smart_locks

Smart Locks Buyer's Guide 2026

Everything you need to know before buying a smart lock: security ratings, protocols, installation types, and our top recommendations.

WiFi Z-Wave Bluetooth Matter

Why Smart Locks?

Smart locks add keyless entry, remote access, guest codes, and activity logging to your home. Whether you want to stop hiding a spare key under the mat or manage access for Airbnb guests, a smart lock is one of the most practical smart home upgrades.

Security Ratings Explained

ANSI/BHMA Grades

Smart locks carry the same security grades as traditional deadbolts:

  • Grade 1: Highest residential security. Withstands 800,000 cycles and 75-pound force resistance. Examples: Schlage Encode Plus.
  • Grade 2: Standard residential. 400,000 cycles and 60-pound force. Examples: August, Yale Assure Lock 2.
  • Grade 3: Basic residential. 200,000 cycles and 40-pound force. Avoid for exterior doors.

Always choose Grade 1 or Grade 2 for your primary entry doors.

Installation Types

Full Replacement

Replaces your entire deadbolt assembly. Requires a standard door prep (2-1/8” bore, 1” edge bore). Provides the best security and feature integration.

Examples: Schlage Encode Plus, Yale Assure Lock 2

Retrofit

Mounts on the interior side of your existing deadbolt. Keeps your existing keys and exterior hardware. Ideal for renters.

Examples: August Wi-Fi Smart Lock, Level Lock+, SwitchBot Lock

Choosing a Protocol

WiFi

Direct connection to your home network. Remote access without a hub. Trade-off: higher battery consumption.

Best for: Users who want remote access without additional hardware.

Z-Wave

Local mesh networking through a hub. Excellent range through Z-Wave repeaters. Low power consumption.

Best for: Home Assistant and SmartThings users with existing Z-Wave networks.

Bluetooth

Short-range, direct phone-to-lock communication. Lowest power consumption but requires proximity for control.

Best for: Basic keyless entry without remote access needs.

Matter/Thread

The newest protocol offering local control and cross-platform compatibility. Growing support from major manufacturers.

Best for: Future-proofing and multi-platform households.

Key Features to Look For

  1. Auto-lock — Automatically locks after a set time
  2. Auto-unlock — Uses phone GPS to unlock as you approach
  3. Guest codes — Temporary or scheduled access codes for visitors
  4. Activity log — Track who locked/unlocked and when
  5. Physical key backup — Manual override if batteries die

Our Recommendations

Check our Best Smart Locks comparison for the latest sentiment-ranked picks.