Wasana Mobile - Specification overview Samsung Galaxy A21s is a Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) Phone from Samsung. Device runs on Android 10, One UI 2.0 powered by
SIM Card Tray and SIM Card Tray and Micro SD Card Tray for Samsung Galaxy A21s TF Card Tray for Samsung Galaxy A21s