Samsung S21 support sd card
From what im reading the s21 ultra doesnt have an sd card slot samsung has stopped putting a sd card slot on their phones.
6 Best USB-C SD Card Readers That You Can Buy - Guiding Tech
As long as the device has an SD card slot, you can finish SD card setup on that device with ease. Well, do iPads have SD card slots?
Mobile Phones with expandable memory in India with Price (30th ...
SD card slots in Android phones are becoming increasingly rare with each new generation. They're often now limited to just mid-range or budget devices.