Android 4.2, Jelly Bean improves on the speed and simplicity of Android 4.1 and includes all new features – Photo Sphere and a completely redesigned camera app, new Gesture Typing keyboard, Google Now with all new cards, and much more.
Everything in Jelly Bean feels fast, fluid, and smooth. Moving between home screens and switching between apps is effortless, like turning the pages of a book.
Jelly Bean improves performance throughout the system, including faster orientation changes, quicker switching between recent apps, and smoother and more consistent rendering across the system through vsync and triple buffering.
Jelly Bean has more reactive and uniform touch responses, and makes your Android device even more responsive by boosting your device’s CPU instantly when you touch the screen, and turns it down when you don’t need it to improve battery life.
Accessibility
New Triple tap to enter full screen magnification when you enable 'Magnification gestures'.
New Enable ‘TalkBack’, a screenreader for Android, right from the power menu.
With Jelly Bean, blind or low vision users can use 'Gesture Mode' to reliably navigate the UI using touch and swipe gestures in combination with speech output.
With the new accessibility focus feature, you can move a cursor between controls to maintain a target for the next action or a source for the next navigation event. You can double tap anywhere to launch the current item with accessibility focus.
Text traversal in accessibility now gives you more control – choose to move between pages, paragraphs, lines, words or characters.
TalkBack now supports gestures to trigger actions, to navigate applications, and traverse text.
Android now offers full support for braille accessibility services (download BrailleBack on Google Play)
