Samsung Galaxy A21 runs Android 10 and is powered by a 5000mAh non-removable battery. The Samsung Galaxy A21s supports proprietary fast charging. The rear camera of the smartphone consists of a 48 MP (wide) + 8 MP (ultrawide) + 2 MP (macro) + 2 MP (depth) while on the front there is a 13 MP (wide) camera for shooting selfies. The smartphone is available in various color options such as Black, White, Blue, and Red.