Thinking of upgrading your iPhone 3GS to the iPhone 4 or thinking of getting the older 3GS over the latest model for price?

Here’s a head to head between the iPhone 4 vs iPhone 3GS.

Phone Model	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