Worst mobile phone. Why? Here is the reason, mobile phone has nice looks & style but everything does not matter on style looks or apple logo the phone should have good processor, the phone should not hang, camera should be good, screen size should be big like ( 4.5 or 4.7 are the normal sizes which are handy as well as easy to use) but iphone 4 has many problem's like it hangs many times it has a processor problem, mobile phone heats, sound is ok ok, some application doesn't work, camera quality is good ( not very good but ya good) , slow processor times to load and main problem apple does not give extra space for external sd card so somewhere because of space also it hangs and takes time to process. ( Guyzzz this is my own view/review of iphone 4, so please don't take it as any offence)