What Smart Locks Can Do
Smart locks offer several features that traditional locks cannot match.
- Remote locking and unlocking: Lock or unlock your door from anywhere using your phone — useful when you forget to lock up or need to let someone in while you are away
- Keypad entry: Enter a PIN code instead of using a key — no more fumbling for keys with grocery bags in your hands
- Temporary access codes: Create a unique code for a housecleaner, contractor, or guest that works only on specific days and times, then expires automatically
- Auto-lock: Set the lock to automatically lock itself after a set time (5 minutes, 30 minutes, etc.)
- Activity log: See a history of who locked and unlocked the door and when
- Low battery alerts: Get notified on your phone when the battery is getting low
- Voice control: "Alexa, lock the front door" or "Hey Google, is the front door locked?"
Types of Smart Locks
Smart locks come in several configurations. Understanding the differences helps you choose the right one for your door.
- Deadbolt replacement: Replaces your existing deadbolt entirely. Fits most standard door preparations. The most common type.
- Deadbolt retrofit: Attaches to the inside of your existing deadbolt without replacing the exterior hardware. Keeps your existing keys working. Good if you like your current exterior hardware.
- Lever handle locks: Replaces the entire door handle and lock in one unit. Common on interior doors and some exterior doors.
- Padlocks: Smart padlocks for gates, sheds, and storage units. Battery-powered and controlled by app or keypad.
Connectivity: Wi-Fi vs. Bluetooth vs. Z-Wave
Smart locks connect to your phone in different ways, and this affects how they work.
- Wi-Fi: Connects directly to your home Wi-Fi network. You can control it from anywhere without any additional hardware. The trade-off is higher battery drain.
- Bluetooth: Connects directly to your phone when you are nearby (within about 30 feet). Very battery-efficient, but you cannot control it remotely unless you add a hub or bridge.
- Z-Wave or Zigbee: Requires a compatible smart home hub (like SmartThings or a Ring Alarm base station). Offers the best range and battery life, and integrates well with whole-home automation systems.
- Combination: Many modern smart locks offer both Bluetooth (for local control) and Wi-Fi or a bridge (for remote access).
Tip: If you want to lock and unlock your door from work or while traveling, make sure the lock you choose supports remote access — either through built-in Wi-Fi or a compatible hub.
Popular Smart Lock Brands
These are the brands homeowners ask us about most often.
- Schlage Encode: Built-in Wi-Fi, no hub required, excellent build quality, works with Alexa and Google Home. One of the most popular choices for homeowners who want reliable remote access.
- August Smart Lock: A retrofit design that attaches to your existing deadbolt from the inside. Keeps your existing exterior hardware and keys. Works with Alexa, Google Home, and Apple HomeKit.
- Yale Assure: Clean, modern design with a keypad. Available in Wi-Fi and Z-Wave versions. Works with Alexa, Google Home, and Apple HomeKit.
- Kwikset Halo: Affordable Wi-Fi smart lock with a keypad. Good choice for homeowners who want remote access without a large investment.
- Level Lock: Completely hidden inside the door — looks like a regular lock from the outside. Uses Bluetooth and works with Apple HomeKit.
Installing a Smart Lock
Most smart locks are designed for DIY installation and include all the tools you need. The process typically takes 20 to 30 minutes.
- 1Remove your existing deadbolt by unscrewing the interior and exterior hardware
- 2Install the new smart lock according to the included instructions — most use the same door preparation as a standard deadbolt
- 3Install batteries (most smart locks use AA batteries)
- 4Download the lock's app and follow the setup wizard to connect the lock to your Wi-Fi or phone
- 5Test the lock by locking and unlocking it from the app
- 6Set up your access codes and any automations you want
Tip: Before buying a smart lock, measure your door thickness and check the backset measurement (the distance from the edge of the door to the center of the hole). Most smart locks fit standard door preparations, but it is worth confirming before you buy.
Are Smart Locks Secure?
Security is the most common concern homeowners have about smart locks. Here is what you should know.
- Physical security: Most smart locks from reputable brands are ANSI Grade 1 or Grade 2 certified, which is the same standard as high-quality traditional deadbolts. The physical lock is as strong as a conventional deadbolt.
- Digital security: Use a strong, unique password for your lock account and enable two-factor authentication. Keep the lock firmware updated.
- Battery backup: Smart locks run on batteries. If the battery dies, you can still use a physical key (most smart locks include a key cylinder as a backup) or a 9-volt battery held against the terminals to temporarily power the lock.
- Power outage: Smart locks work during a power outage because they run on batteries, not your home's electrical system.