How to Back Up WhatsApp Chats on iPhone and Android in the UK

Your WhatsApp chats hold years of conversations, photos, voice notes and family group messages, and most of them exist only on your phone. If the phone is lost, stolen or broken, those chats are gone unless you have a backup. WhatsApp does not keep a copy of your messages on its servers once they are delivered, so the backup is your responsibility.

Step 1: Back up on iPhone with iCloud

On iPhone, WhatsApp backs up to iCloud. Open WhatsApp, go to Settings, then Chats, then Chat Backup. Tap Back Up Now to make a backup straight away. You will see the date and size of your last backup at the top of the screen.

Turn on Auto Backup so it happens without you thinking about it. Daily is the safest choice if your chats change a lot, while weekly is enough for most people. The backup runs when your phone is on Wi-Fi and charging, in most recent versions. Decide whether to include videos: videos make the backup much larger, so if your iCloud storage is nearly full, switch Include Videos off and back up the text and photos only.

Check that you have enough iCloud space before the first backup. Apple gives every account 5 GB free, and a WhatsApp backup with years of photos can be larger than that. If the backup fails, check your space in Settings under your name, then iCloud. Also check that iCloud Drive is switched on for WhatsApp, or the backup will not run at all.

Step 2: Back up on Android with Google Drive

On Android, WhatsApp backs up to Google Drive. Open WhatsApp, tap the three dots, then Settings, then Chats, then Chat backup. Tap Back up to Google Drive and choose how often it should run: daily, weekly or monthly. Daily is the safest choice, and the backup runs over Wi-Fi by default, which protects your mobile data.

Choose the Google account the backup should go to, and make sure it is the same account you will use on your next phone. Tap Back Up to make one straight away. As on iPhone, you can choose whether to include videos. Videos take up a lot of space in Google Drive, so many people leave them out and keep the backup to messages and photos.

Check the Google account has enough storage. Google gives 15 GB free across Gmail, Drive and Photos, and a large WhatsApp backup can eat a good share of that. If the backup fails, check your storage in the Google One app and delete old files or upgrade your plan if you need to.

Step 3: Turn on end-to-end encrypted backup

A normal WhatsApp backup is protected by the security of your iCloud or Google account, which means anyone who gets into that account could read it. End-to-end encrypted backup adds a second layer: the backup is locked with a password you choose, or with a 64-digit encryption key that WhatsApp generates for you.

To turn it on, go to Settings, then Chats, then Chat Backup, then End-to-end Encrypted Backup, and tap Turn On. Choose a password you will remember, or let WhatsApp create a 64-digit key. If you choose the key, save it somewhere safe, such as a password manager, because WhatsApp cannot recover it for you. If you forget the password or lose the key, the backup cannot be restored, so do not skip this step.

This is worth doing if your chats contain anything sensitive, such as bank details or work conversations. It takes a minute to set up, and it makes the backup genuinely private.

Step 4: Restore chats on a new phone

Restoring is simple, but the order matters. Install WhatsApp on your new phone and verify the same phone number you used before. WhatsApp will ask whether you want to restore your chats from the backup. On iPhone, tap Restore Chat History. On Android, tap Restore. Wait for the restore to finish before you start using the app, and keep the phone on Wi-Fi while it downloads.

A restore only works if three things match: the same phone number, the same iCloud or Google account, and a backup that actually exists. If you have changed your number, change it inside WhatsApp on your old phone first, under Settings, then Account, then Change Number, and make a fresh backup before you move. Switching from iPhone to Android, or the other way, needs the Move Chats option during setup instead of the standard backup.

Fixing common backup problems

If the backup keeps failing, the cause is usually storage. Check the space in your iCloud or Google account, and check the free space on your phone too. A backup needs room on the phone while it is being made. Delete old videos and large files you no longer need, or move them to a cloud service first.

If the backup is stuck, switch between Wi-Fi and mobile data, then try again. A weak Wi-Fi signal can stall a large backup for hours. Restarting the phone also clears the occasional stuck process, and updating WhatsApp in the App Store or Play Store helps, since backup fixes arrive in updates regularly.

If the restore option never appears on a new phone, check that you signed in with the same Apple ID or Google account that made the backup. A backup made under a different account is invisible to the new phone. Also check that the backup is recent: if the last backup is months old, the chats since then are not in it, and they cannot be recovered.

Frequently Asked Questions

How often should I back up WhatsApp chats?

Daily automatic backup is the safest choice, since you lose at most a day of messages if your phone is lost or broken. Weekly is enough if your chats rarely change, but a backup that is months old will not contain your recent conversations.

Can I restore WhatsApp chats if I change my phone number?

Yes, but change the number inside WhatsApp on your old phone first, under Settings, then Account, then Change Number, and make a fresh backup before you move. The restore also needs the same iCloud or Google account that made the backup.

What happens if I forget my encrypted backup password?

The backup cannot be restored without it. WhatsApp cannot recover a forgotten encrypted backup password or a lost 64-digit key, so save it in a password manager when you set it up. Without the password or the key, the encrypted backup is useless.