Your companion devices unlock your PC
Windows Hello lets you use your digital wristband, smart watch, phone and other companion devices to quickly unlock your Windows PC without using a password.2 By already certifying your identity, these devices give you another choice for quick, secured sign-ins.
1 Based on average time comparison between typing a password respectively detecting a face or fingerprint to authentication success.
2 Available for selected companion devices and selected Windows 10 editions. Might require that PC and companion devices are joined in Azure Active Directory or Active Directory and paired via Bluetooth.
3 Windows Hello requires specialized hardware including a Windows Hello capable device, fingerprint reader, illuminated IR sensor or other biometric sensors and capable devices.