There is nothing worse than losing our contacts and photos, and only then do we understand the importance of backup.
Backing up contacts is easy and can be done in many ways. The first way is to export all contacts to the SD card. Another way is to sync all the contacts of your phone with a Google account.

In the Google Photos application, you get 15GB of free space, in which you can save your phone’s photo. You can upload, share, and edit files with Google Drive. You can save all photos and videos from your device to Google Photo Library. It can also include photos taken from your device’s camera.