The Ultimate Guide to Finding the Best Smart Locks for Your Home in 2025
Imagine never fumbling for your keys again—whether your hands are full of groceries, you’re rushing out the door, or you need to let a dog walker in while you’re at work. Smart locks have transformed home security, blending convenience with cutting-edge technology. But with dozens of models on the market, how do you choose the best smart locks for your specific needs? In this comprehensive home improvement guide, we’ll break down everything you need to know, from key features to top-rated picks, so you can lock in peace of mind.
Why Upgrade to a Smart Lock?
Before diving into recommendations, let’s explore why smart locks are a game-changer for modern homes. Beyond the obvious convenience of keyless entry, the best smart locks offer:
- Remote access: Lock or unlock your door from anywhere via a smartphone app.
- Guest access codes: Create temporary or permanent codes for family, friends, or service providers.
- Integration with smart home systems: Work seamlessly with Amazon Alexa, Google Assistant, Apple HomeKit, or Samsung SmartThings.
- Activity logs: See who came and went, and at what time.
- Enhanced security: Features like auto-lock, tamper alerts, and encryption protect against break-ins.
Whether you’re a tech enthusiast or a homeowner looking for simple upgrades, investing in one of the best smart locks can boost both security and daily convenience.
Buying Guide: What to Look for in the Best Smart Locks
Choosing the right smart lock isn’t one-size-fits-all. Here’s a detailed checklist to help you decide:
1. Compatibility with Your Door
Most smart locks fit standard US doors (1-3/8 to 1-3/4 inches thick) with a standard deadbolt hole. But double-check your door’s preparation—some models require additional drilling or a specific backset (2-3/8 or 2-3/4 inches). If you have a smart lock with a keypad, ensure it aligns with your door’s handedness (left- or right-opening).
2. Connectivity: Wi-Fi, Bluetooth, or Z-Wave?
- Wi-Fi locks (e.g., August Wi-Fi Smart Lock) connect directly to your home network, allowing remote control without a hub. They’re the most convenient but can drain batteries faster.
- Bluetooth locks (e.g., Schlage Encode) work within a short range and often need a separate bridge for remote access.
- Z-Wave or Zigbee locks (e.g., Yale Assure Lock 2) require a smart home hub but offer excellent reliability and low power consumption.
For most users, a Wi-Fi-enabled lock offers the best balance of ease and functionality.
3. Security Features
The best smart locks include:
- Encryption: Look for AES-128 or higher to prevent hacking.
- Physical key override: A traditional key backup ensures you’re never locked out if the battery dies.
- Auto-lock and auto-unlock: Automatically secures the door after you leave, and unlocks when you arrive (using geofencing).
- Tamper alarms: Alerts you if someone tries to force the lock.
4. Smart Home Integration
If you already use Amazon Alexa, Google Assistant, or Apple HomeKit, choose a lock that integrates natively. For example, the best smart locks for Apple users often support HomeKey, letting you unlock with your iPhone or Apple Watch.
5. Power Source and Battery Life
Most smart locks run on 4 AA batteries (lithium recommended) lasting 6–12 months. Some models (like the August Wi-Fi Smart Lock) offer low-battery alerts via the app. Avoid locks with proprietary batteries—replaceable AA or CR123A cells are easier to find.
6. Installation Difficulty
Many best smart locks are designed for DIY installation in 15–30 minutes using just a screwdriver. However, if you’re not handy, consider professional installation, especially for models that replace your entire deadbolt (like the Schlage Encode Plus).
Top 5 Best Smart Locks in 2025
Based on extensive testing, user reviews, and expert analysis, here are our top recommendations:
1. August Wi-Fi Smart Lock (4th Gen)
Best for: Renters and those who want to keep existing hardware.
The August Wi-Fi Smart Lock mounts over your existing deadbolt, so you don’t need to change your keys or exterior look. It offers easy installation, works with Alexa, Google, and HomeKit, and features DoorSense to confirm the door is closed. The app is intuitive, and auto-unlock works reliably. Battery life averages 6 months.
Pros: No key replacement needed, compact design, strong app.
Cons: Requires a separate August Connect bridge for remote access (included with 4th Gen).
2. Schlage Encode Plus
Best for: Apple HomeKit users and those wanting a keypad.
The Schlage Encode Plus is a full deadbolt replacement with a built-in keypad and Wi-Fi. It supports Apple HomeKey, allowing you to unlock with your iPhone or Apple Watch by tapping. It also works with Alexa and Google. Security is top-notch with a built-in alarm and ANSI Grade 1 certification (the highest residential rating).
Pros: HomeKey integration, robust build, no hub needed.
Cons: Slightly larger footprint, higher price point.
3. Yale Assure Lock 2 (Wi-Fi)
Best for: Versatility and smart home flexibility.
The Yale Assure Lock 2 is modular—you can swap between keypad, touchscreen, or fingerprint reader modules. It connects via Wi-Fi (no hub) and works with Alexa, Google, and HomeKit (with additional module). The sleek design fits modern homes, and the app offers easy code management.
Pros: Modular design, multiple access methods, good battery life (8–10 months).
Cons: No physical key backup (unless you buy the keyed module separately).
4. Ultraloq U-Bolt Pro Wi-Fi
Best for: Biometric entry and budget-conscious buyers.
This lock offers six ways to unlock: fingerprint, keypad, app, voice control, auto-unlock, and physical key. The fingerprint sensor is fast and accurate. It’s Wi-Fi enabled, works with Alexa and Google, and includes a built-in alarm. At under $150, it’s one of the best smart locks for value.
Pros: Fingerprint option, affordable, multiple unlocking methods.
Cons: Fingerprint sensor can be finicky with wet fingers, slightly bulkier design.
5. Level Lock+
Best for: Minimalist design and hidden technology.
The Level Lock+ is nearly invisible—it fits inside your door and uses your existing deadbolt and key. It supports Apple HomeKey, NFC, and Bluetooth. The exterior looks like a standard lock, but inside, it’s packed with smart features. It’s ideal for those who want security without changing their home’s aesthetic.
Pros: Stealth design, works with existing keys, HomeKey support.
Cons: No built-in keypad (requires phone or Apple Watch), higher price.
Practical Tips for Installing and Using Your Smart Lock
- Check your door alignment: A misaligned door can cause the lock to jam. Ensure your door closes smoothly before installation.
- Use lithium batteries: They last longer in cold weather and provide consistent power.
- Set up guest codes carefully: Create temporary codes for Airbnb guests or contractors, and revoke them after use.
- Enable two-factor authentication:
