Its much more better than s6 beacuse its water proof and its camera is awesome. No other divice like this.i am also using iphone 6 but thi is faster than iphone.if buying this phone then u have no need to buy a dslr camera. Its camera quality is too much.for selfie lover its a very good phone bcause its camera is open just in .3 sec and capture images very fast.
Sound quality is very good in its music player u got 8 types of equaliser like consert hall live music and cafe shop in some words if have this mobile then u have no need buy other things like iphone 6s and nexus