What phone to buy?

I myself bought a chinese phone that is a lot better than these 2 that you are comparing, it's called ZTE Nubia Z7 Mini. Now if you really want to choose one of these 2 phones than ofcourse the S4. The S3 is not an outdated phone but the S4 has more capabilities than the S3

I dont know about phones lol

samsung galaxy s4 because it have better performance than s3

samsung galaxy s4 is better, but i will always stick to my iphone man....

hmm iphone it's iphone but not samsung ^^

I'm really glad with my LG G3

It has a good performance, it's easy to root and has a powerful camera.

You can check on websites like gsmarena for more info.
The S4 is better but ofc it will cost you more.

Buy an HTC and you'll fall in love with it.

don't buy Samsung
go to LG or one plus

gotta be a s5 or s5 mini samsung are great s6 is bad as you aint got a memory card slot