How can WhatsApp be used on two phones?
It is possible to use an account of this messaging app on two devices thanks to the ‘companion mode’ function that, similar to how WhatsApp Web is used, it is possible to have two phones linked simultaneously.
It is very easy to use this tool because you just have to go to the link device option, only available so far on Android, and click on the link a new phone option, from there it will display a QR code that you must scan with the phone you want to link, and accept to display your app conversations.
It is important to note that it is possible to have two linked smartphones, but you will not be able to have the same account on two different numbers, since in that case it would be a new WhatsApp account.
“You can only verify a WhatsApp account with one phone number and on one phone at a time. If you have a phone with two SIM cards, you must choose one of the numbers to verify your WhatsApp account. There is no option to have a WhatsApp account with two phone numbers”, says the application.
How do I know that my account is being used on more than one device?
In a very similar way to how you can link your WhatsApp account, it is very easy to know on which devices you have your application open and from there authorize or block access. You just have to go to the menu and look for the Linked Devices option, where it will display which computer and which phones are connected to your account.
In case you do not recognize a connection, you can block and close the session from there.