Tokenize develops Token, a biometric-based wearable ring that can make payments, power up a computer, and part doors. The ring is integrated with MasterCard, Microsoft, Visa, HID, FitPay and the FIDO Alliance. Token uses a combination of fingerprinting (there’s a fingerprint sensor at the base of the ring) and an optical proximity sensor to ensure that a user’s credentials can’t be accessed by a third party. Using an app (available for iOS and Android), Tokenites can pair the ring and their biometric information with anything from their credit cards to their car keys.