Google has made it much easier for folks to find photos that are saved on the device, which was always a nightmare for those who were switching to a smartphone that no longer came with a proper "Gallery" app, but instead relied on Google's Photos app. In Google Photos 2.8, the Device folders' option makes itself more visible by moving from the burger menu to the Albums' tab and gets a slightly different name: Photos on device'. In addition to being able to see photo albums from your Google Photos account, you'll be able to scroll to the left to see photos saved internally. The actual...
Source: http://www.gsmarena.com/google_photos_28_revamps_ui_changes_device_folders_location-news-23165.php