Once you've upgraded your phone, you'll see the following improvements to the Android operating system and other apps on your phone.
Android Doze has been refined to improve battery life.
Adaptive Battery is a new feature that learns how you use apps and restricts battery use for apps you don’t use often.
You can set Battery Saver to automatically switch on sooner, with much more battery remaining.
Android P restricts the use of microphone, camera, and all sensors by apps running in the background. Whenever an app uses a sensor, you'll see a message.
Backups are now encrypted on the device before uploading to the cloud.
An app’s private data can now be accessed only by that app.
Your Wi-Fi hotpot now turns off automatically when no devices are connected.
Add a Lockdown option to your Power button so you can temporarily tighten locks and prevent lock screen notifications.
At A Glance: At the top of the home screen, you’ll see date and temperature information. When available, you’ll also see upcoming calendar events, flight information, and traffic information. To turn these options on or off, touch & hold the information, then touch Preferences.
Accessibililty menu: Add
at the bottom of the home screen to open a menu of options that control your phone.
Navigation: Remove the
icons and swipe or drag the
navigation bar instead.

Screen rotation: When you have your screen locked in portrait and you turn the phone to landscape,
appears in your navigation bar. Touch it to rotate the current app.
Overview: When you touch
to use your list of recent apps:
Smarter search results: Instead of just including icons of installed apps that match your search, your search results now include things you can do inside of apps too.
Smarter app list: Suggested app tasks now appear in your app list, based on your previous actions. For example, when you plug in headphones, your most recently played music appears.
If you want to turn these off, touch & hold a blank area your home screen, then touch Home settings > App suggestions.
Quick settings:
Settings:
You can now do the following from a notification, without opening another app or settings:
You can now use the Power button to:
Volume buttons now default to control media sound.
To quickly switch to vibrate, press & hold the Power + Volume Up buttons.
To switch call and notification sounds to on
, off
, or vibrate
, press a Volume button, then touch the icon above the volume slider.
Apps launch faster and use less memory due to Android Runtime enhancements.