Some models will even unlock the door ... smart locks allow you to keep your current keys and deadbolt while adding on smart ...

Most exterior doors have a lock at the door handle and a deadbolt lock installed slightly higher on the door. Consider installing a door reinforcement lock for added peace of mind and security.

If you have a UPVC front or back door, you likely have a multi-point lock; they're not common elsewhere, but if you have to pull the handle up before you can turn the key to lock the door that's ...