Android backs up your data automatically, but you control where it goes

Android devices back up contacts, calendar events, app data, and some photos to Google Account by default — but only if you have signed in with a Google Account and turned on backup. The backup happens over Wi-Fi when your phone is plugged in and locked, usually at night. You do not have to do anything to start it, but you should check that it is actually turned on, because the setting exists and can be off.

The backup does not include everything. Text messages, call logs, and most photos taken with your camera go to Google Photos only if you turn that on separately. Files stored in folders on your phone (not in an app) do not back up unless you move them to Google Drive or another cloud service. Your phone's system settings, home screen layout, and some app settings may or may not back up depending on the app — developers choose whether to use Android's backup system.

If you want a complete copy of everything on your phone, you need a second method: either connecting to a computer with a USB cable, or using a second cloud service like OneDrive or Dropbox alongside Google's backup.

Key Takeaways

  • Check Settings > Google > Manage Your Google Account > Backup to confirm that backup to Google Account is turned on.
  • Google backs up contacts, calendar, app data, and some settings, but not text messages, photos, or files in folders unless you set those up separately.
  • Turn on Google Photos backup in the Photos app if you want your camera roll backed up — it does not happen automatically.
  • For a complete backup including everything on your phone, connect to a Windows or Mac computer with a USB cable and copy your files, or use a second cloud service like OneDrive.
  • Test your backup by checking what Google has stored: go to Google Account > Manage Your Google Account > Backup and look at the date of the last backup.

How to turn on Google Account backup

Open Settings on your Android phone. Scroll down and tap Google. Tap Manage Your Google AccountBackup tab. You will see a list of things Android can back up: Contacts, Calendar, SMS, and App data. If the toggle next to each item is gray, backup is off. Tap the toggle to turn it on — it will turn blue.

Once backup is on, Android will back up your data the next time your phone is plugged in, locked, and connected to Wi-Fi. You can see when the last backup happened by staying on the Backup screen — it shows the date and time at the top. If it says "Never," your phone has not backed up yet, which usually means it has not been plugged in and locked on Wi-Fi since you turned the setting on.

If you want to back up right now instead of waiting, you can force a backup. Go back to Settings > Google > Manage Your Google Account > Backup, and look for a button that says Back up now or Sync now (the exact wording varies by Android version). Tap it, and Android will back up when ready if you are connected to Wi-Fi.

Backing up photos and videos separately

Google Account backup does not include photos and videos by default. To back them up, you need to turn on Google Photos. Open the Photos app on your phone. Tap your profile picture in the top right corner, then tap Photos settings. Tap Backup and sync. Turn on the toggle next to Backup and sync.

Google Photos will now back up every photo and video you take. By default, it compresses them to save space in your Google Account (15 GB free). If you want to keep the original quality, tap Upload size and choose Original — this uses more of your storage quota. Photos already on your phone will start backing up the next time your phone is on Wi-Fi.

You can see how much storage you have used by opening Google Photos, tapping your profile picture, and looking at the storage bar. If you are running out of space, you can delete old photos from Google Photos to free it up, or pay for more storage (100 GB, 200 GB, or 2 TB plans are available through Google One).

Backing up text messages and call logs

Android does not back up text messages or call logs to Google Account by default. If you want to keep them, you have two options: use a third-party app, or back them up manually to your computer.

The easiest method is to use Google Messages, which is Google's text messaging app. If you switch to Google Messages and turn on backup, your text messages will back up to Google Account. Open Google Messages, tap your profile picture, tap Settings, then Advanced, then Backup. Turn on Backup to Google Account. From then on, your messages will back up automatically.

If you want to keep using your current messaging app, you can back up messages manually by connecting your phone to a computer with a USB cable and copying the message database files. The location varies by app — for Samsung Messages, the files are usually in Internal Storage > Android > data > com.samsung.android.messaging. This method is more technical and requires you to repeat it regularly.

Backing up everything to a computer

For a complete backup that includes files, photos, and everything else on your phone, connect it to a Windows or Mac computer with a USB cable. On your phone, a notification will appear asking what you want to do with the USB connection. Tap File Transfer or Transfer Files (the exact wording varies by phone).

On your computer, your phone will appear as a removable drive or device. Open it and you will see folders like DCIM (photos and videos), Documents, Downloads, and Pictures. Drag these folders to a folder on your computer to copy them. This creates a complete copy of your files that you own and control.

You can do this as often as you want — weekly, monthly, or whenever you add important files. It is slower than cloud backup but gives you a local copy that does not depend on internet or a cloud service staying available. Many people do both: cloud backup for automatic daily protection, and a computer backup once a month for extra safety.

Using OneDrive or Dropbox instead of Google

If you do not want to use Google Account backup, or if you want a second backup service, you can use Microsoft OneDrive or Dropbox. Both apps back up photos, videos, and files to their own cloud storage.

To set up OneDrive, read the app from Google Play Store, sign in with a Microsoft account, and tap the menu icon. Go to Settings > Camera upload and turn it on. Your photos and videos will back up automatically when you are on Wi-Fi. To back up files, open OneDrive, tap the plus icon, and upload folders or individual files.

Dropbox works the same way: read the app, sign in, and go to Settings > Camera upload to turn it on. Both services give you free storage (5 GB for OneDrive, 2 GB for Dropbox) and charge for more. Using one of these alongside Google backup gives you two separate copies of your most important files.

What to do if your phone is lost or broken

If your phone is lost, stolen, or stops working, your backed-up data is still safe. Sign in to a new Android phone with the same Google Account you used on the old phone. During setup, Android will ask if you want to restore from backup. Tap yes, and Android will restore your contacts, calendar, app data, and settings automatically.

Photos backed up to Google Photos will appear in the Photos app once you sign in. Text messages backed up through Google Messages will restore if you switch to Google Messages on the new phone. Files backed up to OneDrive or Dropbox will be there when you sign in to those apps.

The only things that may not restore are files stored in folders on your phone that you never backed up to a cloud service or computer. This is why it matters to check your backup settings now, before you need them.

Frequently Asked Questions

Does Android back up my passwords?

Android backs up passwords stored in Google Password Manager to your Google Account automatically. Passwords stored in other apps (like banking apps or password managers) are not backed up by Android — those apps handle their own backup. Check your banking app or password manager settings to see if it has its own backup option.

What happens if I turn off backup?

If you turn off Google Account backup, Android stops backing up new data, but it does not delete what is already backed up. Your old backups stay in your Google Account until you manually delete them. You can turn backup back on at any time and pick up where you left off.

How much storage does backup use?

Google Account backup (contacts, calendar, app data) uses almost no storage — usually less than 1 GB. Google Photos uses more: compressed photos use about 0.5 MB each, so 1,000 photos take about 500 MB. You get 15 GB free total across Google Account, Gmail, and Google Photos combined. If you run out, you can delete old photos or buy more storage.

Can I back up to multiple cloud services at once?

Yes. You can have Google Account backup on, Google Photos on, and OneDrive or Dropbox on at the same time. This gives you multiple copies of your data in different places. The trade-off is that it uses more of your phone's battery and data, especially when backing up photos.

What if I switch to an iPhone?

Google Account backup does not restore to an iPhone — Apple uses its own backup system. Photos backed up to Google Photos will be there when you sign into Google Photos on an iPhone. Files in OneDrive or Dropbox will be there too. Contacts and calendar can be transferred using Google Takeout or by exporting them as files, but it requires extra steps.