The Lyf F1S mobile features a 5.2 ( 13.21 cm) display and runs on Android v6.0 ( Marshmallow) operating system. The device is powered by a Octa core ( 1.8 GHz, Quad core, Cortex A72 + 1.4 GHz, Quad core, Cortex A53) processor paired with 3 GB of RAM. As far as the battery is concerned it has 3000 mAh. Over that, as far as the rear camera is concerned this mobile has a 16 MP camera.It is the best phone in this price only finger print sensor is missing but it is not necessary for all at the end I just say its awesome mobile not only for normal it is also for heavy users who like to play heavy game. So if you think to buy this phone don’t think just go and buy it and one more thing LYF service centers is also wildly available in india which gives a nice services . I hope you like my review, ThanksI purchased it from AJIO reliance website, battery backup excellent, battery charging very fast, touch very smooth like butter, call quality, call voice very clear loud, speaker voice loud and clear, new tech of boost internet speed works very well with airtel 4g and jio 4g, camera flash very well in indoor clicks, main camera excellent, front camera good in outdoor clicks but little dark in indoor.at this price 32gb internal memory, 3gb ram, 3000mah battery with excellent camera I feel its a worth purchase, iam totally happy with this mobile.