It will be seen that the locking and the leverage are attained without the addition of a single piece, or fraction of expense, over the common bolt. The cost of material and manufacture is the ...

ULTRALOQ Bolt Fingerprint Smart Lock,Built-in WiFi Keyless Entry, Biometric Smart Deadbolt with Door Sensor, Voice Control with Siri/Alexa/Google,Smart Home Automation List Price: $199.99 New From ...

It costs a bit more (the Wi-Fi model is $290), but no doubt it's a cool feature. The Wyze Lock Bolt is shockingly affordable, costing a fraction of most other smart locks on this list. It does ...