The Tapplock One Smart Padlock is more secure than your standard padlock. Armed with a capacitive sensor, it unlocks in under a second using just your fingerprint. That means that no one else is opening this lock unless they get your fingerprints Mission Impossible style. And if you do want others to have access to it, the device can store up to 500 different prints. It can also unlock via an app over Bluetooth and has backup morse code unlocking. Other features include a Zamak 3 zinc alloy body and cut-resistant stainless steel shackle that are both water and weatherproof. It comes in silver, gunmetal, and black colors.