Restricted profiles for tablets
Lightweight and portable, tablets are perfect for sharing with others. Last October we added support for multiple users. Each person has a separate space and can freely customize the tablet experience, from lockscreen to wallpaper, apps and folders.
In Android 4.3, we're introducing restricted profiles, which let you manage per-user access to apps and content. Restricted profiles can be used in any number of situations. For example, restricted profiles enable parental controls, so certain family members are prevented from accessing mature content. Alternately, retail stores can use tablets as kiosks that show product information, or shops can use tablets as point of sale systems, all while limiting access to apps.
To set up restricted profiles on your tablet, go to the Users section under Settings.Learn more.
Bluetooth Smart support (a.k.a. Bluetooth Low-Energy)
Fitness sensors and other devices that use Bluetooth Smart technology open the door for a whole new class of mobile applications. Bluetooth Smart minimizes power usage while measuring and transmitting data, making both sensors and the phones or tablets connected to them more battery-efficient.
With Android 4.3, Nexus 4 can now connect to Bluetooth Smart sensors. Runtastic and many other developers are making Android apps compatible with these sensors.
Accelerated 3D graphics with OpenGL ES 3.0
Devices like the new Nexus 7 support OpenGL ES 3.0, the latest industry standard for accelerated 3D graphics. This brings photorealism to a whole new level in the games you're playing: blades of grass on the soccer field come alive, asphalt on the street looks real as you screech by, stubble on a villains' face almost pokes out of the screen. And with sophisticated effects like self-shadows, that villain looks even more menacing, casting a shadow on himself.
Dial pad autocomplete
With Android 4.3 we’ve introduced a new autocomplete feature in the dial pad. Just start touching numbers or letters and the dial pad will suggest phone numbers or names. To turn on this feature, open your phone app settings and enable “Dial pad autocomplete”.