This is one of the best mobile in this price.i have been using xiaomi redmi mobiles for 2 years.i not yet seen any problem with that.and not yet heard any issues about xiaomi redmi cells.i have redmi 2 mobile.my brother has xiaomi redmi 4A cell.he told me that its battery backup is good, size of the scree is also good.smooth display.very good looking.important thing redmi cells are not gonna hang.this is one of the major advantage compare to other cells.pls follow redmi product.they are worthfull