Hi friends I m using oppo F1S since last year and the performance is great as it has lolipop 5.0 android version but the major fault that company doesnt show and tell about its gpu. Yes I m talking about the graphics I played heavy games in this but withe the graphics I m not satisfied and the two variants F1S and F1S+ there is only difference of internal storage I recommend u to buy other android phone as compared to f1s or oppo series but if u want camera u can check sony nokia htc these are efforting companies in camera field.