I love samsung galaxy A series. A series is best because many people can't afford expensive phones but in A series you are able to enjoy features like the other expensive phones.
The first thing is its ram. A3 comes with 1.5 ram but A5 has a 2 gb of ram which is good. Now if you come at the display. Its 5.2 inches display is awesome. Also battery is upgraded which is capable to provide long battery life. The same thing n these two phone is the camera. Like samsung A3, Samsung A5 also has a 13 mp back and 5 mp front camera but the processor in A5 is upgraded to 1.6 GHz so you can play heavy games.
