At a Glance: The new iPad vs. older models

(AP) - Apple starts selling its new iPad in the U.S. and several other countries on March 16. Here's a look at the key differences between the new iPad, the iPad 2 and the original iPad.

New iPad tech specs:

• Prices: 16-gigabyte Wi-Fi-only model for $499, 32 gigabytes for $599 and 64 gigabytes for $699. 4G models cost $130 more.
• Screen size: 9.7 inches diagonally
• Thickness: 0.37 inch
• Weight: 1.44 pounds (1.46 pounds for 4G model)
• Screen resolution: "Retina display," 2048 by 1536 pixels
• Cameras: 5-megapixel camera on back and a low-resolution camera on front, for videoconferencing
• Video recording: high-definition (1080p — comparable to the resolution of a 40-inch flat-panel TV), up to 30 frames per second with audio
• Battery life: 10 hours.
• Dual-core A5X processor (quad-core graphics subsystem)
• U.S. wireless carriers: AT&T, Verizon Wireless
• U.S. release date: March 16, 2012

iPad 2 tech specs:

• Prices: 16-gigabyte model with Wi-Fi for $399, 3G-capable version for $529 (Originally same as new iPad pricing)
• Screen size: same as new iPad
• Thickness: 0.34 inch
• Weight: 1.33 pounds (1.35-1.36 pounds for 3G models)
• Screen resolution: 1024 by 768 pixels
• Cameras: High-definition (720p) camera on back and a low-resolution camera on front, for videoconferencing
• Video recording: high-definition (720p — comparable to the resolution of a 40-inch flat-panel TV), up to 30 frames per second with audio
• Battery life: 10 hours.
• Dual-core A5 processor
• U.S. wireless carriers: AT&T, Verizon Wireless
• U.S. release date: March 11, 2011

Original iPad tech specs:

• Prices: No longer on sale. Originally same as new iPad
• Screen size: same as new iPad
• Thickness: 0.50 inch
• Weight: 1.5 pounds
• Screen resolution: same as iPad 2
• Cameras: none
• Video recording: none
• Battery life: 10 hours.
• Single-core A4 processor
• U.S. wireless carriers: AT&T
• U.S. release date: April 3, 2010