Smart entry locks are the biggest improvement to home security since the lock-and-key system was invented more than a thousand years ago. In many cases, smart locks dispense with physical keys ...

The Level Lock+ Connect does just that, looking like a low-tech key lock while packing a lot of technology inside your door—literally. The small lithium battery fits into the door bolt ...

A smart lock lets you go key-free and know whenever someone comes and goes. Our pick, the Schlage Encode Smart WiFi Deadbolt, is sturdy, simple, and reliable. The Schlage has the highest security ...

Deadbolts significantly improve security over key-in-knob locks alone. Electronic locks let you lock and unlock your door without a key. Cons: They lack the convenience and extra features of smart ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality ...