WhatsApp is working on a function that will allow you to link a secondary mobile device to your WhatsApp account without requiring an active Internet connection on the main device in order to send messages. The chats will automatically sync across both devices.
The "companion mode" function was discovered last month in the WhatsApp beta for Android 126.96.36.199 update.
According to WABetaInfo, the companion mode has been released to some beta testers on Android.
Is WhatsApp is ready to offer users the possibility of having the same account on several devices?