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
Internal storage a21s move apps to sd card - Samsung Community
How to Insert Sim cart| SD cart in Samsung Galaxy A21S |Memory card slots |MicroSD card| Nano SIM - YouTube
Memory Cards for Samsung Galaxy A21S
Samsung A21S how to put Sim card and SD card - YouTube
Samsung Galaxy A21s review - GSMArena.com tests
How to EJECT SIM CARD on Samsung Galaxy A21S - YouTube