A Microsoft file hosting and synchronization service.
Hello Brian V,
Your concern is valid because OneDrive Camera Backup works differently from Samsung Gallery sync.
Switching from Samsung Gallery sync to OneDrive Camera Backup may upload all eligible photos currently stored on the device, not only newly taken photos. Therefore, if those photos are already in OneDrive, you should allow for the possibility of duplicate uploads. Microsoft does not document an option to restrict the initial scan to new photos only.
Camera Backup is a one-way backup. Enabling it does not delete the original photos or folders from your phone. After a photo is backed up, deleting the local copy from the phone does not delete the OneDrive copy. This differs from Samsung Gallery sync, where deletions can be reflected in both locations.
Backed-up camera photos normally appear in Pictures\Camera Roll. Additional Samsung Gallery folders can be selected under OneDrive > account image > Settings > Camera backup > Back up device folders. Enable Categorize if you want OneDrive to retain the original folder organization; otherwise, the selected images are placed in Camera Roll.
Before enabling Camera Backup, I recommend confirming that your existing photos are accessible at OneDrive.com, checking that sufficient OneDrive storage is available, and keeping a separate backup of important photos. Avoid deleting anything until you have verified the results.
Starting September 30, 2026, Samsung Gallery will no longer sync directly with OneDrive, so OneDrive Camera Backup is Microsoft’s supported method for continuing automatic photo backup.
I hope this clarifies what to expect before you enable Camera Backup.
Feel free reply back to this post if you need further assistance.