Longer but not wider
This is the first feature that strikes you: the longer body. But Apple keeps the iPhone 5 both a pocketable and (for most) a one-handed device: 0.30 inches thick, 2.31 inches wide and 4.87 inches tall, weighing 3.95 ounces. Compared to iPhone 4S: 0.37 inches wide, 4.5 inches tall, 2.31 inches wide, weighing 4.9 ounces. Apple says the new phone also is 12% smaller volumetrically.
The phone is in two colors: black with slate back, and white with silver back.