Smart Locks: Keyless Living Explained
Traditional keys are becoming a thing of the past as smart locks revolutionise home security and convenience. Keys are yesterday's tech, your smart home needs a smart lock. These innovative devices eliminate the frustration of lost keys, forgotten combinations, and the security risks of traditional locks while offering unprecedented control over who enters your home and when.
Smart locks represent one of the most practical and immediately beneficial smart home upgrades available today. Unlike some smart home devices that offer convenience without clear necessity, smart locks solve real everyday problems while enhancing security. Whether you're tired of fumbling for keys in the dark, want to let in service providers while you're away, or simply desire the peace of mind that comes with knowing exactly who accessed your home, smart locks deliver tangible benefits from day one.
This comprehensive guide will walk you through everything you need to know about smart locks, from understanding different types and essential features to choosing the perfect lock for your home and lifestyle. By the end, you'll understand how keyless living can transform your daily routine while keeping your home more secure than ever.
Understanding Smart Lock Technology
Smart locks combine traditional deadbolt security with modern connectivity and control systems. At their core, these devices replace or enhance your existing door lock with motors, sensors, and wireless communication capabilities that allow remote operation and monitoring.
The fundamental advantage of smart locks lies in their multiple access methods. Instead of relying solely on physical keys, smart locks can be opened using smartphone apps, keypads, fingerprint scanners, or even voice commands. This flexibility eliminates many common security and convenience issues associated with traditional locks.
One key advantage is improved security. Smart locks often feature encryption technology, offering more robust protection against lock-picking or traditional break-ins. They also allow for keyless entry, reducing the risk of losing keys or having unauthorised copies made.
Modern smart locks also provide detailed access logs, showing exactly when your door was opened and by whom. This information proves invaluable for families with teenagers, Airbnb hosts, or anyone who regularly provides access to service providers or houseguests.
Types of Smart Locks
Understanding the different types of smart locks available will help you choose the option that best fits your door, budget, and technical comfort level.
Full Deadbolt Replacement Locks
Generally, there are two types of smart locks: full-on deadbolt replacements and deadbolt adapters. The former replaces your entire deadbolt, while the latter requires you to only swap out the part of your deadbolt that's inside your house.
Full replacement locks offer the most comprehensive smart lock experience. These systems replace your entire existing deadbolt with a new smart-enabled unit that includes all components from the exterior handle to the interior mechanism. They typically offer the most features, best integration capabilities, and most reliable performance.
The main advantages of full replacement locks include complete control over the locking mechanism, typically better battery life due to more space for batteries, more access options including keypads and biometric scanners, and often superior build quality and security features.
However, full replacement locks require more extensive installation, may not fit all door types or thicknesses, and typically cost more than adapter-style locks. They also change the exterior appearance of your door, which may be a consideration for some homeowners.
Smart Lock Adapters
Smart lock adapters work with your existing deadbolt by replacing only the interior portion of your lock. This approach preserves your existing key and exterior lock appearance while adding smart functionality.
If you want a smart lock but don't want to replace your deadbolt, the August Smart Lock Pro is an excellent option. It works with all the major smart home ecosystems (including Alexa) when bought with the additional Connect adaptor, and we found it a cinch to install.
The primary benefits of adapter-style locks include easier installation with no exterior changes, ability to continue using existing keys as backup, lower cost compared to full replacement systems, and compatibility with most existing deadbolts.
The trade-offs include fewer access options (typically no keypad or biometric options), shorter battery life due to space constraints, and potential compatibility issues with some deadbolt types or door configurations.
Smart Deadbolts with Keypads
Keypad smart locks combine the security of deadbolt replacement with the convenience of code-based entry. These locks feature numeric keypads on the exterior, allowing access through programmable codes without requiring a smartphone.
Keypad locks excel in situations where smartphone dependency isn't ideal, such as homes with elderly residents, rental properties, or families with children who don't carry phones. They also provide reliable backup access when phone batteries die or connectivity issues occur.
Modern keypad locks often include features like scramble codes (entering random numbers before your actual code to prevent shoulder surfing), multiple user codes with different access levels, and temporary codes that automatically expire.
Biometric Smart Locks
Biometric smart locks use fingerprint recognition for access, offering the ultimate in keyless convenience.
Ultralock U-Bolt Pro WiFi – Best Overall Smart Lock Type:
Keypad • Fingerprint • App • Mechanical Key
Why It Leads: Combines biometric access, remote unlocking, auto-lock, offline backup, and Alexa integration in a compact, weatherproof design.
These locks provide the fastest access method once set up, as a simple finger touch unlocks the door. They're particularly convenient for people with mobility issues or those carrying packages, groceries, or children.
However, biometric locks can be affected by weather conditions, may have difficulty reading damaged or dirty fingers, and typically cost more than other smart lock types. They also require careful consideration of which family members' fingerprints to register and how to handle access for guests or service providers.
Essential Smart Lock Features
Modern smart locks offer numerous features, but understanding which ones truly matter for your lifestyle will help you make the best choice without overpaying for unnecessary capabilities.
Multiple Access Methods
The best smart locks offer multiple ways to unlock your door, providing flexibility for different situations and backup options when your primary method isn't available. Common access methods include smartphone app control, physical key backup, numeric keypad entry, fingerprint recognition, and voice control integration.
Having multiple access methods ensures you're never locked out due to dead phone batteries, forgotten codes, or technical issues. It also allows different family members to use their preferred access method.
Remote Access and Control
Remote access capability allows you to lock or unlock your door from anywhere with internet connectivity. This feature proves invaluable for letting in service providers, family members who forgot their keys, or guests arriving before you return home.
You can also give out temporary electronic "keys" to guests like dog sitters and caretakers, so there's no risk of someone copying a physical key to your home without you knowing.
Quality remote access includes real-time status updates showing whether your door is locked or unlocked, the ability to receive notifications when the lock is operated, and reliable connectivity that works even when you're traveling.
Access Logs and Monitoring
Access logs track when your door is opened and which method was used, providing valuable security insights and peace of mind. These logs help you monitor family members' comings and goings, verify that service providers accessed your home as scheduled, and identify any unauthorised access attempts.
Advanced logging features include user identification (showing which family member or guest accessed the door), timestamp accuracy, and the ability to export or share access history. Some locks also provide photo capture capabilities, taking pictures when certain access methods are used.
Auto-Lock Functionality
Auto-lock automatically secures your door after a preset time period, eliminating the worry of leaving home with an unlocked door. This feature is particularly valuable for busy families or anyone prone to forgetting to lock their door.
Customisable auto-lock settings allow you to adjust the timing based on your preferences, with options typically ranging from 30 seconds to several minutes after closing the door. Some advanced systems can even detect when you've left the area using geofencing technology.
Smart Home Integration
That means it offers many of the same features as other August smarts below, including remote control, an access log, voice control (via Amazon Alexa, Apple Home/Siri, and Google Assistant), electronic keys, and a door open/close sensor.
Integration with major smart home platforms allows your lock to work seamlessly with other connected devices. This enables advanced automation scenarios like automatically turning on lights when you unlock the door, adjusting your thermostat when you leave, or receiving notifications on your smart display when someone arrives.
Popular integration platforms include Amazon Alexa, Google Assistant, Apple HomeKit, Samsung SmartThings, and dedicated security systems. Matter support is becoming increasingly important for future-proofing your smart lock investment.
Battery Life and Power Management
Battery life varies significantly between smart lock models and usage patterns. Most smart locks use AA or lithium batteries and typically last 6-12 months with normal use. Some models offer rechargeable batteries or backup power options.
Important power-related features include low battery warnings sent through the app, backup power options (such as external battery terminals for emergency unlocking), and power-saving modes that extend battery life during extended absences.
Top Smart Lock Recommendations for 2025
Based on expert testing and user reviews, here are the leading smart locks across different categories and price points.
Best Overall: August Wi-Fi Smart Lock
After testing dozens of models, we found the best smart lock for most people is the August Wi-Fi Smart Lock.
The August Wi-Fi Smart Lock excels in ease of installation, reliability, and smart home integration. As an adapter-style lock, it works with most existing deadbolts and can be installed in minutes without changing your door's appearance or requiring new keys.
Key features include built-in Wi-Fi for remote access without additional hubs, compatibility with major smart home platforms, detailed access logs, and the ability to automatically detect when you're approaching with your phone for hands-free unlocking.
Best Full Replacement: Yale Assure Lock 2
The Yale Assure Lock 2 is a full-featured replacement smart lock with a sleek, modular design that lets you customise your access methods and connectivity options.
This full replacement lock offers exceptional build quality and security features. Its modular design allows you to choose from keypad, key-free, or combination configurations, and you can add connectivity modules for different smart home platforms.
The Yale Assure Lock 2 provides robust security features, multiple access methods including backup keys, weather-resistant construction, and compatibility with most standard doors.
Best Budget Option: Wyze Lock
The best smart locks are U-Bolt Wi-Fi Pro, Wyze Lock, and Schlage Encode Plus Smart Wi-Fi Deadbolt. The Wyze Lock offers excellent value for budget-conscious buyers without sacrificing essential features.
Despite its affordable price, the Wyze Lock includes remote access, access logs, auto-lock functionality, and integration with major smart home platforms. It's an adapter-style lock that works with most existing deadbolts.
Best Premium Choice: Schlage Encode Plus
The Schlage Encode Plus represents the premium end of smart locks, offering built-in Wi-Fi, comprehensive access options, and exceptional build quality. This full replacement lock includes a backlit keypad, fingerprint recognition, and advanced security features.
Premium features include weather-resistant construction rated for extreme temperatures, encrypted wireless communication, comprehensive access logs, and integration with professional security systems.
Best Biometric: U-Bolt Pro WiFi
Ultralock U-Bolt Pro WiFi – Best Overall Smart Lock Type:
Keypad • Fingerprint • App • Mechanical Key
Why It Leads: Combines biometric access, remote unlocking, auto-lock, offline backup, and Alexa integration in a compact, weatherproof design.
The U-Bolt Pro WiFi offers multiple access methods including fingerprint recognition, making it ideal for users who want the convenience of biometric access with backup options for guests and emergencies.
Installation Considerations
Proper installation is crucial for smart lock security and functionality. Understanding installation requirements will help you choose the right lock and determine whether professional installation is necessary.
DIY Installation vs. Professional Installation
When we're talking about the installation process, there are two types of smart locks to consider: adapted smart door locks, which use your existing lock hardware to essentially add smart technology to your door, and native smart door locks, which require an entirely new lock to be installed.
Adapter-style locks typically offer the easiest DIY installation, often requiring only a screwdriver and taking 10-30 minutes to complete. These locks work with most existing deadbolts and don't require changes to your door.
Full replacement locks require more extensive installation, including removing your existing deadbolt, potentially enlarging holes in your door, and ensuring proper alignment of all components. While many homeowners can handle this installation, it's more complex and may require professional assistance for optimal results.
This is an affordable smart lock that covers the basics well, but it requires meticulous installation and is best handled by a professional. Wi-Fi setup is tricky as well, though it works well once in place.
Door Compatibility
Before purchasing a smart lock, verify that your door and existing hardware are compatible. Key factors include door thickness (most locks work with doors 1-3/8" to 1-3/4" thick), deadbolt backset (typically 2-3/8" or 2-3/4"), and door material and condition.
Some smart locks have specific requirements for door types, hardware brands, or installation orientations. Check manufacturer specifications carefully to avoid compatibility issues.
Tools and Skills Required
Most smart lock installations require basic tools including screwdrivers, measuring tape, and possibly a drill for new installations. The skill level required varies significantly between adapter and replacement locks.
Consider factors like your comfort with technology setup, experience with basic home improvement projects, and available time for installation and troubleshooting when deciding between DIY and professional installation.
Security Considerations
While smart locks offer enhanced security features, understanding potential vulnerabilities and best practices ensures you maximise protection for your home.
Encryption and Data Security
Quality smart locks use strong encryption to protect communication between the lock, your smartphone, and any connected services. Look for locks that use AES-256 encryption or similar industry-standard security protocols.
Data security also involves how manufacturers handle your access logs and personal information. Choose locks from reputable companies with clear privacy policies and strong track records for security updates.
Physical Security
Smart locks should maintain or improve upon the physical security of traditional deadbolts. Look for locks with reinforced strike plates, tamper alerts, and robust construction that resists drilling, bumping, or other physical attack methods.
Many smart locks include features like tamper alarms that sound when someone attempts to force the lock, and some can send instant notifications to your phone when tampering is detected.
Backup Access Methods
Reliable backup access prevents lockouts during technology failures, dead batteries, or connectivity issues. The best smart locks include multiple backup options such as physical key access, external battery terminals for emergency power, or alternative wireless protocols.
Consider how backup access methods fit your lifestyle and ensure all family members understand how to use backup options in emergency situations.
Network Security
Smart locks connected to your home Wi-Fi network should use secure communication protocols and receive regular firmware updates to address newly discovered vulnerabilities.
Best practices include keeping your smart lock firmware updated, using strong Wi-Fi passwords, considering a separate IoT network for smart home devices, and monitoring access logs regularly for unusual activity.
Smart Home Integration and Automation
Smart locks become even more valuable when integrated with other smart home devices and automation systems.
Voice Control Integration
Voice control allows hands-free lock operation, particularly useful when carrying packages or groceries. However, security considerations are important – many systems require spoken confirmation or PIN codes for unlocking via voice commands.
Popular voice assistants including Amazon Alexa, Google Assistant, and Apple Siri can integrate with most major smart lock brands, though specific capabilities vary between platforms and lock models.
Automation Scenarios
Smart locks enable sophisticated home automation scenarios that enhance both security and convenience. Common automation examples include automatically turning on lights when the door is unlocked after dark, adjusting thermostat settings when the last person leaves home, and activating security cameras when the door is opened during specified times.
Geofencing capabilities can automatically lock your door when you leave the area or unlock it as you approach, creating seamless entry and exit experiences without manual intervention.
Security System Integration
Integration with professional security systems or DIY security platforms provides comprehensive home protection. Smart locks can automatically arm or disarm security systems, trigger cameras to record when accessed, and provide security companies with real-time access information.
This integration proves particularly valuable for monitoring vacation homes, rental properties, or any situation where remote security management is important.
Cost Analysis and Value Proposition
Understanding the total cost of smart lock ownership helps make informed decisions about features and installation options.
Initial Purchase Costs
Smart locks range from around $100 for basic models to $400+ for premium systems with comprehensive features. Adapter-style locks generally cost less than full replacement systems, while specialized features like biometric access or premium construction increase prices.
Factor in potential installation costs if professional installation is required, which typically ranges from $50-150 depending on complexity and local labor rates.
Ongoing Costs
Most smart locks have minimal ongoing costs, primarily battery replacement every 6-12 months. Some cloud-connected features or advanced security monitoring may require subscription fees, though many essential features work without subscriptions.
Consider the cost of backup keys, replacement parts, or potential upgrades when calculating long-term ownership costs.
Value and Savings
Smart locks provide value through enhanced security, convenience, and potentially lower insurance costs. Some insurance companies offer discounts for homes with smart security devices, though savings vary by provider and policy.
The convenience value of never worrying about lost keys, the ability to provide temporary access without physical key exchange, and enhanced security monitoring often justify the investment for most homeowners.
Maintenance and Troubleshooting
Proper maintenance ensures reliable smart lock operation and extends device lifespan.
Regular Maintenance Tasks
Basic maintenance includes keeping the lock mechanism clean and lubricated, checking battery levels regularly, and ensuring proper door alignment to prevent binding or excessive wear.
Software maintenance involves installing firmware updates promptly, reviewing and cleaning access logs periodically, and testing backup access methods regularly to ensure they work when needed.
Common Issues and Solutions
Common smart lock issues include connectivity problems, battery drain, mechanical binding, and smartphone app synchronisation issues. Many problems can be resolved through basic troubleshooting like power cycling, checking network connectivity, or recalibrating the lock mechanism.
Understanding basic troubleshooting steps reduces frustration and ensures continued reliable operation. Most manufacturers provide comprehensive support resources and responsive customer service for more complex issues.
When to Seek Professional Help
Professional assistance may be necessary for complex installation issues, persistent connectivity problems, or mechanical problems that affect lock security or operation.
Signs that professional help is needed include doors that don't close properly after installation, locks that frequently jam or bind, persistent connectivity issues despite troubleshooting, or any situation where lock security might be compromised.
Future of Smart Lock Technology
Smart lock technology continues evolving rapidly, with new features and capabilities appearing regularly.
Emerging Technologies
Also announced is the Nuki Smart - Smart Lock Pro will also have additional enhancements such as faster charging, a lithium polymer battery, a premium Universal Cylinder and easy 15 minute DIY installation.
Emerging technologies include improved battery technology for longer life, enhanced biometric recognition systems, advanced AI for behavioral pattern recognition, and improved weather resistance for harsh climates.
Matter and Thread support is becoming standard, ensuring better interoperability between different smart home platforms and devices. This standardisation will make smart locks more versatile and future-proof. (See our earlier articles on Matter & Thread).
Integration Trends
Future smart locks will likely integrate more deeply with comprehensive smart home ecosystems, offering seamless operation with security systems, energy management, and lifestyle automation.
Enhanced AI capabilities may enable locks to learn usage patterns and automatically adjust settings for optimal security and convenience, while improved connectivity options will ensure reliable operation regardless of home network conditions.
Making Your Smart Lock Decision
Choosing the right smart lock involves balancing your specific needs, budget, and technical comfort level.
Assessing Your Needs
Start by identifying your primary motivations for upgrading to a smart lock. Are you primarily seeking convenience, enhanced security, remote access capabilities, or integration with existing smart home systems? Your priorities will guide feature selection and budget allocation.
Consider your household's usage patterns, technical sophistication, and any special requirements like accessibility needs or rental property considerations.
Budget Planning
Factor in both initial costs and potential ongoing expenses when budgeting for a smart lock. While premium locks offer more features, many mid-range options provide excellent value and reliability for typical home use.
Consider whether DIY installation is feasible for your situation, or if professional installation costs should be included in your budget planning.
Technical Considerations
Honestly assess your technical comfort level and available time for setup and maintenance. Some smart locks offer plug-and-play simplicity, while others require more technical knowledge for optimal configuration.
Consider your existing smart home ecosystem and ensure your chosen lock will integrate well with current devices and platforms.
Conclusion
Smart locks represent one of the most practical and immediately beneficial smart home investments available today. They solve real everyday problems while enhancing security, providing value that justifies their cost for most homeowners.
August is the top smart lock for 2025, followed by Yale and Schlage. August offers easy installation, great design, and seamless smart home integration.
The key to choosing the right smart lock lies in understanding your specific needs and matching them with appropriate features and capabilities. Whether you prioritise easy installation, comprehensive access options, or advanced security features, there are excellent options available in 2025.
Remember that the best smart lock is one that reliably serves your daily needs while providing the security and peace of mind you expect. Start with your most important requirements, choose a quality lock from a reputable manufacturer, and don't overcomplicate your initial selection with features you may never use.
Smart lock technology will continue evolving, but today's quality options provide years of reliable service and can often be upgraded or integrated with new technologies as they become available. The convenience and security benefits of keyless living make smart locks an investment that pays dividends in daily convenience and peace of mind for years to come.