Apple's champion smartphone is now 9.3mm thin and adorned with a stunning hi-res "retina" display,but that's just the start.It sports a 1Ghz A4 processor(as used in the iPad), built-in noise cancelling, a 5MP camera with HD video capture and a new glass sandwich form that,for better or worse,wears its metal antenna on the outside.
In our long-tests we've found no major downturn in signal reception compared to the 3GS,but the metal rim does make it less comfortable in the hand.
The 4 is also more aware of its position and movement than ever, with a three-axis gyroscope joining the accelerometer and compass to allow for six-axis motion control. This is no lazy product refresh.
The hike in processing speed is immediately evident;it sometimes feels as though the phone is preempting your direction.As for the screen, the Galaxy S has the more striking palette, but when it comes to text and maps, the iPhone's 326ppi resolution is razor-sharp.
Aside from that it's all good.The App Store is so far ahead of its rivals in both quantity and quality that it's in a league of its own, and untill the Android Marketplace gets its act together,so shall it remain,Apple's best phone by a long shot.