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How Do Keyless Door Locks Work?

The advent of technology has dramatically minimised the use of traditional door locks as keyless door locks have gradually taken over. 

Keyless door locks are also referred to as smart locks because they allow users to have access to their homes without the use of traditional keys.  

Unlike traditional door locks that involve the use of physical keys to lock and unlock doors, keyless door locks can be used without keys through the use of fob door locks, fingerprint door locks, facial recognition and combination door locks.

  • Fob door locks: Fob door locks are digital keys that work by connecting your device to a mechanism within the fob to unlock your door
  • Fingerprint door locks: This works exactly like smartphones, where you have to place your fingerprint on the phone to unlock it. When you place the recognised finger on the door, it immediately unlocks.
  • Facial recognition locks: As the name implies, this method of keyless door lock works by unlocking the door when it recognises a registered face. However, when an unregistered face tries to unlock the door, it raises the alarm.
  •  Combination door locks: This works like a pin code where you have to set a unique code to unlock your door

These methods completely eliminate the need for physical keys, making keyless door locks convenient since it saves users the stress of carrying a bunch of keys around or searching for house keys before gaining entry into their homes.

Keyless door locks operate somewhat similar to regular key locks because regardless of the keyless door lock method you choose to use, the locking mechanism rotates inwards or outwards when your door is being locked or unlocked.

Are keyless door locks secure_

Are Keyless Door Locks Secure?

Keyless door locks have a unique design which is difficult to copy, and with this, you can be guaranteed that no one will have unauthorised access to your home since anyone visiting your home needs to have your security code. If you have cause to give your codes to guests like extended family, repairmen or babysitters, you can share temporary codes. However, if you feel your security has been meddled with, you can easily change your security lock combination without needing an expert service.

What Are The Best Keyless Door Locks?

Some of the best keyless door locks include: 

Schlage Connect Smart Z-Wave Plus

Schlage Connect Smart Z-Wave Plus: 

This smart lock by Schlage is one of the best keyless door locks on the market today. The fact that it comes incorporated with Z-wave plus capabilities, which allows you to lock and unlock your door using your voice, makes it an outstanding keyless door lock. 


  • Remote access
  • Upgraded security
  • Voice control works with Alexa
  • ANSI grade 1 security rating
  • Z-wave plus


The Schlage Connect Smart Z-Wave Plus costs $219


  • ANSI rating
  • Various styles and finishes
  • Ring alarm system


  • Hardware is large
  • Does not have a smartphone application
  • Requires an expert to install
August WiFi Smart Lock

August WiFi Smart Lock: 

The August WiFi smart lock is particularly useful for renters because it saves them the stress and cost of installing a new door lock. This smart lock allows for easy installation and is built with a design that easily blends in to fit the style of any home. Due to the compact design of this smart lock, you can retain your existing keys. 


  • Voice command works with smart platforms like Google Assistant, Alexa and Siri.
  • The WiFi connection is secure.
  • Smart alerts which keep you updated about your door’s status
  • Has a smartphone app that is compatible with Android and iPhones
  • Low battery notification
  • DoorSense Sensor
  • Geofencing
  • Remote access


The August WiFi smart lock costs $229.99


  • You can retain your key
  • WiFi is inbuilt
  • Size is compact
  • Design is sleek
  • Quick installation


  • Does not have a security rating
  • Battery life span is short
  • This smart lock is expensive
Yale Assure Lock

Yale Assure Lock: 

Available in satin, nickel and bronze finishes, this smart lock has a sleek design and ensures ease of use for users with its touchscreen keypad.


  • Design is sleek
  • BHMA Grade 2 certified
  • Extra charger
  • Automatic lock and relock
  • Works perfectly with Alexa, Homekut and Google Assistant


This smart lock costs $169


  • Quick and easy installation
  • Has a security rating
  • Automatic lock
  • Design is sleek


  • To remotely control the lock, an additional module is required
  • The touchscreen is not quick to respond
Ultraloq U-Bolt Pro WiFi smart lock

Ultraloq U-Bolt Pro WiFi Smart Lock: 

This smart lock is described as versatile because it allows up to 6 keyless methods of gaining entry to homes. 

These methods are through the smartphone app, apple watch, code, magic shake, fingerprint and mechanical key. 


  • ANSI Grade 1 security rating
  • Smartphone app with which you can keep track of visit logs
  • Installation is DIY
  • IP65 rating
  • Door sensor
  • Automatic lock and unlock
  • Sleek design
  • Micro USB for emergency power


The Ultraloq U-Bolt Pro Wifi smart lock costs $249


  • Has a security rating
  • Various entry modes
  • Resistant to weather and dust
  • IFTTT compatibility
  • Fingerprint reader


  • Design is not common
  • It is expensive
Schlage Encode Smart WiFi Deadbolt

Schlage Encode Smart WiFi Deadbolt: 

The Schlage Encode comes in the Camelot & Century styles and is available in satin nickel, aged bronze and matte black colours. 


  • Built-in WIFI
  • Voice control is compatible with Alexa and Google Assistant
  • Low battery indicator
  • Built-in alarm
  • ANSI Grade 1 security rating
  • Advanced security
  • Lock and unlock from anywhere
  • The mobile app can be used on Android and iOS devices.


This smart lock by Schlage costs $250


  • You can retain your keys
  • It has a security rating
  • Does not require extra accessories
  • Fingerprint resistant
  • Installation is easy
  • It integrates perfectly with Ring devices


  • It is not compatible with Homekit and IFTTT


The use of keyless door locks in homes is convenient, and as such, this method of gaining entry into homes is highly recommended because it provides a great level of security for homes. 

The above listed keyless door locks come with various features and pros and cons that will help guide your decision making.

Related Post: What does a Smart Lock do?

Product Image Gallery – How Do Keyless Door Locks Work?

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Zeeshan Yousaf

Zeeshan is the founder of the Tech Guru Guy blog. He writes articles about the latest technology gadgets such as laptops, smartphones, home security, tablet devices, headphones, and much more. He has been at the forefront of technology for the past 10 years, working diligently to create quality content for his audience. He is addicted to reading books and watching movies, but not as much as he loves posting content on his blog. He loves playing cricket and table tennis. You can always contact Zeeshan via Tech Guru Guy's contact page.