How to Back Up Phone Data on iPhone and Android

A phone backup makes a separate copy of some or all of your information so you can restore it after a phone is lost, damaged, reset, or replaced. The exact items included depend on the phone, settings, apps, and backup method. Photos, messages, contacts, app data, and device settings may be handled separately, so do not assume one backup captures everything.

Before starting, connect to a trusted Wi-Fi network if using cloud backup, charge the phone, and make sure you can sign in to the associated Apple or Google account. Menu names can differ slightly by operating-system version. Keep your account password and any two-factor authentication method available; a backup is much less useful if you cannot access the account needed to restore it.

What You’ll Need

Your phone, unlocked and charged or connected to power.
A stable Wi-Fi connection for cloud backup, or a compatible computer and cable for a local backup.
Access to the Apple Account or Google Account used on the phone, including its sign-in verification method.
Enough available cloud or computer storage for the data you intend to copy. Check storage before starting; a full destination can stop a backup.
If you use a separate photo, messaging, or password app, its account details and backup or sync settings.

Step-by-Step

Decide what must be saved. List the information you would need on a replacement phone: contacts, photos and videos, texts, files, app data, and settings. Check whether important information is already syncing to a separate service. Syncing keeps selected items updated across devices, while a backup is a saved copy; neither automatically covers every app or file.
Prepare the phone and account. Connect to Wi-Fi, plug in the phone if its battery is low, and confirm you know the account password. Review available destination storage. If you are backing up to a computer, use a trusted computer and a cable that supports data transfer, not just charging.
Start an iPhone cloud backup. Open Settings, tap your name, then iCloud, and look for iCloud Backup. Turn on backup if needed and tap the option to back up now. The wording or path may differ slightly by iOS version. Stay connected to Wi-Fi and power while it runs. Check the displayed last successful backup time afterward.
Review iPhone data stored in iCloud. In Settings, tap your name and iCloud to review which apps and data use iCloud. Photos, contacts, notes, and other items may sync separately rather than being duplicated in the device backup. Confirm that the categories you care about are enabled and have finished syncing. Some app data may require the app’s own backup process.
Start an Android cloud backup. Open Settings and look for Google, Backup, or a similar option; the path and labels vary by phone maker and Android version. Choose the Google account and review the categories shown, then select the option to back up now. Keep the phone online and powered. Return to the backup screen to check its status and last backup time.
Check Android photos and files separately. If you use Google Photos or another photo service, open its backup settings and confirm that photo and video backup is enabled and complete. Check folders beyond the camera folder if you need screenshots, downloads, or messaging-app media. Use the relevant app’s own instructions for its data; Android’s device backup does not necessarily include every app’s files or login session.
Make a computer copy if useful. Connect the phone to a trusted computer and follow the operating system’s current instructions for creating a device backup or importing photos and files. On iPhone, Finder on a Mac or the Apple Devices app on Windows may provide device-backup options; on Android, available transfer and backup tools vary by manufacturer. If offered, an encrypted computer backup can preserve additional sensitive categories, but protect it with a password you can remember.
Verify the result. Confirm the backup reports completion, check its date and destination, and inspect a few important items from another device or the backup app where possible. For photos, verify that recent images appear in the chosen service. Do not erase, trade in, or reset the old phone until you have confirmed the new phone can access what matters.
Keep backups current. Leave automatic backup enabled if it suits your needs, and revisit it after changing accounts, services, or storage settings. Repeat a manual backup before a major reset or phone replacement. A backup only helps if it is recent, accessible, and includes the information you intend to restore.

Common Mistakes

Assuming everything is included: App data, downloaded files, authenticator access, and media in particular folders may need separate attention. Check the backup’s category list and each important app’s settings.
Confusing sync with a backup: Synced deletions can sometimes carry across devices. For especially important photos or documents, keep another copy in a separate location rather than relying on one sync service.
Using the wrong account: A backup may be tied to a different Apple or Google account than the one you use on the replacement phone. Verify the account before starting.
Stopping before completion: A backup that is pending, paused, or interrupted is not a finished copy. Check its status and last successful date, not just whether backup is switched on.
Forgetting recovery access: A password-protected backup or account can be inaccessible without its password or verification method. Store recovery information securely and do not share it.

Tips

Use both a cloud backup and a computer or other separate copy for irreplaceable files when practical.
Back up over a trusted network and avoid entering account passwords on shared or public computers.
Keep the old phone until you have signed in on the replacement, restored data, and checked key apps and files.
For work-managed phones, follow your organization’s backup rules; some data may be controlled by an administrator.
Remember that a backup is not the same as a full transfer. Some apps require you to sign in again or set up their data separately.

Troubleshooting

Backup will not start or keeps pausing: Check the Wi-Fi connection, connect the phone to power, and make sure there is enough destination storage. Restart the phone and try again. If cloud backup is restricted by a work or family setting, check with the account administrator.

The phone says storage is full: Review what is using cloud or computer space. Remove only files you have another copy of, or choose a different backup destination. Do not delete the old phone’s data simply to make a backup fit.

Some photos or messages are missing: Confirm the right account is active and that the relevant sync or app-backup setting is on. Check other device folders and the app’s own restore options. Allow uploads to finish before judging whether the copy is complete.

You cannot restore the backup: Confirm that the replacement phone is signed in to the same account and is compatible with the backup. Follow the phone maker’s restore instructions; some restores are offered only during initial setup. If the backup is encrypted, use its original password. Contact Apple Support, Google Help, or the phone maker if the backup appears damaged or unavailable.

Frequently Asked Questions

How often should I back up my phone?

Automatic backups are useful for keeping a recent copy, but check that they complete regularly. Make a fresh manual backup before resetting, repairing, or replacing the phone.

Does backing up save my photos?

It can, but photos may use a separate sync or backup service and may not be included in the device backup. Check the photo app’s account, folders, backup status, and last completed upload.

Can I back up a phone without Wi-Fi?

A computer backup or direct file copy may work without Wi-Fi, depending on the phone and software. Cloud backup generally needs an internet connection, and cellular data availability depends on the service and settings.

Will a backup move everything to a new phone?

It restores supported data and settings, but some apps, files, or sign-in details may not transfer. Check important apps individually and keep the old phone until you verify the new one.

Is a phone backup secure?

Use a strong account password, enable available account security protections, and back up only to a destination you trust. Protect encrypted computer backups with a secure password, because losing it may prevent restoration.

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.