Comparing Features: iPad 3 vs. iPhone 4S vs. iPod touch

At first glance, the iPad 2, third-generation iPad, iPhone 4S, iPhone 4, and iPod touch may look very similar to each other. After all, they use the same operating system, run the same apps, and look like larger and smaller versions of each other. But are they really the same?
A close look at the hardware and software features of each device reveals them to be very different indeed. One is a phone, the others aren't. One offers a big screen, the others are palm-sized.
The chart below shows how these three devices stack up against each other in terms of hardware and software features.

Comparing Features: Third-gen iPad, iPad 2, iPhone 4S, iPhone 4, and iPod touch

	3rd Gen. iPad	iPad 2	iPhone 4S	iPhone 4	4th Gen. iPod touch
review	4.5 stars	review	4.5 stars	4 stars	4.5 stars
capacity	16 GB, 32 GB, 64 GB	16 GB, 32 GB, 64 GB	16 GB, 32 GB, 64 GB	8 GB	8 GB, 32 GB, 64 GB
screen size/ resolution	9.7 inches 2048 x 1536	9.7 inches 1024 x 768	3.5 inches 960 x 480	3.5 inches 960 x 480	3.5 inches 960 x 480
GPS	Yes (limited on Wi-Fi-only models)	Yes (limited on Wi-Fi-only models)	Yes (Assisted GPS)	Yes (Assisted GPS)	No
battery life (in hours)	10	10	8 talk 9 Wi-Fi 10 video 40 audio	10 talk 10 Wi-Fi 10 video 40 audio	7 video 40 audio
networking	Wi-Fi optional 4G	Wi-Fi optional 3G	Wi-Fi 3G/EDGE	Wi-Fi 3G/EDGE	Wi-Fi
bluetooth	Yes	Yes	Yes	Yes	Yes
camera	2 cameras 5 megapixel & 1080p HD video	2 cameras, 720p HD video & VGA	2 cameras 8 megapixel & 1080p HD video	2 cameras 5 megapixel & 720p HD video	2 cameras 720p video
FaceTime	Yes	Yes	Yes	Yes	Yes
video out to TV	1080p HD	1080p HD	720p	No	Yes
Siri	Limited	No	Yes	No	No
phone	No	No	Yes	Yes	No
size (in inches)	9.5 x 7.31 x 0.37	9.5 x 7.31 x 0.34	4.5 x 2.31 x 0.37	4.51 x 2.31 x 0.37	4.4 x 2.3 x 0.28
weight (in pounds)	1.44 (1.46 on 4G models)	1.3 (1.34-1.35 on 3G models)	0.31	0.3	0.22
price	$499 - $829	$399	$199-$399	$99	$229 - $399