Knowing how to install WhatsApp on 2 devices with the same number is useful if you want to use WhatsApp on both your phone and another device such as a second phone, tablet, or computer. WhatsApp officially allows one phone number to be linked to multiple devices using its Linked Devices feature, making it possible to chat without constantly switching phones. Install WhatsApp on the Primary PhoneYour main phone must already have WhatsApp set up. Link More Than Two Devices If NeededWhatsApp allows multiple linked devices. You can:Link up to four additional devicesUse phones, tablets, or computersManage linked devices from settingsRemove devices anytimeThis is useful for work and personal use.