Android Jelly Bean 4.1's benefits include a new notification system, Google Now integration, home screen widgets and improved Google apps. Built-in Google apps with new features in Jelly Bean 4.1 include Google+, YouTube, Gmail and Chrome.
Additional new features in Jelly Bean 4.1 include Android Beam file transfers, support for external USB devices, improved accessibility and support for more languages. This is the first version of Android to support bi-directional text input, allowing users to input both left-to-right and right-to-left languages.
Version 4.1 is the first version of Android Jelly Bean. The two subsequent versions, Jelly Bean 4.2 and Jelly Bean 4.3, both introduce further improvements to the operating system. New features found in 4.2 include new Bluetooth and near field communication software, support for multiple displays and security improvements. Jelly Bean 4.3's improvements include improved power management for Bluetooth, updates to 3-D graphics and better app integration with notifications.
All versions of Jelly Bean run on both phones and tablets, and Jelly Bean 4.3 contains specific improvements for both types of device. Tablets running this version of Jelly Bean have access to parental controls and restricted profiles, while phones can auto-complete phone numbers or contact names directly from the telephone dial pad.