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
Amazon.com: Samsung 256GB Micro SDXC EVO Plus Memory Card with Adapter Works with Samsung Galaxy S7, Tab S7+ Tablet, A21s Smartphone (MB-MC256KA) Bundle with (1) Everything But Stromboli SD, TF Card Reader :