The best smart locks for securing your home

This content originally appeared on Mashable for a US audience and has been adapted for the UK audience.

With the ever-growing selection of smart devices, you sometimes have to ask yourself: what will they think of next? In the case of the smart lock, it's like a gadget from a science-fiction film — a self-unlocking door that you control from your smartphone.

Actually, smart locks have been around for a few years and they're certainly nothing new to security-conscious homeowners....