To find out the difference between the Galaxy A51 and Galaxy S9 Plus you should compare their specifications side by side.
To identify these differences you have to compare the following specifications:
– Galaxy A51 vs. Galaxy S9 Plus Dimensions and Weight.
– Galaxy A51 vs. Galaxy S9 Plus Processor (CPU and GPU Type).
– Galaxy A51 vs. Galaxy S9 Plus Screen size and technology.
– Galaxy A51 vs. Galaxy S9 Plus RAM and Storage Size.
– Galaxy A51 vs. Galaxy S9 Plus Camera Specs.
– Galaxy A51 vs. Galaxy S9 Plus Battery Life and Size.