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Best Smart Locks for iPhone (2026)
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Quick answer: A smart lock lets you lock/unlock from your iPhone, hand out digital keys, and stop wondering if you locked up. For Apple users, get a HomeKit lock (some support Apple home key — tap your iPhone/Watch to unlock). Choose a retrofit lock to keep your existing key, a keypad lock for codes, or a deadbolt replacement for full features. HomeKit support is the iPhone must-have.
🏆 Best for Apple Users — HomeKit Smart Lock
★ BEST FOR iPHONE
HomeKit Smart Lock (Home Key)
Apple HomeTap to unlock
Works in the Apple Home app, and some support Apple home key — just tap your iPhone or Apple Watch to unlock. The pick for Apple households. Lock from bed, grant guest access, and get arrival alerts.
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🔑 Best Retrofit — Keep-Your-Key Smart Lock
★ EASIEST INSTALL
Retrofit Smart Lock
Keeps existing key
Mounts over your existing deadbolt's interior side — you keep your current keys and exterior look while adding app control. The pick for renters and easy installs. No locksmith needed.
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🔢 Best with Keypad — Code-Entry Smart Lock
★ FOR CODES
Keypad Smart Lock
Guest codes
A keypad lets family, guests, and cleaners in with codes — no phone needed for them. The pick for households with frequent visitors or rentals. Manage codes from your iPhone. Great for Airbnb hosts.
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👆 Best Premium — Fingerprint Smart Lock
Fingerprint Smart Lock
Touch to enter
Adds fingerprint entry alongside app and code access for the fastest, key-free unlocking. The pick for a premium front-door experience. Family members in with a touch, you control it all from iPhone.
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Pro tip — measure your door and deadbolt before buying; fit isn't universal.
Smart locks need to match your door thickness, backset, and existing deadbolt type. Retrofit models are the most forgiving (they keep your hardware). Before ordering, check the lock's compatibility guide against your door — the #1 smart-lock return reason is a fit mismatch. And confirm HomeKit support for iPhone control.
📦 iPhone Home App or Bluetooth Trouble?
If your iPhone won't control smart-home devices, it could be a software or hardware issue. We offer mail-in diagnosis.
→ Mail-In iPhone Repair