LYF flame 1 is very good for 4g and its gives a free sim named jio.The sim gives free data and free voice calls, video calls, free msgs etc. Its design and style is as good as the price of this mobile. Its sound resception is mind blowing very good sound. The mobile is very easy to use as like another android lolipop smart phone. Feature of these mobile are as follow: -android version 5.1.1 lolipop, screen size-4.50 inch, storage 8gb, ram 1gb, battery capacity 2000mAh. It is very trusted phone ever I seen. It is cheaf mobile as it is 4g mobile, the price of the mobile is only 4999 I mean five thousand rupees only.