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
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 :
Samsung Galaxy A21s Memory Cards and Accessories | MyMemory
Amazon.com: A21s Dual Sim Card Tray,MicroSD Card Slot Holder Replacement for Samsung Galaxy A21s A217 6.5 Inch (not ok for Single Version) (Black) : Cell Phones & Accessories
Replacing the card tray Galaxy A21s 2x Nano SIM and Micro SD | Fruugo US
Amazon.com: LIYONG Replacement Spare Parts SIM Card Tray + Micro SD Card Tray for Samsung Galaxy A21s Repair Parts (Color : White) : Cell Phones & Accessories