Google has added a new feature to Android, it now comes with an uninstall manager which tells your which applications you should remove from your device.
The feature is available when you are downloading an app from the Google Play Store and you do not have enough space to install the app on your device.
Google will now suggest applications that you can uninstall from your device, the apps that Google’s suggests are ones that you are not using regularly, this can be seen in the screenshot below.
Google also suggests that your delete large files on your device, this includes photos and other larger files like videos and more.
Source Android Police