<ul><li>You can use WhatsApp on multiple devices with just your phone number registered on the service.</li><li>Each linked phone connects to WhatsApp independently, ensuring end-to-end encryption and automatic logout from companion devices if the primary device is inactive for long.</li><li>To set up WhatsApp on another device, choose the hidden device linking option and scan the QR code on your primary phone.</li><li>Account-level features like two-factor authentication and changing phone numbers only work in WhatsApp on your primary phone.</li></ul>

How to use the same WhatsApp account on two or more phones

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