I am user of samsung s4 iam sharing experience with you .Samsung s4 is a light weight and it has good screen resolution 1080×1920.screen resolution is good.it has a good sound.it has 2 gb ram .it has internal space 16gb.it has battery capacity 2600. Battery is not upto mark.
It has a battery backup of 1 day without use of wifi and network.
The connectivity of wifi is very fast.
It can have upto 128gb of external memory.
Unlike other phones it doesnt get hanged easily.
Always it is the best phone from my side.
Its the best phone in the range of 20000.
The only disadvantage in this mobile is its single sim
So it can only be used for officials