I am using this awesome smart mobile phone. Its features is very good and oppo f1s’s camera is really good than other companies smart phone. Its front camera is 16 mega pixel but its back is 13 mega pixel, best smart phone under 20 thousand rang and I am using this phone for 6 months. My experience for oppo f1s is fabulous, its a awesome smart phone for new generations. Its phone storage 32 or 64 gb and expendable memory is 128 gb, its enough space for store any document, data. I love this phone very much.