The 8 Best Smart Locks of 2021

Get easier access to your home with these safe picks

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Securing your home is obviously important, but it can also be a tedious process. Fumbling around for your keys while juggling groceries or other packages is not only inconvenient but might also result in accidents. And then there’s the worry that you or your family members and friends will lose their set of keys, jeopardizing the safety of your home. In addition, there may be people, like housekeepers, dog walkers, and the like, who need temporary access, but you don’t really want them walking around with the keys to your home.

A smart lock provides a variety of options for locking and unlocking your door, including voice activation, keypads with specific codes, and fingerprint access.

Here, the best smart locks to meet your particular needs.

Our Top Picks
Easy to install, this lock works with your existing deadbolt and key lock and can be unlocked by key, app, and voice assistant.
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You can program up to 250 different codes or even create a schedule of when the codes are enabled.
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Featuring one-touch locking, this lock also works remotely with your phone and shows you who has opened or closed the door.
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Best for Apartments:
Wyze Smart Door Lock at Amazon
The lock works with your existing deadbolt and can conveniently unlock as you approach the door.
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This strong lock includes an alarm that alerts you when someone tries to breach it and includes an activity log.
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This keypad has spaced-out numbers, so it is easier to use and has a 360-degree live fingerprint ID feature.
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With multiple ways to operate, this lock supports over 200 fingerprints, 150 passcodes, and 200 key fobs.
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Featuring one-touch fingerprint access, this lock is waterproof and includes two physical keys and remote access through an app.
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Best Overall: August Wi-Fi Smart Lock

August Wi-Fi, (4th Generation)

Dimensions: 2.8 x 2.75 x 2.8 inches | Smart Home Compatible: Yes | Locking Mechanism: App | Lock Type: Connects to an existing deadbolt

What We Like
  • Compatible with your existing deadbolt and key lock

  • Streamlined appearance

What We Don't Like
  • Setup might prove to be difficult

The August Wi-Fi-Smart Lock is convenient to use and easy to install. Because it works with your existing deadbolt and key lock, you won't have to buy a whole new system—and for added convenience, it's also compatible with most single-cylinder deadlocks. The auto-lock/unlock function can use your phone’s location to unlock the door when you’re close to it (helpful for when your hands are full), and re-lock the door after a specified amount of time has passed—or immediately after you close it.

In addition, you can choose to lock the door manually or control it with Siri, Alexa, or Google Assistant. For added security when operating the lock remotely, you have the option of adding your smartphone’s fingerprint or facial recognition features—and using the August app, you can issue secure virtual keys via your smartphone to friends, family members, and other people who need access, and then cancel access when it’s no longer needed. The lock doesn’t need an additional bridge to connect to Wi-FI.

The August Wi-Fi-Smart Lock also has a smart and attractive look, and it doesn’t take up a lot of real estate on your door. It’s available in either Silver or Matte Black, and there’s also an option to add a keypad.

Best Budget: Kwikset Aura with SmartKey Security

Kwikset 99420-001 Aura Bluetooth Programmable Keypad Door Lock

Dimensions: 3.99 x 4.24 x 9.74 inches | Smart Home Compatible: No | Locking Mechanism: App or keypad | Lock Type: Deadbolt

What We Like
  • Relatively affordable

  • Easy to install

What We Don't Like
  • No smart home integration

If you’re looking for a good smart lock that won’t break the bank, the Kwikset Aura offers a lot of features at a great price. Using the Kwikset App, you can use Bluetooth to operate it from your smartphone to both lock and unlock the deadbolt. There’s also an auto-lock feature to activate the lock 30 seconds after the door has been closed. The Kwikset allows you to program up to 250 different codes and even create a schedule to determine when those codes are enabled. In addition, the app provides notifications so you can see current lock activity.

Best Splurge: Nest x Yale Lock with Nest Connect

Nest x Yale Lock

Dimensions: Front: 2.59 x 0.80 x 4.59 inches, Back: 2.78 x 2.02 x 7.03 | Smart Home Compatible: Yes | Locking Mechanism: App or keypad | Lock Type: Deadbolt

What We Like
  • Sleek appearance

  • Can create both temporary and permanent passcodes

  • Compatible with Google Nest

What We Don't Like
  • Expensive

It’s pricey, but the Nest x Yale Lock with Nest Connect is a good-looking lock that combines Nest technology with Yale durability using the Nest app. And if you already have a Nest Connect hub or Nest Secure security system, you’ll only need to purchase the lock, which would be approximately $150 less. It also works with Google Assistant. The lock is easy to install and features one-touch locking. You can also lock and unlock the door remotely using your phone and view the timeline showing who opened or closed the door—and when. In addition, temporary or permanent passcodes can be created for family members or friends.

Best for Apartments: Wyze Smart Door Lock

WYZE Lock WiFi & Bluetooth Enabled Smart Door Lock

Dimensions: 2.5 x 2 x 4.9 inches | Smart Home Compatible: Yes | Locking Mechanism: App | Lock Type: Connects to an existing deadbolt

What We Like
  • Easy to install

  • Affordable

What We Don't Like
  • Doesn't work with smart home systems

Just because you don’t own your home doesn’t mean you can’t enjoy the convenience of a smart lock. The Wyze Smart Door Lock works with most single-cylinder deadbolt locks, so you won’t get in trouble for trying to change out the locks and keys. The auto-unlock function is enabled when you approach the door, and it will lock itself after you get into your home. In addition, the built-in gyroscope lets you know if the door is ajar. The Wyze app also lets you assign codes to friends and family members and lets you view who has locked or unlocked the door. The lock can also be used with Alexa.

Best Deadbolt: Schlage Encode Deadbolt Smart Lock

Schlage Encode Deadbolt Smart Lock

Dimensions: 3 x 0.89 x 5 inches | Smart Home Compatible: Yes | Locking Mechanism: App, keypad, or key | Lock Type: Deadbolt

What We Like
  • Easy to install

  • Can be operated by a key

  • Compatible with Alexa and Google Assistant

What We Don't Like
  • Could use longer auto lock intervals

A sturdy deadbolt is essential if you have serious concerns that someone could break into your home. Schlage is known for its strong deadbolt locks, and the metal construction on this smart model is no exception. However, the Schlage Encode also includes an alarm to alert you (and is probably loud enough to alert the neighbors) if someone tries to breach the lock. It’s easy to install and can be operated by a key, touchscreen number pad, and remotely from your smartphone. The smart lock also works with Alexa and Google Assistant. It generates up to 100 codes and has an activity log. You can also use the Amazon Key App to allow delivery drivers to access your home if you don’t want your packages to be left outside.

Best with Touchpad: Ultraloq U-Bolt Pro Smart Lock

Ultraloq U-Bolt Pro Smart Lock

Dimensions: 2.95 x 1.22 x 2.95 inches | Smart Home Compatible: Yes | Locking Mechanism: App, keypad, or fingerprint | Lock Type: Deadbolt

What We Like
  • Finger reader is ideal for children

  • Weather and dust-proof lock

What We Don't Like
  • Requires an extra WiFi bridge to integrate with smart home systems

For people who want a keypad function but may have difficulty entering numbers on a regular device, the Ultraloq U-Bolt Pro Smart Lock spaces the numbers out, making it easier to differentiate between them so you can avoid making the wrong selection. There’s also a 360-degree live fingerprint ID feature, which works from any angle. In addition, there’s a manual key option, auto-lock, and remote smartphone access. The Ultraloq app lets you manage other users and view the activity log.

This lock is easy to install and rated dust and weatherproof. While it does require an extra WiFi Bridge to use certain features (including the remote-control function), the company also makes a latch version that includes the WiFi Bridge.

Best for Airbnb: Sifely Keyless Entry Door Lock

Sifely Keyless Entry Door Lock

Dimensions: 3 x 1.12 x 7 inches | Smart Home Compatible: No | Locking Mechanism: App, keypad, or fingerprint | Lock Type: Deadbolt

What We Like
  • Multiple ways to operate the lock

  • Durable sensor

  • Can generate passcode(s) remotely

What We Don't Like
  • Not super high security

If you rent out your property, consider the Sifely Keyless Entry Door Lock. It’s easy to install and includes multiple ways to operate the lock, including fingerprint, passcode, fob, or smartphone app. There are also 2 physical keys. The sensor resists dust, scratches, and water to ensure smooth operation in any environment. The lock can support over 200 fingerprints, 150 passcodes, and 200 key fobs. You can generate five types of passcodes (permanent, timed, one-time, cyclic, and custom) and both the codes and fobs can be controlled via your smartphone using the Sifely app. You can also track and cancel fob access.

Best with Fingerprint: Securam Touch Smart Deadbolt Lock

SECURAM Touch Smart Lock Deadbolt

Dimensions: 6.54 x 5.59 x 7.05 | Smart Home Compatible: With hub only | Locking Mechanism: App, keypad, key, or fingerprint | Lock Type: Deadbolt

What We Like
  • Easy to install and program

  • Sleek appearance

What We Don't Like
  • Requires a smart hub for certain features

The Securam Touch Smart Deadbolt Lock is a sleek option that updates the look of your door as well as your lock. It’s waterproof and provides one-touch fingerprint access on the spacious section at the top. However, the lock also includes two physical keys, remote access using the Securam app, or it can be voiced-controlled using Alexa. The Securam Touch Smart Lock has an automatic relock option that can be set for a specific time. There’s also a spy-proof code entry option that can be used when someone is standing behind you as you enter your code. Up to 30 codes can be given to family members and friends, and you can view any lock activity in real-time. The Smart Hub is required for remote and voice control, one-time codes, and integration with Alexa. 

Final Verdict

The best overall smart lock is the August Wi-Fi-Smart Lock (view at Amazon). It’s easy to use and install, and it works with your existing deadbolt and your existing Wi-Fi, so you don’t need to make any additional purchases. If you prefer an alarm on your smart lock, the Schlage Encode Deadbolt Smart Lock (view at Amazon) has a loud one. It also includes several ways to access the lock, in addition to the Amazon Key App for delivery drivers.

What to Look for in a Smart Lock


Most smart locks are easy to install and usually require only a screwdriver. Some smart locks work with your existing deadbolt, while others include a deadbolt and new keys. If you’re renting, you might have to rule out a model that doesn't work with your existing deadbolt.


If your door is exposed to the elements, you’ll want a smart door lock that is waterproof and can handle temperature extremes. Certain types of smart locks are notorious for being iffy when the temperature dips too low, so this is important to keep in mind. Also, if there are going to be a lot of people accessing the lock, make sure that it's durable enough to withstand frequent traffic.


How you plan to use the smart lock can also determine the best one for your purpose. For example, a fingerprint feature is ultra-cool, but if you have small kids and older parents, will they be able to provide a sufficient biometric fingerprint?

For keypads, some people may struggle to key within the lines, which could result in them pressing “2” when they’re trying to press “3." If that's the case, you may want to opt for a keypad that spaces out the numbers.

If you prefer to unlock the door for kids, family members, etc., remotely, make sure you’ll be in a location with a strong enough signal. And if you plan to unlock the door at certain times, for example, 3 p.m. each weekday when your kids get out of school, one concern with creating a consistent routine is that it may catch the attention of would-be criminals.


Another consideration is how the smart lock integrates with your smart-home platforms, including Google Nest and Amazon Alexa. This might allow you to operate the lock with your voice, or get notifications from your smart home systems about any doorstep activity.

Why Trust The Spruce?

Terri Williams is a lifestyle writer who has tested and written about hundreds of products for Tom's Guide,, Bob Vila, Apartment Therapy, and more. With 10+ years of experience in journalism, her areas of expertise include real estate, home improvement, home décor, and home products. She read dozens of customer and third-party reviews to determine the best picks for this roundup, considering the safety, durability, and affordability of each smart lock.

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