Specification: 1.Model No.:S21 Ultra 2.Platform : MTK6889 3.Standby: Dual sim dual standby(A slot support SIM card, another slot support SIM card or TF card) 4.Screen: 7.3 HD+ Full Display 1440*3200 5.Speaker: 1511 Box Speaker 6.Frequency:GSM850/900/1800/1900MHz,3G:WCDMA850/1900/2100MHz,4G LTE 5G 7.Vibration: Support 8.Colors: Green/Silvery/Golden 9.Memory: 8GB RAM+512GB ROM 10.Multi Media: MP3/MP4/3GP/FM Radio/Bluetooth 11.Camera: 24MP+48MP 12.Multi Function: Full screen, Face recognition, Dual SIM, Wifi, GPS, Gravity Sensor, Alarm ,Calendar ,Calculator ,Audio recorder ,Video recorder, WAP/MMS/GPR, Image viewer,E-Book,World clock,Tasks card rear flash IML rear cover 13.Languages: Multi-language support 14.Others: Android OS 10.0 System 15.Battery:6800Mah Lithium-ion battery