WhatsApp used to work on only one phone at a time. Now you can link your account to a second phone, plus computers and tablets, without moving your number.

How linking works

  • Your main phone stays the primary device.
  • You can link up to four devices.
  • Linked devices work even when the main phone is off.
  • WhatsApp logs linked devices out if you do not use WhatsApp on your main phone for over 14 days.
  1. On the second phone, install WhatsApp and open it.
  2. Instead of registering a number, choose the option to link as a companion device (shown in the menu on the welcome screen). A QR code appears.
  3. On your main phone, open WhatsApp → Linked devices (Android: three dots; iPhone: Settings).
  4. Tap Link a device and scan the QR code.

WhatsApp also supports linking with your phone number and a one-time code instead of a QR code: choose “link with phone number instead” and enter the code from the second phone on your main phone.

WhatsApp updates its menus often. If an option name differs on your phone, look for “Linked devices” or “Link to existing account”.

Keep it secure

  • Only link devices you control.
  • Check Linked devices regularly and log out anything unfamiliar. See check who is linked to your WhatsApp.
  • Never scan a QR code or enter a linking code that someone else sends you.
  • Turn on two-step verification.

Using a computer instead? See how to use WhatsApp on your computer.

This guide was checked in October 2026. Menus and services change, so if something looks different on your phone, check with your provider.

Common questions

Can I use the same WhatsApp number on two phones?

Yes, as a linked device. Your main phone stays the primary device, and you can link up to four devices.

Does the main phone need to be on?

No, linked devices work independently, but WhatsApp logs them out if the main phone is not used for over 14 days.

Can I have two different WhatsApp numbers on one phone?

That is different: many phones support dual apps, and WhatsApp Business can run a second number alongside WhatsApp.

Is linking a second phone safe?

Yes, if you link it yourself. Check Linked devices regularly and log out any you do not recognise.

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