Smart locks like Kwikset's Kevo began to appear in 2013. Using a Kevo, your smartphone transmits the key by bluetooth from your pocket, then you touch the lock to open it. Bluetooth uses less ...

The Kwikset Kevo Doorlock – a $200 deadbolt – can be opened with a flathead screwdriver. Other Bluetooth ‘smart locks’ are made of plastic. The tools [Anthony] used for these wireless ...