Oppo f1s 64gb is a very good phone with 4gb ram and a good speed. oppo company is also to good they have they customer service center almost in every district of state. this phone has 3075 Mah battery which can be used up to whole day with even charging and has 5.5 inch screen also this phone has a slot for memory card. the camera quality of phone is also to awesome it has f2.2 with 13 MP primary camera and 16 MP with f2.0 secondary camera.it has a fingerprint sensor on front mounted button. but a problem is this that this phone has a low resolution of 720*1280 no other issue I have found in this. sound quality awesome style and design best feels good on touch and moreover this phone has everything which a gaming user want .