The Samsung A21s Dual Sim features a 6.5-inch PLS TFT capacitive touchscreen. It runs on the Android operating system and is unlocked to any network. The phone includes a triple tray slot, accommodating dual SIM cards and a microSD card for expandable storage. With 4GB of RAM, the phone offers smooth multitasking and efficient performance. The quad-camera setup consists of a 48MP, 8MP, 2MP, and 2MP rear-facing camera, allowing for versatile photography options. For selfies, it features a 13MP front-facing camera. The phone includes a fingerprint scanner for secure and convenient unlocking. It provides essential features and functionality at a competitive price.