Nymi ($79) is a bracelet that promises to make your life a lot easier, all thanks to that little bump-bump, bump-bump going on in your chest. Apparently every person has a unique heartbeat, a cardiac rhythm if you will, and reading that rhythm lets Nymi recognize your beat and only your beat, freeing you up to wirelessly control your phone, car, and more with Bluetooth and simple gesture controls. It’s a life without passwords, and isn’t that what we all crave?