Android Oreo has arrived. Safer, smarter, more powerful & sweeter than ever. "ANDROID 8.0 OREO Review" 
**Android Oreo features
Some Android O features hide under the hood, others show up immediately on the surface. Since the former will affect all devices, we will begin with them. The latter are immediately visible with the Nexus and Pixel devices, but are often not used by manufacturers in their own UIs and are therefore less important, so we will detail them last.
1. Power saving thanks to Android O
To protect users' battery life and performance, Google has put automatic limits on app background activities in Android O. These background limits will specifically include implicit broadcasts, background services and location updates. For users, this means less energy consumption, and ultimately, longer battery life.
Android O makes it easier to find the apps that consume the most battery power. Usually Facebook or WhatsApp end up in the list. But only with Android O can you see if the apps have been draining your battery with background activities, or whether they are only using battery life when you're in the app.
2.Earlier updates thanks to Project Treble
With Project Treble, Android O will get a vendor interface. This means that Android will be more modular so that manufacturers can use the vendor interface to access the implementations from internal component vendors, such as Qualcomm and MediaTek, for example. This will allow Android updates to happen more easily, because the whole process can be done independently of these vendor implementations. The idea is to speed up updates from manufacturers by making the process more streamlined.
3. Android O hardware support :
   1.HDR displays are officially supported
    HDR is an interesting feature, but there was little support on the 
    system side. Now, apps can define how to save and display 
    image resources with a wide range of colors. Google says this is 
    especially relevant for image processing apps.
   2. Better Bluetooth support
   Android O supports high-quality Bluetooth audio and codecs such 
   as LDAC. Sony is helping Google in the development of LDAC 
   audio wireless technology. According to the company, LDAC can 
   transfer a larger volume of data through Bluetooth, with a bit rate 
   of more than 990 kbps. In other words, this means better audio 
   quality for devices running with Android O. There is also AAudio, a 
   new Android native API designed for applications that require 
   high-performance, low-latency audio quality. Applications that 
   use AAudio can read and save data via stream.
**Android O surface features :
1. Text selection gets smarter
Copy/pasting on mobile is about to get easier, and smarter. Using machine learning, Android will recognize when you're trying to copy/paste an address, URL or phone number and select the whole thing for you automatically, instead of just one word.
2. New round emoji
With this update from Developer Preview 1 to 2, the emoji changed. RIP blob emoji. The newer ones are closer to the standard circular ones used on most other platforms like iOS and WhatsApp
3. Adaptive icons
App icons will adapt automatically to the manufacturer's UI. The appearance of app icons differs across the wide range of devices running Android. Thus, an app icon may appear to be circular in the launcher of one device and square in another. That, of course, depends on the manufacturer's skin, but it's cool to see that Google will now offer a standard for adapting application icons to the UI (if the developer does).
4. Search and find app info
Since Android Lollipop the Settings menu has had a search function. With the update to Android O, the search gets a new feature. App info now appears in the search results for installed apps. So, you can quickly access an app's App info menu to quit the app, delete its cache or manage its permissions.
5. Picture-in-picture 
With the new picture-in-picture mode, multitasking is even easier. You can have an app open or play a video in a small window, much like what you can do in the YouTube app already, instead of showing it side-by-side with another app in the usual multi-window mode. This way is more flexible, and several apps will support it soon, including YouTube, Netflix, Maps, Duo and more.
                         
                    
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