The high-resolution, 9.7 inch LED-backlit, IPS display on iPad is remarkably crisp and vivid. Which makes it perfect for web browsing, watching movies, or showing off photos. The Multi-Touch screen on the iPad uses the same technology thats in an iPhone. But for iPad, the technology has been completely reengineered for the larger surface, to make it extremely precise and responsive. To maximize battery life, Apple engineers took the same lithium polymer battery technology they developed for our notebook computers and applied it to the iPad. As a result, you can use iPad for up to 10 hours while surfing the web on Wi-Fi, watching videos, or listening to music