The biggest competition these days is between the Iphone 5 and the Samsung S4:
The S4 has larger screen “5 inches 1080*1920 ” and better resolution than Iphone 5 “4 inches 640*1136”.
The S4 can handle 17 hrs talk time while the iphone 5 can only handle 8 hrs.
The S4 has memory (RAM) of 2 GB which is double of the new Iphone 1 GB.
The processors are similar.
s4 has 13 megapixels camera while the iphone has only 8 megapixels.
In general Samsung s4 is much better than any mobile phone in the stores today including the Iphone 5.