Android 5.0 Lollipop
Anyone is free to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software.
You can add widgets to the home screen. This allows you to have more flexibility and to see information at a glance, without going into the app.
The web browser has automatic word wrap when zooming, the user can easily read long lines without scrolling horizontally.
With a search browser app, you can surf the internet from your device.
Android 9.0 Pie
It can be updated over the air (OTA) w/o connecting to a computer
All your contacts and calendar dates are synced over-the-air.
With a large enough data plan, you could cancel your home internet and use the device as a hotspot.
You can easily manage notifications by adjusting your preferences, and you can also turn them off completely for specific apps.
The OS has a feature for tracking the position of a mobile device. This feature is particularly useful if your phone gets stolen or if you lose it.
The device will signal upcoming turns and prepare you, ensuring you stay on route.
OpenGL is used in games, with newer versions supporting better graphics.
Android 9.0 Pie
The ultra power-saving mode, also called low power mode, is an effective way to extend the battery life of the device. Usually, it involves limiting screen brightness and contrast, disabling location services, restricting connectivity, and turning off nonessential apps. Show more
Offline voice recognition enables you to perform voice actions, like dictating texts or using various voice commands, without an internet connection.
If an app has sharing capabilities and the developers have indicated it, the app will automatically appear in your list of sharing options. Some OS’s limit direct sharing options to a select few apps, which means you have to open apps separately in order to upload the files you want to share.