how can i link my whatsapp to another phone

To link your WhatsApp account to another phone, you can use the "Linked Devices" feature that WhatsApp provides. The process involves scanning a QR code from your primary phone (where WhatsApp is already logged in) on the new phone you want to link. This allows you to use the same WhatsApp account on both phones simultaneously. Here are the steps to do it:

1. On the new phone, install WhatsApp but do not enter your phone number to register.
2. Instead, look for an option like "Link as companion device" or "Linked Devices."
3. On your primary phone (where your WhatsApp account is active), open WhatsApp, go to Settings (or More options on Android), then "Linked Devices."
4. Tap on "Link a device," and if prompted, unlock your phone using biometric authentication or PIN.
5. Use your primary phone to scan the QR code displayed on the new phone.
6. Once the QR code is scanned successfully, your WhatsApp account will be linked, and chats will start loading on the new phone.

WhatsApp allows up to four linked devices simultaneously without needing your primary phone to stay online constantly. However, you should reconnect your primary phone every 14 days to keep linked devices active. This feature works for both Android and iPhone and supports linking phones, tablets, and desktop/web devices.