Asus zenfone ZE550ML is the one of the best phone ihave observed by me.This phone has 2 GB ram and 16gb internal storage and it contain 3000 mAh battary aswell as it also contain external storage up 256gb.But the phone take more than 4 hour to complete 100% charge.But the battary life is better upto one and half day.The camera clarity is poor compare to other hand set. It cantain gorrolla glass.scree clarity is good.The screen is 5.5 inches is to handle so good phone. It cantain1.8 GHz processore.