The holy grail that WhatsApp users were waiting for has almost arrived. almost. Today, Facebook announced a limited public beta of WhatsApp’s new phoneless multi-device feature, and you can sign up by following the steps described on this page. You must be on the latest beta version of WhatsApp for Android or iOS.
The new beta seems to be limited to certain markets, but the company hasn’t mentioned exactly which ones, so if you’re interested, try to see if it works for you. This may not be the case because you are not in an eligible country.
There are a lot of things that won’t work yet, here’s the list:
• Displaying live location on related devices
• Pin chats to WhatsApp Web or Desktop
• Join, view and reset group invitations from WhatsApp Web and Desktop. You’ll need to use your phone instead
• Send a message or call someone who uses a very old version of WhatsApp on their phone will not work from your linked device
• Calls from Portal or WhatsApp Desktop to linked devices that are not enrolled in the cross-device beta
• Other WhatsApp accounts on your portal will only work if those accounts have joined the cross-device beta
• WhatsApp Business users cannot change their company name or labels from WhatsApp Web or Desktop
Until now, if you wanted to use WhatsApp on a different device from your phone, the handset still had to be connected to the internet, because everything was ping in both directions. With the new feature, you can use WhatsApp on up to four non-phone devices, even if your handset’s battery is flat.
Yes, you read that right – no phone – so you still can’t use the same WhatsApp account on more than one phone. Each companion device will connect to your WhatsApp independently while maintaining the same level of privacy and security through end-to-end encryption (E2EE). E2EE is maintained even when synchronizing your data such as contact names, chat archives, tracked messages, etc.
As you can imagine, achieving this was quite complicated, and it required a redesign of WhatsApp’s architecture. If you’re interested in how Facebook’s engineers have been successful, be sure to visit the source linked below, which contains a long explanation.