes CPU Manufacturer : MediaTek Resolution : 240X240 Display Size : 1.44 touch Screen Movement Type : Electronic Style : Healthy Screen Shape : Round Case Material : Precious Metals Band Material : Silica gel Waterproof Grade : Life Waterproof SIM Card Available : Yes Mechanism : Yes Multiple Dials : Yes GPS : Yes Network Mode : 4G Battery Capacity : >450mAh Rear Camera : 2MP RAM : 512mb ROM : 4GB System : Android Wear,Android OS Type : On Wrist Compatibility : All Compatible Language : English,Russian,Spanish,Polish,Portuguese,Turkish,ITALIAN,French,German,Korean,Japanese Function : Passometer,fitness tracker,sleep tracker,Message Reminder,Call Reminder,Answer Call,Dial Call,Remote Control,Push Message,Big Three Needles,24 hour instruction,Chronograph,Alarm Clock,Small Second,World Time,Permanent Calendar,Power Reserve,week,Month,Heart Rate Tracker,Noctilucent,Thermometer,Calendar,Lighting,Calculators Certification : CE,RoHS Blood pressure monitor : support Battery : 750mAh Supported Operate System : android 2.3 or above, IOS5.0 or above Languages support : Simplified Chinese,English,Russian GPS singal : L1,1575.42MHz C/A Positioning : GPS+Beidou+WIFI+LBS multi-mode positioning Heart rate function : Real time heart rate monitoring Camera : Supported MIC : Supported Waterproof : IP67 waterproof SOS button : support