iPhone 4 vs. iPhone 3GS

Apple's claiming that the iPhone 4 represents the platform's biggest advance since the original model's intro back in 2007 -- but does the argument hold water? Follow the break for a comprehensive rundown of the key differences between the newest member of the iPhone model and last year's king of the hill, the 3GS!

iPhone 4

iPhone 3GS

Price (on contract)	$199 16GB, $299 32GB	$99 8GB
Processor	Apple A4	600MHz, Cortex-A8 architecture
Display	3.5-inch IPS 960 x 640	3.5-inch 480 x 320, no IPS
Primary camera	5 megapixel AF with flash	3 megapixel AF
Secondary camera	VGA	No
Video recording	720p at 30fps, optional iMovie	VGA at 30fps, basic editing capabilities built-in
Cellular	Quadband GSM, pentaband HSPA	Quadband GSM, triband HSPA
WiFi	802.11b/g/n	802.11b/g
Orientation sensing	Accelerometer, compass, gyroscope	Accelerometer, compass
FaceTime video calling	Yes	No
SIM standard	Micro SIM	SIM
Battery life	Up to 7 hours talk time on 3G, 14 hours on 2G Up to 10 hours data on WiFi Up to 40 hours audio Up to 10 hours video	Up to 5 hours talk time / data on 3G, 12 hours on 2G Up to 9 hours data on WiFi Up to 30 hours audio Up to 10 hours video
Weight	137 grams / 4.8 oz.	135 grams / 4.76 oz.
Dimensions	115.2 x 58.6 x 9.3mm	115.5 x 62.1 x 12.3mm