Smart Lock Selection Criteria
A smart lock is the single most consequential smart home device you can buy — it controls physical access to your home. We evaluated eight popular models across five criteria: physical security (resistance to picking, bumping, and forced entry), digital security (encryption, authentication, vulnerability to hacking), reliability (battery life, offline operation, mechanical backup), smart home integration (platform compatibility, automation support), and daily usability (speed, noise, guest access management).
Best Overall: Schlage Encode Plus (2nd Gen)
The second-generation Encode Plus combines a Grade 1 ANSI security rating (the highest residential grade) with native Matter support, Apple Home Key, and built-in WiFi. The fingerprint sensor is fast and reliable (under 0.5 seconds), and the keypad works even when the WiFi is down. Battery life reaches 12 months on four AA batteries, and the mechanical key backup ensures you are never locked out. The Schlage Home app is clean and intuitive, with robust guest access management including scheduled access windows.
Best for Apple Users: Level Lock+
If you are deep in the Apple ecosystem, the Level Lock+ offers the most seamless integration. Apple Home Key lets you unlock with your iPhone or Apple Watch by simply tapping — no app required. The lock itself is nearly invisible from the outside (it replaces your existing deadbolt internals), preserving your door's aesthetic. The trade-off is no keypad — you rely entirely on your phone, watch, or physical key.
Best Budget: Wyze Lock Pro
At $129, the Wyze Lock Pro delivers 90% of the features of locks twice its price. The fingerprint reader, keypad, and app control all work reliably. The built-in door sensor alerts you if the door is left ajar. The main compromises are a Grade 2 security rating (adequate for most homes but not the highest) and a slightly louder motor.
Best for Renters: August Wi-Fi Smart Lock (4th Gen)
The August lock replaces only the interior thumb turn, leaving the exterior hardware untouched — perfect for renters who cannot modify their door. Installation takes 10 minutes with a screwdriver. The DoorSense feature tells you whether the door is actually closed, not just locked. The built-in WiFi eliminates the need for a separate bridge.
Security Checklist Before You Buy
- Look for ANSI Grade 1 or 2 rating (Grade 3 is insufficient for exterior doors)
- Verify mechanical key backup exists — never rely solely on electronics
- Check battery life claims against real-world reviews (manufacturer claims are often optimistic)
- Ensure the lock supports offline operation in case of internet outage
- Verify Matter or your preferred platform support before purchasing