The new system retains the original jelly Bean name, the overall user experience is not much change, but some new features are worthy of attention.
Google now update
In the new Google Now, it can index your emails about air tickets, meals, hotels, parcels, tickets, etc., and remind you at the right time. But these features require user authorization, and if you're worried, these new features don't make any sense to you. Google now also adds to the display of movies, concerts, stocks and news.
Keyboard gesture Input function
If you've ever used a Swype ime or seen a SwiftKey flow video, I'm sure you'll look forward to the new Android 4.2 feature, where users simply swipe each letter of the word on the keyboard and the input method guesses the word you want. If you see the word you want, just select it. In the actual test, this function is very good, guessing the word time is much earlier than expected.
Miracast Wireless Video Technology
Android's Miracast technology is similar to Apple's airplay, which allows mobile phones to be wirelessly connected to the device's content on a mircast-enabled television. This technology is developed by the Wi-Fi Alliance and is an open standard that can be used by any manufacturer. But so far, there are only a handful of devices that support miracast. Of course, if this technology is widely used, Android users will benefit from it.
Quick Settings
This is another feature that Android trumps its competitor, and when you drop down you can quickly access the notification bar, including Wi-Fi, Bluetooth. Display brightness, battery endurance, flight mode, and a button that allows you to enter the full set. And when you point to the DROP-DOWN notification bar will enter the fast setting, for the regular adjustment of the settings, this is very convenient.
HDR Mode
This is the first time in the Android camera app with HDR mode. HDR photography requires a camera to take two or more photos of the same scene, which are photographed with different exposures, and are then spliced into a single photo, which is the benefit of a more reasonable exposure to the dark and dark parts of the photo.
Photo sphere Panoramic Spherical camera function
Photo Sphere is also a unique feature of Android, a feature that Google Maps and the Android team launched together. Photo Sphere not only allows photos to be photographed in horizontal panoramic mode, but it can also capture the contents of the upper and lower parts, and finally display them in the form of spherical scenes, which will make the photos more vivid to watch. You can also easily share the photos with Google + or even add them to the maps.
Photo Filter
In Android 4.2, Google adds a Instagram-like photo filter to the camera app that allows you to change the tone of the photo, add a sense of granularity, or create a retro sensation. These processes are non-destructive editing, and applications will only generate new images without modifying the original photos.
A brand new camera interface
The camera's interface is simpler than it used to be, and most of its buttons are hidden, allowing you to focus more on filming, and the new interface is easier for users to manipulate. You can preview the function as long as you slide in four oblique directions anywhere in the interface. After taking a picture to delete or view the photo is also very easy, just a gentle sweep.
Multi-user support for tablet
Current Android, each device supports only one account. Multiple users in the Android 4.2 tablet share an Android tablet, but users can access only the apps and data in their accounts.