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Best Smart Locks

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Smart locks split into two camps: retrofit locks that attach over your existing deadbolt, and full-replacement locks that swap in a new keypad deadbolt entirely. We picked strong options in both categories, since the right choice depends heavily on whether you're a renter or a homeowner.

We also weighed remote-access requirements, since some locks need an extra bridge accessory to unlock over the internet rather than just Bluetooth range.

How we picked: We prioritized locks with a strong reliability reputation, physical key backups (no lock with zero fallback entry method made the list), and clear documentation of whether remote access requires extra hardware.

August Wi-Fi Smart Lock (4th Gen)

Best renter-friendly retrofit lock

  • Installs over your existing deadbolt, keeping your original keys as backup
  • Built-in Wi-Fi for remote lock/unlock with no separate bridge needed
  • Auto-lock and auto-unlock based on your phone's location

Con: Doesn't add a keypad by itself — you'll need the optional August Keypad accessory for code-based entry.

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Schlage Encode Plus

Best full-replacement keypad lock

  • Built-in Wi-Fi for remote access with no bridge required
  • Supports Apple Home Key for tap-to-unlock with an iPhone or Apple Watch
  • Sturdy, well-reviewed build quality from an established lock brand

Con: More expensive than the standard Schlage Encode, and full-replacement installation is a bigger job than a retrofit lock.

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Schlage Encode WiFi Deadbolt

Best value full-replacement lock

  • Built-in Wi-Fi for remote access without a separate bridge
  • Keypad supports up to 30 user codes
  • Reliable brand reputation for deadbolt hardware and durability

Con: No Apple Home Key support — you'll need the pricier Encode Plus for that feature.

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Yale Assure Lock 2

Best modular connectivity options

  • Swappable Wi-Fi, Z-Wave, or Matter modules let you choose your connectivity later
  • Clean, minimal keypad design available in several finishes
  • Solid app with straightforward guest code management

Con: Base model doesn't include Wi-Fi — you need to buy the correct connectivity module separately.

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Level Lock+

Best for a lock that doesn't look 'smart'

  • Fits inside the deadbolt itself — looks like a normal lock from outside
  • Supports Apple Home Key for tap-to-unlock
  • Works with a standard physical key alongside app and Bluetooth unlock

Con: No built-in keypad, and remote access requires the separate Level Connect Wi-Fi Bridge.

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Kwikset Halo Touch

Best fingerprint unlock option

  • Fingerprint sensor for quick keyless entry without a code
  • Built-in Wi-Fi for remote access with no bridge required
  • Backup keypad and physical key in case the fingerprint sensor fails

Con: Fingerprint sensors can struggle in extreme cold or when fingers are wet or dirty.

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Frequently Asked Questions

What happens if a smart lock's battery dies?
Nearly all smart locks warn you well before the battery dies and support a physical key backup, external battery jump-start (a 9V battery touched to contacts on the keypad), or USB backup power, so you're not locked out. Avoid any lock without one of these fallbacks.
Can I install a smart lock myself?
Most retrofit and full-replacement smart locks are designed for DIY installation with a screwdriver in 20-30 minutes, similar to swapping a standard deadbolt. Measure your door thickness and backset first to confirm compatibility.
Do smart locks work during a power or internet outage?
Yes, for local operation — battery-powered locks operate independently of your home's power and don't need internet for keypad or physical key access. Only remote unlock (via app, away from home) requires an internet connection.

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Smart Locks Buying Advice

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Smart Lock Buying Guide