Brand Name:vivo Unlock Phones:Yes Thickness:Ultra Slim(<9mm)Band Mode:2SIM/Multi-BandsFeature:MP3 Playback,Fingerprint Recognition,Video Player,GPRS,Touchscreen,FM Radio,HD Video Player,Message,Wi-Fi,TV Receive,Bluetooth,Front Camera,Gravity Response,Email,GPS NavigationRelease Date:2018Operation System:AndroidCPU Manufacturer:QualcommRecording Definition:1080PSize:154.45x74.78x7.37mmDesign:BarROM:128GBattery Type:Not DetachableRAM:6GCamera:12.0MPCPU:Octa CoreCamera Type:3 CamerasSIM Card Quantity:Dual SIM CardsGoogle Play:NoBattery Capacity(mAh):3200mAhDisplay Color:ColorFront Camera:12.0MPTalk Time:According to usingLanguage:EnglishCellular:GSM/WCDMA/LTETouch Screen Type:Capacitive ScreenItem Condition:Newvivo Model:Vivo X21Display Resolution:2280x1080Language:ChineseOS:Android 8.1 This device is original OPPO R11 Factory Unlocked International model(China Model).Manufacturer may not include a US warranty as devices are international items,we supply 1 year manufacturer warranty in China.Phone Network Frequency,please confirm support network frequency of the phone Whether can used in your country. Visit local network provider/carrier or email us. (Go=>search keywords "List of LTE networks" at website "en.wikipedia.org/wiki/Main_Page" Or contact us.)