Instagram degrades picture quality?

[max1]

I know it degrades... but to compare 2 pics taken from my friend's Iphone and a samsung galaxy note of mine, why does mine degrades much worse?! You could literally see the pixels and it is not sharp at all. Where else, the pic uploaded and taken from an iphone is way less pixelated.

Im pretty sure it's not about the phone's cam quality. Cuz i compared both of the ori pics and galaxy note's pic has way better quality


any tips on how i can overcome this problem?

is it better to snap the pic from the app, or directly from your phone's camera?