WhatsApp’s legacy architecture used a smartphone as the source of truth. But with the new multi-device capability, up to four other nonphone companion devices can connect to WhatsApp independently while still maintaining the same level of privacy and security.
WhatsApp’s legacy architecture used a smartphone as the source of truth. But with the new multi-device capability, up to four other nonphone companion devices can connect to WhatsApp independently while still maintaining the same level of privacy and security.

WhatsApp Multi-device graphic