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What does linking a device on WhatsApp do?

WhatsApp allows users to link multiple devices to one account so they can access their chats and messages across platforms. When you link a new device to your WhatsApp account, it shares your chat history and data from your primary device to the newly linked device. This allows you to pick up chats seamlessly when switching between devices without losing any prior messages or data.

Why link devices on WhatsApp?

There are a few key reasons to link additional devices to your WhatsApp account:

  • Access chats on multiple devices – Linking lets you stay logged in on up to 4 devices at once so you can access your chats no matter which device you’re using.
  • Seamless switching – Linking syncs your chat history across devices so you can switch from phone to tablet to computer without missing messages.
  • Added convenience – Get WhatsApp access on your computer without having to keep your phone connected.
  • More flexibility – Linking gives you more options for when and where you can use WhatsApp.

The main benefit is the convenience and flexibility of being able to use WhatsApp web on your computer or portal on your tablet without needing your phone nearby. It allows for seamless messaging across all linked devices.

How does linking devices work?

When you link a new device to your WhatsApp account, here is what happens behind the scenes:

  1. WhatsApp generates a private encryption key to securely link the new device.
  2. Your message history is re-encrypted and transmitted from your primary device to the newly linked device.
  3. Ongoing chats and new messages will be synchronized across linked devices.
  4. If you link a new primary device, other previously linked devices will be unlinked automatically.

This linking process allows devices to access your chats and messages while keeping your account secure. The encryption keys enable your data to be transmitted and accessed only by your authorized devices.

What devices can you link to WhatsApp?

You can link up to 4 companion devices in addition to your primary smartphone device on WhatsApp. Here are the types of devices that can be linked:

  • Desktop: WhatsApp Web on your computer’s browser and WhatsApp Desktop, the standalone app for PCs and Macs.
  • Tablets: WhatsApp on iPad or Android tablets.
  • Secondary smartphones: An additional mobile phone or tablet besides your main one.

So in total, you could have WhatsApp running simultaneously on up to 5 devices including your primary smartphone by linking a PC, tablet, and secondary phone.

How to link a device to WhatsApp

It’s quick and easy to link companion devices to your WhatsApp account. Here are the steps:

  1. Open WhatsApp on your main smartphone device.
  2. Go to Settings > Linked Devices.
  3. Tap on “Link New Device.”
  4. Open WhatsApp on the device you want to link either by scanning the QR code or through WhatsApp Web.
  5. Confirm the linking code on both devices.

That’s it! Once linked, the new device will start receiving your latest chats and synced message history from WhatsApp.

Can you unlink devices?

Yes, you can unlink devices from your WhatsApp account at any time. Here are two ways to unlink a device:

  • On the primary device, go to Settings > Linked Devices and tap on the device you want to unlink.
  • On the companion device, open WhatsApp and go to Linked Devices > Unlink Device.

When a device is unlinked, it will no longer have access to your WhatsApp account or any of the linked chat data. The device will have to be re-linked to regain access.

What happens when you link a new primary device?

Your primary device is the main smartphone that your WhatsApp account is registered to. When you designate a new primary device it means unlinking your old primary smartphone and replacing it with the new one.

Here’s what happens when you switch your primary device on WhatsApp:

  • The new primary device gets your WhatsApp number transferred over.
  • All other previously linked devices get automatically unlinked.
  • To regain access, companion devices will need to be re-linked by scanning a new QR code from the new primary device.
  • Your chat history from the old primary device syncs across to the new primary one.

So when changing your primary device, be prepared to re-link your PC, tablets, etc. and possibly copy over chat backups to retain your full message history.

Troubleshooting tips

Here are some troubleshooting tips if you have any issues linking devices to WhatsApp:

  • Make sure your devices are running the latest version of WhatsApp and have a stable internet connection.
  • On your primary device, check Settings > Linked Devices to confirm the linking code matches the companion device.
  • Try re-scanning the QR code from your primary device if the new device won’t link.
  • Restart both the primary and secondary device and verify internet connectivity.
  • Unlink and re-link the device having issues after restarting.
  • Check for software updates for WhatsApp on each device.

If you continue having trouble linking after trying these steps, contact WhatsApp directly for further support on troubleshooting.

Limits on linked devices

WhatsApp does limit the number and type of devices you can link to one account. Here are the key limitations:

  • Only up to 4 companion devices can be linked in addition to 1 primary device.
  • You can’t link multiple devices of the same type, like 2 tablets.
  • Devices will be automatically unlinked if not used for over 14 days.
  • Tablets and computers must have the WhatsApp app open to receive messages.
  • Linked devices may have limited functionality compared to the primary smartphone.

Make sure to unlink unused devices periodically to free up linked slots. And note chat functionality may be more limited on secondary devices apart from your primary smartphone when it comes to certain features.

Can you use WhatsApp on multiple phones?

WhatsApp’s multi-device linking does allow you to use WhatsApp on two phones at the same time. To do this:

  1. Set one smartphone as your primary device with your WhatsApp number.
  2. On the second smartphone, install WhatsApp and link the device through QR code.
  3. The second phone will now mirror chats and messages from your main smartphone.

A few things to keep in mind when using WhatsApp on two phones concurrently:

  • Only the primary device can initiate new chats.
  • Call functionality may be limited on the secondary phone.
  • Some account management features are restricted on linked smartphones.
  • Notifications and call rings will be disabled on secondary devices if active on main one.

While you can access chats on two phones, there are some functionality limits to be aware of when using a secondary smartphone.

WhatsApp Web vs. Linked Devices

WhatsApp Web was previously the only way to use WhatsApp on other devices besides your phone. So how does it compare to the newer native app linking method?

WhatsApp Web Linked Devices
Requires phone to be on and connected Works independently without phone
Syncs messages in real-time Periodic syncing of recent messages
Battery drain on phone No impact on phone battery
Can’t make calls Allows calls on linked devices
Doesn’t work well on unstable connections More reliable on different networks

The key differences are linked devices don’t rely on your phone being powered on and connected, provide more functionality, and offer a more native app experience across platforms.

Key takeaways

Here are some key points to remember about linking devices on WhatsApp:

  • Linking lets you access chats on up to 4 other devices besides your primary smartphone.
  • Your message history syncs across linked devices so you can pick up past chats.
  • You can link desktops, tablets, and additional phones as companion devices.
  • Linking allows seamless switching between devices without losing messages.
  • You can unlink devices at any time to revoke access to your WhatsApp account.
  • Your primary device controls new chat creation and full account management.
  • Secondary devices may have limitations around calling, notifications, and certain features.

Overall, linking devices provides more flexibility and convenience for accessing WhatsApp across multiple platforms. Just be aware of the limits on number of devices and functionality differences compared to your primary smartphone.

Conclusion

Linking devices is a useful WhatsApp feature that lets you seamlessly synchronize your chats and messages across up to 4 smartphones, tablets, PCs, and Macs. It provides the convenience of cross-platform messaging without compromising security.

Key highlights include accessing chats on multiple devices, hassle-free switching between devices, and taking WhatsApp use beyond just your phone. Limitations depend on whether a device is primary or secondary.

In summary, linking your devices on WhatsApp grants flexibility and portability to your messaging experience. It enables you to pick up chats where you left off no matter which linked device you’re using, while keeping your account safe through end-to-end encryption.