Band Detachable : Yes APP Download Available : Yes Battery Detachable : No Resolution : 240*240 IPS Display Size : 1.28inch Movement Type : Electronic Style : Fashion Application Age Group : Adult Screen Shape : Round Case Material : Forged Carbon Band Material : Silica gel Waterproof Grade : Life Waterproof SIM Card Available : No Mechanism : No Multiple Dials : Yes GPS : No Network Mode : None Battery Capacity : 180-220mAh Rear Camera : None RAM : <128MB ROM : <128MB System : Android OS Type : On Wrist Compatibility : All Compatible Language : English,Russian,Spanish,Portuguese,Italian,French,German,Korean,Japanese,Ukrainian,Arabic Function : Passometer,fitness tracker,sleep tracker,Message Reminder,Call Reminder,Remote Control,Push Message,Alarm Clock,Heart Rate Tracker,Interactive Music,Calendar,Calculators Certification : NONE smart watches function:1 : Blood Pressure smart watches function:2 : Pedometer,Stopwatch smart watches function:3 : Music Control smart watches function:4 : Anti-lost smart watches function:5 : Notifications push smart watches function:6 : sleep monitoring smart watches function:7 : Multip sports mode smart watches function:8 : upport OTA upgrade smart watches function:9 : Blood Oxygen smart watches function:10 : Clock smart watches function:11 : Bluetooth Camera smart watches function:12 : Weather smart watches function:13 : SMS alerts push smart watches function:14 : sedentary reminder smart watches function:15 : call remind feature:1 : smart watch feature:2 : smart watch men feature:3 : smart watch women feature:4 : smart watch 2021 feature:5 : smart watch men android feature:6 : smart watch band