WhatsApp Web and other linked devices are convenient, but they are not backups: chat backup and restore happen on your phone. To protect your history, use the right Google Account or Apple Account when backing up and restoring, and decide whether to turn on WhatsApp’s optional end-to-end encrypted backup. Check linked-device sessions and remember that View Once media can still be recorded by recipients.
How to use WhatsApp Web and linked devices
WhatsApp lets you link up to four devices to a primary phone at a time, according to its linked-device guidance. Once linked, a device can work while the phone is offline. The phone is still required to register the account and link a new device.
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Link a browser session
- On your computer, open the official WhatsApp Web site: web.whatsapp.com.
- On your phone, open WhatsApp and go to Linked devices. On Android, find it from the menu; on iPhone, open it in WhatsApp Settings. Labels and placement may change between app versions.
- Choose the option to link a device, then scan the QR code shown in the browser.
If you do not want the browser session to remain signed in, uncheck Stay logged in before scanning. WhatsApp says the session will then log out when the browser or tab is closed. Use only official WhatsApp clients and sites: the company warns that unofficial clients can put an account at risk or lead to a ban.
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On your phone, open WhatsApp’s Linked devices screen and review the listed sessions. Select any session you do not recognize and log it out. WhatsApp says it cannot provide information about who accessed an account or when and where it was accessed, so the device list is the practical place to check and end unfamiliar sessions.
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WhatsApp’s current Help Center guidance, checked October 5, 2026, says linked devices can be logged out if the primary phone is unused for over 14 days, and linked devices are automatically disconnected after 30 days of inactivity. Check the list periodically rather than assuming a session will remain connected or disappear at a particular time.
What appears on a linked device—and what does not
When you link a device, WhatsApp copies recent history to it in encrypted form, where it is stored locally. This is a sync convenience, not a complete copy of the account. Not all chats and messages are transferred; WhatsApp says Desktop syncs more history than Web, and its help page notes a known issue in which some linked devices may not show up to one year of history. Initial syncing may take a few minutes. For older or missing messages, check the phone, which remains the place to look for full chat history.
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Back up and restore WhatsApp chats on your phone
WhatsApp Web, Mac, and Windows linked devices cannot back up or restore chat history. WhatsApp states: “It’s not possible to backup or restore your chat history on linked devices such as WhatsApp on Web, WhatsApp on Mac, or WhatsApp on Windows.” Manage the backup and restoration on a phone using the corresponding cloud account.
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Android: Google Account backup
WhatsApp’s Android backup is associated with both the phone number and the Google Account used for the backup. To restore, use that same number and Google Account. In WhatsApp, open Settings > Chats > Chat backup to review backup options and start or schedule a backup; app labels can change.
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- Backup size varies, and mobile data may be used. WhatsApp recommends Wi-Fi to avoid data charges.
- WhatsApp’s current Help Center guidance, checked October 5, 2026, says a Google Account backup that has not been updated in five months might be automatically deleted by Google. Treat this as WhatsApp’s backup guidance, not a statement of Google’s general storage policy.
- Each new WhatsApp backup to that Google Account overwrites the previous one, so it is not a version history of older chat backups.
iPhone: iCloud backup
On iPhone, restoration must use the same Apple Account and iCloud Drive used to create the WhatsApp backup. WhatsApp’s current Help Center troubleshooting guidance, checked October 5, 2026, says available iCloud storage must be 2.05 times the backup size in the context it describes. Each new iCloud backup overwrites the old one.
Restore checklist
- Confirm you are setting up WhatsApp on the intended phone and platform.
- Sign in to the Google Account used for the Android backup, or the same Apple Account with iCloud Drive used for the iPhone backup.
- Verify that WhatsApp is using the phone number tied to the backup.
- When WhatsApp offers to restore chat history during setup, choose restore and allow it to complete. If no backup is found, check the account, number, cloud availability, and the platform-specific requirements above.
Android and iPhone backups compared
| What to check | Android | iPhone |
|---|---|---|
| Account and number | Restore with the same Google Account and phone number used for the backup, according to WhatsApp Help Center guidance checked October 5, 2026. | Restore with the same Apple Account and iCloud Drive used for the backup, according to WhatsApp Help Center guidance checked October 5, 2026. |
| Available cloud capacity | Backup size varies; Wi-Fi is recommended to avoid mobile-data charges. A specific capacity multiplier is not stated in the cited WhatsApp Android guidance (WhatsApp Help Center, checked October 5, 2026). | WhatsApp’s iPhone troubleshooting guidance says available iCloud storage must be 2.05 times the backup size (WhatsApp Help Center, checked October 5, 2026). |
| Backup completion and overwrite behavior | Each new backup to the Google Account overwrites the previous one. WhatsApp says backups not updated in five months might be automatically deleted by Google (WhatsApp Help Center, checked October 5, 2026). | Each new iCloud backup overwrites the old one (WhatsApp Help Center, checked October 5, 2026). |
| Encrypted-backup option and recovery | WhatsApp offers an optional end-to-end encrypted backup; recovery requires its password, encryption key, or passkey. | WhatsApp offers an optional end-to-end encrypted backup; recovery requires its password, encryption key, or passkey. |
| Restore location | Restore through WhatsApp on an Android phone; linked devices cannot restore chat history. | Restore through WhatsApp on an iPhone; linked devices cannot restore chat history. |
These are different workflows, not evidence that one platform is universally safer or better. Backup protection depends in part on whether encrypted backup is enabled and whether you can retain its recovery credential.
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Protect a cloud backup with end-to-end encryption
End-to-end encryption for messages in WhatsApp and protection for a cloud backup are separate matters. WhatsApp says standard Google Account backups are not protected by WhatsApp end-to-end encryption unless you enable the encrypted-backup option. Its privacy overview also says cloud providers receive information shared in a backup, including messages. An encrypted backup adds a separate layer of protection for the backup itself.
Turn on encrypted backup
- In WhatsApp on your phone, open Settings > Chats > Chat Backup > End-to-end encrypted backup.
- Follow the in-app prompts to enable it and set up an available recovery method. WhatsApp describes passkey, password, and 64-digit encryption-key options; the options shown may depend on your device and app.
- Store the chosen credential somewhere you can retrieve it when restoring. WhatsApp says it cannot send you a copy, reset the key, or restore the encrypted backup if you lose the credential.
WhatsApp’s passkey guidance lists Android 9 or later, Google Mobile Services version 241217000 or later, and a screen lock as requirements. Check your device and the current app prompts before relying on passkey setup, since compatibility and labels can change.
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What WhatsApp privacy protections do—and do not—cover
WhatsApp says personal messages, calls, status updates, and shared location are end-to-end encrypted in its service. That does not mean every piece of account or technical information is private from all parties, or that an ordinary cloud backup has the same protection. WhatsApp says it processes certain technical and account information, while Google or Apple receive information included in a backup. Enabling encrypted backup addresses the backup-protection question; it does not turn every aspect of using the service into an end-to-end encrypted exchange.
View Once media: limits and backup recovery
View Once is not a guarantee that a recipient cannot keep a copy. WhatsApp warns: “Remember that there are other ways for recipients to save or record view once media or voice messages.” For example, someone can use another camera to photograph or record what is displayed.
Opened View Once items are not included in a WhatsApp backup and cannot be restored from it. Do not treat backup as a recovery method for View Once media after it has been opened.
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