To find out the difference between the Galaxy A51 and Galaxy A21 you should compare their specifications side by side.
To identify these differences you have to compare the following specifications:
– Galaxy A51 vs. Galaxy A21 Dimensions and Weight.
– Galaxy A51 vs. Galaxy A21 Processor (CPU and GPU Type).
– Galaxy A51 vs. Galaxy A21 Screen size and technology.
– Galaxy A51 vs. Galaxy A21 RAM and Storage Size.
– Galaxy A51 vs. Galaxy A21 Camera Specs.
– Galaxy A51 vs. Galaxy A21 Battery Life and Size.