Nymi by Bionym:
Your Nymi lets you use your unique cardiac rhythm to authenticate your identity, allowing you to wirelessly take control of your computer, your smartphone, your car and so much more.
As you wake up know that wherever you go the Nymi will be interacting with your devices, creating a smart, password and key-free environment. The Nymi will also have customizable notifications. If you’re the kind of person who likes to be connected to their emails, texts and social updates, you’ll never be behind with the Nymi.