The simplest backup is automatic cloud backup, and most phones offer it for free
Your phone stores photos, messages, contacts, and app data that you cannot easily recreate. A backup is a copy of that information stored somewhere else — so if your phone breaks, gets lost, or stops working, you can restore everything to a new device.
The easiest route is to turn on automatic cloud backup through the account you already use. For iPhones, this means iCloud. For Android phones, this means Google Account. Both work in the background without you doing anything after setup, and both offer free storage for basic backups — though photo and video storage counts against your limit.
You can also back up to a computer using a cable, which gives you more control over what gets backed up and uses no cloud storage. This takes more steps but works well if you have a computer you use regularly.
Key Takeaways
- iCloud (iPhone) and Google Account (Android) both back up automatically once you turn them on, and both are free for basic backups of contacts, messages, and app data.
- Photos and videos count toward your cloud storage limit, so you may need to pay for extra storage if you have thousands of photos.
- A computer backup using a cable gives you a complete copy stored locally and does not use cloud storage, but requires you to plug in your phone regularly.
- The best protection uses both methods — automatic cloud backup for everyday protection, plus a computer backup once a month for a complete offline copy.
How to set up automatic backup on iPhone
Open Settings, 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 show blue when it is on. Your phone will back up automatically when it is plugged in, locked, and connected to Wi-Fi.
Check what is being backed up by going back to the iCloud screen and tapping "Manage Account Storage" or "Manage Storage". You will see a list of apps and how much space each one uses. Photos and videos are backed up separately under "Photos" — if you have many photos, this is where your storage fills up first.
iCloud gives you 5 GB of free storage. If you need more, you can pay for a plan through Settings > [Your Name] > iCloud > Manage Account Storage > Change Storage Plan. Plans start at $0.99 per month for 50 GB.
How to set up automatic backup on Android
Open Settings and search for "backup" — the exact path varies by phone maker, but the search will find it. Tap "Backup and restore" or "Google Account" depending on what appears. Make sure the toggle next to "Back up to Google Account" is on — it will show blue or green when it is on.
Your phone will back up automatically when it is plugged in and connected to Wi-Fi. To see what is being backed up, open Settings, search for "Google Account", tap it, then tap "Manage your Google Account" and look for the "Backup" tab. You will see which apps, contacts, messages, and settings are included.
Google gives you 15 GB of free storage shared across Gmail, Google Drive, and phone backups. Photos backed up at "Storage saver" quality do not count toward this limit, but full-resolution photos do. You can change this in Google Photos settings under "Backup and sync".
How to back up your phone to a computer
For iPhone, plug your phone into a Mac or Windows computer using the charging cable. Open Finder (Mac) or File Explorer (Windows). Your phone should appear in the sidebar. Click it, then click "General" at the top. Check the box next to "Back up all of the data on your iPhone to this computer" and click "Back Up Now".
For Android, plug your phone into a computer using the charging cable. On your phone, swipe down from the top and tap the notification that says "Charging via USB" or "USB charging this device". Tap "File Transfer" or "MTP" — this lets your computer see your phone's files. On your computer, open File Explorer (Windows) or Finder (Mac), find your phone in the sidebar, and copy the folders you want to keep — usually DCIM (photos), Documents, and Downloads.
Computer backups take 10 to 30 minutes depending on how much data you have. Do this once a month, or whenever you have taken a lot of new photos or made important changes to contacts and messages.
What happens if you restore from a backup
When you set up a new phone or reset an old one, you will be asked if you want to restore from a backup. Choose yes, sign in with the same account (Apple ID for iPhone, Google Account for Android), and select the backup you want to restore from. The phone will download your contacts, messages, photos, app data, and settings — everything except the apps themselves, which download fresh from the app store.
Restoration usually takes 30 minutes to an hour depending on how much data you have and your internet speed. During this time, keep your phone plugged in and connected to Wi-Fi. Do not unplug it or turn it off.
If you have both a cloud backup and a computer backup, the cloud backup will restore faster because it is already on the internet. The computer backup is useful if your cloud account is compromised or if you want a backup that is not stored online.
What does not get backed up automatically
Automatic backups include contacts, messages, photos, videos, app data, settings, and call history. They do not include the apps themselves — those download fresh from the app store when you restore. They also do not include text message attachments on some phones, or files stored only in app-specific folders that the app does not back up.
If you use banking apps, password managers, or other sensitive apps, check their settings to see if they have their own backup option. Some apps like 1Password or Bitwarden let you back up your data separately so you are not relying only on your phone's backup.
Files stored in cloud services like Google Drive, Dropbox, or OneDrive are already backed up by those services and do not need to be included in your phone backup — they sync automatically when you sign in.
How often to back up and what to do if something goes wrong
Automatic cloud backups happen whenever your phone is plugged in and on Wi-Fi, so you do not need to do anything. If you use a computer backup, do it once a month or after you have taken a lot of new photos or made important changes.
If your phone breaks or stops working, you have a few options. If it still turns on, you can back it up one more time before trying to fix it. If it does not turn on, you can restore to a new phone using your last backup — you will lose anything that happened after the backup was made, but everything before that point will be there.
If you think your phone was hacked or your account was compromised, change your Apple ID or Google Account password immediately, then back up again. This ensures your backup does not contain any malicious changes. If you are not sure, restore from an older backup before the compromise happened.
Frequently Asked Questions
Will backing up my phone use a lot of data?
Automatic backups only happen when you are on Wi-Fi, so they do not use your phone plan's data. The first backup can take a while because it is large, but after that, only new or changed data gets backed up, which is much smaller. Computer backups use no data at all.
Can I back up to multiple places at once?
Yes. You can use iCloud or Google Account for automatic backup and also plug into a computer once a month for a local backup. This gives you two separate copies — one online and one offline — so you have protection if one fails.
What if I do not have a computer?
Cloud backup alone is enough. Turn on iCloud (iPhone) or Google Account (Android) backup and you are protected. You do not need a computer backup unless you want an extra copy stored locally.
Do I need to pay for cloud backup?
No. Both iCloud and Google Account offer free backup, though free storage is limited — 5 GB for iCloud, 15 GB for Google Account. If you have many photos or videos, you may need to pay for extra storage, but basic backups of contacts, messages, and app data fit in the free tier.
What if I forgot my Apple ID or Google Account password?
You will need to recover your account before you can restore a backup. Go to iforgot.apple.com (iPhone) or accounts.google.com/signin/recovery (Android) and follow the steps to regain access. This usually takes a few minutes if you have access to your recovery email or phone number.