Today’s door locks can be separated into three categories—conventional, nonconnected deadbolts; smart locks; and retrofit smart locks. Here’s what you need to know about them. These models ...

Door Lock Ratings Protect your home and family with the best door lock or smart lock. Some door locks offer extra security with deadbolt and spring-bolt reinforcement technology.

It's available in black or white and has no monthly subscription ... due to its incredibly easy installation, fitting 90% of UK door locks and is compatible with most European and American models.

The Philips smart door lock gives you a plethora of choices ... Each model is available in three finishes: matte black, polished black, or satin nickel. For this review, I tested the most ...