How to Back Up Your Phone: iPhone and Android

A phone backup makes it easier to restore supported information if your phone is lost, damaged, replaced, or reset. It can include settings, contacts, messages, photos, and app data, but exactly what is saved depends on your phone, apps, backup settings, and available storage. A backup is not always a complete copy of every file, so check that irreplaceable photos and documents are safely stored too.

What You’ll Need

Your iPhone or Android phone, unlocked and connected to the internet.
Access to the Apple Account or Google Account used on the phone, including its password and any required verification method.
A reliable Wi-Fi connection. Backups can use substantial data, and mobile-data backup availability varies.
A charger or enough battery to finish the process.
Enough available cloud storage. If you prefer not to use cloud backup, you may be able to make a local computer backup; the steps and contents differ by device.

Step-by-Step

Check what needs saving. Make a quick list of important items, such as photos, contacts, messages, and files. Confirm that you can sign in to the account on the phone. If you use an authenticator app, banking app, or messaging service, check its own transfer or backup instructions; some app data is not included in a standard device backup.
Connect to Wi-Fi and power. Use a trusted Wi-Fi network and plug the phone into a charger. Keep the phone nearby, unlocked if prompted, and connected until the backup finishes. A large first backup can take longer than later backups.
Back up an iPhone with iCloud. Open Settings, tap your name, then tap iCloud and iCloud Backup. Menu names can differ slightly by iOS version. Turn on Back Up This iPhone if it is off, then tap Back Up Now. Leave the phone on Wi-Fi while it uploads. The screen should show a recent successful backup or the time of the last backup.
Check iPhone backup details. In iCloud settings, review the device backup and its size. Check that the apps or categories you care about are included where those controls are available. iCloud Photos and some other services sync separately; syncing is useful, but it is not necessarily a separate, recoverable archive of every item.
Back up an Android phone with Google. Open Settings and look for Google, then Backup. Depending on the phone and Android version, the path or wording may differ slightly; search Settings for “Backup” if needed. Review the account and included data, then choose Back up now if that option appears. Keep the phone connected to Wi-Fi and power until it reports completion or shows a recent backup time.
Check Android photos and files separately. Device backup and photo backup are not always the same thing. Open Google Photos and check its backup status if you use it for pictures and videos. Confirm that important downloads or documents are in a backed-up location or copy them to a computer or another secure storage option.
Verify the result. Return to the backup screen and check the last successful backup time and any error message. Open your photo or file service from another device or its website, if available, to confirm that important items appear. Do not erase or trade in the old phone until you have confirmed what you need is accessible.
Set a routine. Turn on automatic backups if offered, and periodically check that they are still completing. Automatic backups may require specific conditions, such as Wi-Fi, charging, or a locked screen. A backup that has not run recently may not contain your newest information.

Common Mistakes

Assuming sync equals backup: Sync keeps information aligned across devices. Deleting a synced item may remove it elsewhere too, so it is not always a substitute for an independent copy.
Thinking one backup includes everything: App data, downloads, secure folders, and account-specific content may be excluded or require separate steps. Check important apps before changing phones.
Ignoring storage limits: A full cloud account can stop a backup or prevent photos from uploading. Review storage and remove only items you no longer need, or choose an appropriate storage option.
Stopping before completion: Starting a backup is not proof it finished. Look for a success message or a recent completion time.
Forgetting account access: A backup may be difficult to restore without the correct account credentials and verification method. Make sure you can access them before resetting or replacing a phone.

Tips

Use a strong screen lock and keep your Apple or Google account protected; a backup can contain sensitive personal information.
For especially important photos and documents, keep another copy in a separate location, such as a computer or an independent storage service. This helps if one account or device becomes unavailable.
Before a factory reset, read the phone maker’s current instructions and confirm that the backup is recent. A reset erases local data.
When moving to a new phone, use its official setup or transfer process. Some information may transfer directly between phones, while a cloud backup can restore other supported data.
Review backup status occasionally, especially after changing accounts, phones, or storage settings.

Troubleshooting

Backup will not start: Check the Wi-Fi connection, plug in the phone, and make sure it has enough battery. Restart the phone and try again. On a work-managed device, an administrator may restrict backup settings.

Cloud storage is full: Review what is using storage and whether old device backups or large files can be removed safely. Do not delete data until you know it exists elsewhere. You can also use a computer backup or an available storage plan.

Backup is stuck or very slow: Keep the phone on a stable Wi-Fi connection and power. Large photo libraries may take time, particularly on the first upload. If the status does not change, restart the phone, check the service’s account and storage status, and retry.

You cannot sign in or restore: Confirm that you are using the same Apple Account or Google Account that made the backup. Follow the account provider’s official recovery steps if verification fails; do not share verification codes with anyone.

Some items are missing: Check whether they use a separate app or sync service, and sign in to that service. Look for the item on the service’s website or another device before concluding it is gone. If it was never included in a backup or synced copy, recovery may not be possible.

Frequently Asked Questions

How often should I back up my phone?

Turn on automatic backups when available and check periodically that they have completed recently. Make a manual backup before a reset, repair, or phone transfer.

Can I back up my phone without Wi-Fi?

Some phones or services allow backup over mobile data, but availability and data use vary. Wi-Fi is the practical default, especially for a large first backup.

Does a phone backup save photos?

It may, depending on your settings and service. Check the photo app’s backup status separately, and verify that important images are visible in the backed-up location.

Can I back up my phone to a computer?

Often, yes. Apple and Android devices have different computer-backup or file-transfer options, and the amount of data saved varies. Follow the device maker’s instructions for your model and software version.

Will a backup restore every app and password?

No. Some apps store information online or require you to sign in again, and certain secure data may not transfer. Check critical apps’ official transfer instructions before resetting the old phone.

How do I know the backup worked?

Look for a successful status or recent completion time in the phone’s backup settings. For important files and photos, also confirm they can be seen from the relevant account or another device.

Further reading: Apple Support and Google Help. Details can change, so check the official page for anything that matters to you. Spotted a mistake? Tell us. How we write an answer.