With WearAuthn, your watch can be used as a second factor for many of your online accounts (Google, Microsoft, GitHub, Twitter, ...). WearAuthn is based on the FIDO2 and WebAuthn standards and can be used via Bluetooth and NFC (if supported by your watch).
* Windows 10 with Chrome, Edge or Firefox
* macOS with Chrome
* Linux with Chrome; may require additional setup
* Android with Chrome or Firefox
* iOS 13.3+ with Safari
Single-factor login is possible on login.live.com using Chrome, Edge or Firefox on Windows 10.