Kwikset wants to Convert your dumb deadbolt into a smart one video - CNET

For $150, the Kwikset Kevo Convert will clamp onto your existing door lock and let you replace your key with your phone.

from
https://www.cnet.com/videos/kwikset-wants-to-convert-your-dumb-deadbolt-into-a-smart-one/#ftag=CADa08b18a