Fangrui Product Details Battery Life : 7days Dial Window Material Type : Hardlex Band Lengthmm : 210 Band Widthmm : 22 Sim Card Slot : No Voice Assistant Built-in : Yes Bluetooth-compatible Version : 5.3 Metrics Measured : Heart Rate Monitor,other,blood Oxygen Monitor,sleep Monitor,blood Pressure Monitor Activity Tracked : Other,steps Tracker,distance Tracker,activity Tracker Touch Screen : Yes Category : Smart Watches App Name : Rdfit Screen Material : Amoled Cpu Model : Ats3085l Model : Dm58 App Download Available : Yes Battery Detachable : No Cpu Manufacturer : Mediatek Movement Type : Electronic Style : Fashion Band Material : Silica Gel Waterproof Grade : Professional Waterproof Sim Card Available : No Mechanism : Yes Multiple Dials : Yes Gps : Yes Network Mode : None Rear Camera : None Rom : 256mb System : Android Wear,proprietary Os,android Os,ios,wear Os,color Os,harmonyos,freertos,wacth Os,zepp Os,duwear,tizen Os Type : On Wrist Compatibility : All Compatible Language : English,russian,spanish,polish, Portuguese,turkish,italian,french,german,norwegian,korean,japanese,ukrainian,hebrew,dutch,arabic,indonesian,greek Function : Shock Resistant,passometer,fitness Tracker,sleep Tracker,message Reminder,call Reminder,answer Call,dial Call,remote Control,push Message,tourbillon,big Three Needles,24 Hour Instruction,chronograph,alarm Clock,small Second,world Time,permanent Calendar,multiple Time Zone,gmt Two Places,perspective Window,week,month,moisture Measurement,heart Rate Tracker,interactive, Music,noctilucent,calendar,compass,lighting,countdown,calculators