Two of our picks are retrofit smart locks, which replace only the part of the lock that’s on the interior side of a door. Because the exterior part of your deadbolt remains, you can still use ...

TP-Link Systems Inc., a leader in networking and smart home solutions, has unveiled the Tapo DL100 Smart Deadbolt Door Lock.

Smart locks expand this control to your phone or ... but with an added electrical connection between the interior and exterior. Doug Mahoney/NYT Wirecutter Installation of these locks is simple ...

These models offer all the same features as regular smart locks, but instead of fully replacing your deadbolt, they replace part of your existing one (usually the interior side with the thumb-turn).

The interior part is rather large and clumsy ... I tested a number of other smart locks. While they didn’t quite make the cut, they still have great features that are still worth your consideration.

This smart doorknob is practical for locking interior doors but probably won't replace a smart deadbolt on your front door.

You also get two color options — silver and black — allowing you to get a smart door lock that will fit in your home's aesthetics. You can also use this for interior doors that you want to ...

Forget keys! The best smart locks we've tested are secure, easy to install, and provide several convenient ways to control who can access your home and when. I'm PCMag's managing editor for ...