What is the best smart door lock in 2026?

Schlage Encode Plus is our top pick — built-in Wi-Fi, HomeKit with Home Key NFC, 100 codes, and Grade 1 security at $250. Best for renters or no-exterior-change installation: August 4th Gen retrofit at $150. Best fingerprint unlock: Yale Assure Lock 2 at $280.

Are smart locks safe?

Smart locks with ANSI Grade 1 certification (Schlage, Yale) are as physically secure as traditional deadbolts. The digital attack surface (code guessing, Bluetooth interception) is defended by lockout modes after failed attempts and encrypted connections. The biggest vulnerability is poor password hygiene — use unique, non-sequential codes and change them if shared.

Can smart locks work without Wi-Fi?

Yes — Bluetooth and keypad-based smart locks work without internet connectivity. Z-Wave and Zigbee locks require a local hub (SmartThings, Hubitat) that works locally without internet. Only Wi-Fi locks that require cloud servers fail without internet. For critical security applications, local operation capability is important — always verify your lock works without internet before relying on it.

Best Smart Door Locks in 2026

Smart door locks eliminate the need for physical keys — unlocking via keypad code, smartphone Bluetooth, fingerprint, or voice command. In 2026 the best models work without an internet connection for local unlocking (critical for reliability), send smartphone notifications when the door is unlocked, and integrate with Alexa, Google, and Apple HomeKit for voice access control.

We evaluated lock security rating, installation ease (deadbolt replacement vs. full rekeying), connectivity (Bluetooth, Z-Wave, Wi-Fi, Matter), and smart home integration across these four picks.

What to Look For

ANSI/BHMA security grade: Grade 1 is the highest residential security rating — required for front door locks. Grade 2 is for interior doors. Grade 3 is the lowest — avoid for exterior use. Schlage and Kwikset both offer Grade 1.
Installation: Most smart locks replace only the interior portion of an existing deadbolt — preserving the exterior appearance. Full replacement locks change everything including the key cylinder. Retrofit locks (August) slide onto the existing deadbolt from inside — the easiest installation (10 minutes).
Connectivity: Bluetooth: works locally without internet, low battery drain. Z-Wave/Zigbee: requires a hub but provides reliable smart home integration. Wi-Fi: works from anywhere with internet but drains battery 2–3x faster. Matter: future-proof universal standard.
Backup access: Always ensure the smart lock includes physical key backup — smart locks fail (dead battery, connectivity issue). Key access is the fail-safe.
Auto-lock: Automatically locks after a set interval (1–30 minutes). Essential for security — eliminates the "did I lock the door" concern.

Our Top Picks

Best Overall

Schlage Encode Plus Smart WiFi Deadbolt

Built-in Wi-Fi (no hub required), Apple HomeKit with Home Key (tap iPhone to unlock), 100 access codes, auto-lock, alarm technology for attack detection, ANSI Grade 1 security, and Schlage's industry-leading build quality. Best smart lock for Apple HomeKit users — NFC Home Key is the most seamless unlocking experience.

~$250 View on Amazon →

Best Value

Kwikset 99590-001 SmartCode 955 Touchpad Deadbolt

Touchpad keypad, 30 user codes, auto-lock, ANSI Grade 2, Z-Wave Plus for SmartThings/Alexa/Google, SecureScreen illumination, and physical key backup. Best budget smart lock — keypad-only operation without requiring a smartphone app for daily use.

~$130 View on Amazon →

Best Retrofit

August Wi-Fi Smart Lock (4th Gen)

Retrofit installation in 10 minutes over existing deadbolt, built-in Wi-Fi, auto-lock and auto-unlock via geofencing, DoorSense door position sensor, Alexa/Google/HomeKit, and no exterior change (keeps your existing keys). Best for renters and anyone who doesn't want to replace the exterior hardware or re-key.

~$150 View on Amazon →

Best Fingerprint

Yale Assure Lock 2 Fingerprint

Fingerprint sensor, touchscreen keypad, Bluetooth and optional Wi-Fi module, 250 user codes, ANSI Grade 1 security, Alexa and Google compatible, and Matter support for future-proof integration. Best smart lock with fingerprint — unlocking with a fingerprint is faster than any code or phone interaction.

~$280 View on Amazon →

Bottom line: Schlage Encode Plus is the best smart lock for Apple HomeKit with Home Key NFC tap unlocking and Grade 1 security at $250. Best retrofit: August 4th Gen at $150 installs in 10 minutes over existing hardware. Best fingerprint: Yale Assure Lock 2 at $280.