I recently purchased the redmi 4A phone.its feature found too great at this price I was shocked clearity of the display is just awesome It has RAM of 2 GB internal 16 GB space we can use either sd card or second sim card not use at a time both. If we talk about its camera it has 13 MP rear and 5 MP front camera. Display size is 5 inch battery back up is also good it has inbuilt battery non removable of 3120 mah capacity.