I love this phone oppo f1s firstly I bought an oppo f1 plus then my father buy the f1s I tried the phone and it is very efficient in use and its specs are very good and the very most thing is its camera I love the camera of the phone and the processor and the memory also means in short this phone is the best phone now I am using the oppo f1 plus it is also an good phone from oppo it is very slim and very high performanced phone I am using it since 3 months but I could not seee any lag in any type of high end game or anything