The new Nuki Smart Lock ($159), the company's first designed for US deadbolts, is the most advanced retrofit smart lock I've tested. It features a sleek, compact design that looks and works like a regular doorknob, but it's much more than a doorknob. It can automatically unlock as you approach, lock behind you, unlock using a keypad or your fingerprint, and be controlled from anywhere. It also supports every smart home platform through Matter, and you can still use your existing key - if you're old-school like that.
I love the button integrated into the stainless steel design that locks and unlocks with a single press - no need to turn th …