The two ways to back up your iPhone
You have two real choices for backing up your iPhone: iCloud, which stores your backup in Apple's cloud servers, or your computer, which stores it locally on a Mac or Windows PC. iCloud is simpler if you do not have a computer nearby. A computer backup gives you more control and works even if your internet is slow, but requires a cable and iTunes or Finder.
Both methods back up the same things: your photos, messages, contacts, app data, settings, and passwords. The main difference is where the backup sits and how you access it. You can use both methods at the same time — many people do, so they have a recent backup in two places.
Before you start either backup, plug your iPhone into power and connect to Wi-Fi. Backups take longer on slow internet or when your battery is low, and they will pause if your phone dies.
Key Takeaways
- iCloud backups happen automatically in the background once you turn them on, so you do not have to remember to plug in your phone.
- Computer backups require a cable and take 10 to 30 minutes depending on how much data you have, but they work without internet.
- Your iPhone backs up only the data it stores — photos in the Photos app, messages, contacts, and app settings — not the apps themselves.
- Restoring from a backup erases your current iPhone and replaces everything with what was in the backup, so make sure the backup is recent before you start.
- If iCloud storage is full, your backups will pause until you delete old files or pay for more storage.
How to back up to iCloud
Open Settings on your iPhone, tap your name at the top, then tap iCloud. Scroll down and tap iCloud Backup. Turn on the toggle next to "iCloud Backup" — it will turn blue when it is on. Your iPhone will now back up automatically every night when it is plugged in, locked, and on Wi-Fi.
You can also back up right now without waiting for the automatic schedule. With iCloud Backup still open, tap "Back Up Now" at the bottom of the screen. Your iPhone will show a progress bar. Do not unplug your phone or turn off Wi-Fi until it finishes — this usually takes 5 to 15 minutes depending on how much data you have.
Check how much iCloud storage you are using by going back to Settings, tapping your name, then iCloud. You will see a storage bar at the top. If it says "Storage Full", your backup has stopped. You will need to delete old files (like old photos or emails) or buy more storage. Tap "Manage Account Storage" to see what is taking up space.
How to back up using a computer
Connect your iPhone to your Mac or Windows PC with the USB cable that came with your phone. On a Mac, open Finder and click your iPhone name in the sidebar under Locations. On a Windows PC, open iTunes (or the Music app on Windows 11), and your iPhone will appear in the left sidebar.
Click the General tab. Under "Backups", choose "This Computer" instead of iCloud. Check the box next to "Encrypt iPhone backup" if you want to password-protect your backup — this is optional but recommended because it backs up your passwords and payment information. Click "Back Up Now".
Your computer will show a progress bar. The backup usually takes 10 to 30 minutes depending on how much data you have and how fast your computer is. Do not unplug your iPhone until the progress bar disappears and you see "Latest backup" with a date and time.
How to restore your iPhone from a backup
Restoring erases everything on your iPhone and replaces it with what was in your backup. Make sure your backup is recent before you start. You will need either your Apple ID password (for iCloud) or your computer (for a computer backup).
From iCloud: Go to Settings, tap your name, then iCloud. Scroll to the bottom and tap "Sign Out". When it asks, tap "Keep on iPhone" for everything except iCloud Backup — tap "Delete" for that one. Then sign back in with your Apple ID. During setup, you will see a screen that says "Apps & Data". Tap "Restore from iCloud Backup", choose which backup you want (the most recent one is usually the right choice), and wait while your iPhone downloads and restores everything. This takes 30 minutes to an hour depending on your internet speed.
From a computer: Connect your iPhone with the USB cable. On a Mac, open Finder and click your iPhone in the sidebar. On Windows, open iTunes or the Music app. Click the General tab, then click "Restore iPhone". Your computer will ask you to confirm — click "Restore" again. It will erase your iPhone and restore from the backup you created. This takes 20 to 40 minutes. Do not unplug your phone until you see "iPhone restored successfully".
What gets backed up and what does not
Your backup includes: all your photos and videos in the Photos app, text messages and iMessage conversations, contacts, calendar events, reminders, notes, voice memos, health data, app data and settings, home screen layout, Face ID or Touch ID settings, and your saved Wi-Fi passwords and passwords stored in Keychain.
Your backup does not include: the apps themselves (they download fresh from the App Store when you restore), content you are currently streaming (like music or movies), data stored only in cloud services like Google Drive or Dropbox, your Apple Pay cards (you have to add those again), and content from apps that store data only on their own servers.
If you restore and an app does not show all your data, it usually means that app stores its data in the cloud, not on your phone. Open the app and sign in with your account to get your data back.
Troubleshooting common backup problems
iCloud backup keeps stopping: Check that you have enough iCloud storage. Go to Settings, tap your name, then iCloud, and look at the storage bar. If it is full, delete old photos, emails, or files you do not need. You can also delete old backups — tap "Manage Account Storage", then "Backups", then tap an old backup and tap "Delete Backup".
Computer backup fails or is very slow: Unplug your iPhone, wait 10 seconds, and plug it back in. Try a different USB port on your computer. If you are on Windows, restart iTunes. If the backup is still slow, move your phone to the same room as your Wi-Fi router — your computer needs to stay connected during the backup.
Restore gets stuck: If the restore is taking longer than two hours, force restart your iPhone by quickly pressing and releasing Volume Up, quickly pressing and releasing Volume Down, then pressing and holding the Side button until you see the Apple logo. Plug it back in and try the restore again.
You restored but some data is missing: The backup you restored from may not have included that data. Check the date of the backup — if it is from before you lost the data, that explains it. You may be able to recover some photos or messages using recovery software, but that is beyond what a standard backup can do.
Frequently Asked Questions
Can I back up my iPhone without Wi-Fi?
iCloud backups require Wi-Fi. Computer backups do not — they work over the USB cable alone. If your internet is unreliable, use a computer backup instead.
How often should I back up my iPhone?
If you use iCloud Backup, it happens automatically every night, so you do not have to think about it. If you use a computer, back up at least once a week, or more often if you take a lot of photos or have important messages you do not want to lose.
What if I want to keep my old iPhone and also restore to a new one?
Restoring to a new iPhone does not erase your old one — the backup is a copy. You can restore the same backup to as many phones as you want. Just make sure both phones are signed in with the same Apple ID.
Can I restore only some of my data instead of everything?
No. Restoring from a backup is all-or-nothing — it erases your current iPhone and replaces everything with what was in the backup. If you want to move only certain photos or contacts, you have to do that manually through iCloud.com or by using a computer.
What happens to my backup if I do not use my iPhone for a month?
iCloud backups stay in your account until you delete them or until your iCloud storage fills up. Computer backups stay on your computer until you delete them. Neither one expires on its own.