Oppo f1s is best smartphone now in 2017 and has a huge demand in market .there has a good front and rear cemra best one front has great picture quality . its previous version is 3 gb ram with 32 gb internal and new latest one is 4 gb ram coupled with 64 gb internal storage . all things of f1s great but it has Mediatek processor which is not great thing . so my opinion is go for it but if you want best smartphone for gaming not buy this .