Best smart lock: secure your home with 6 of the top picks

The best smart locks to boost your home security and keep your smart home more connected, from Yale, eufy, August and more

best smart lock: eufy security fingerprint identification lifestyle
(Image credit: eufy)

Smart locks are fast becoming the next big thing in home security, adding complete control over who comes in and out through your smartphone and supplementing existing security features you already have around you home. 

The best smart locks give homeowners the ability to not only keep their properties safe from intruders, but also to grant access to those who need it such as cleaners, babysitters or even Airbnb guests without leaving the home open to unwanted visitors. Of course, it also means that the next time you forget your keys, you won't be locked out!

We've taken a look at some of the best and most popular smart locks available right now, rating their reliability, connectivity and design.

Keep scrolling for honest reviews of our top rated products or, if you need more comprehensive security then check out our guide to the best home security systems.

The best smart locks 2021

best smart lock: Yale Keyless Connected Smart Lock

(Image credit: Yale)

1. Yale Keyless Connected Smart Lock

The best smart lock: it's good for getting tamper alerts, too

Connectivity: Smartphone
Dimensions: 8 x 6.5 x 15cm
Weight: 7.87kg
Reasons to buy
+Good upgrade options +Inbuilt tamper alarm+Affordable option
Reasons to avoid
-Some may not need the smart and manual options-Not the most subtle design

The Yale Keyless Connected Smart Ready Door Lock offers the best of smart lock technology, along with a more traditional keypad lock system. It's also recently won our Real Homes Awards so you know you're onto a winner. Here's everything you need to know about it.

This mirror-finish smart lock looks a little more traditional than many of the other options on this list, which may be a good thing when it comes to deterring would-be sneaks, not to mention the fact that it looks very elegant indeed. 

Tamper alarm
There’s also a tamper alarm for extra peace of mind and easy fitting over your existing night latch, making this a great option whether you’re keeping it simple or bumping up the smart security.  

Smart and manual settings
In a bid to make the most of both manual and smart lock systems, this model allows users to switch between the two with ease.

best smart lock: eufy Security Smart LockReal Homes Rated Gold badge

(Image credit: eufy)

2. eufy Security Smart Lock Touch & Wi-Fi

Best smart lock with fingerprint: a high-tech lock with multiple opening methods

Connectivity: Bluetooth, Alexa, Google Assistant
Dimensions: 15.9 x 7.1 x 2.6cm
Weight: 1.6kg
Reasons to buy
+Sleek design+IP65 waterproof rating+Fingerprint identification+Smart home compatibility
Reasons to avoid
-Installation could be made simpler-Pricey-Unreliable fingerprint identification for children and elders

eufy is known for its reliable and budget-friendly smart home products, and has now added a high-end smart lock to its offerings. The eufy Security Smart Lock Touch gives users several ways to unlock their door - via the smartphone app, the fingerprint sensor or a passcode - adding to peace of mind and security.

Fingerprint sensor

The big selling point of the eufy smart lock is its fingerprint sensor, which works brilliantly once set up. The programming process is the same as for the fingerprint sensor on a smartphone (pressing and lifting your finger several times until it gets a good reading) and, once it knows you, you'll be able to open the lock in double-quick time simply by pressing your finger to the interface.

This is also useful for when you want to view the history of the lock (available through the app), as it knows exactly who has been in and out based on the fingerprint used. Each use can also be given a unique passcode.

Installation and set-up

The only real drawback we found with the smart lock is the tricky installation process. It should be expected given how many things eufy's product allows you to do but, despite the detailed instructions provided, it is more labour intensive and time-consuming than we anticipated. That said, once it was done, the finished result is sleek and solid enough to justify it.

App control

The eufy Security app allows you to adapt settings to your requirements, including sounds the lock makes and granting temporary access for when someone outside your household needs to enter. It's also very simple to set schedules and add users quickly.

Real Homes rating: 4.5 out of 5 stars

best smart lock: August Smart Lock Pro

(Image credit: Amazon)

3. August Smart Lock Pro

Best smart lock for retrofitting

Connectivity: Smartphone, Alexa
Dimensions: L8.6 x W5.6 x H8.6cm
weight: 3.94kg
Reasons to buy
+Control from your smart phone+Keep an eye on who comes in and out of your home+Can be retrofitted
Reasons to avoid
-Expensive option

If you’re looking to give an existing lock system smart capabilities, the August Smart Lock Pro could be the option for you. We’ll admit that it’s pretty pricey, but if you’re looking for a top of the range solution that can be fitted retrospectively, it’s more than worth the investment. Here’s everything you need to know.

Fit retrospectively
As we’ve already mentioned, it’s easy to fit this smart lock retrospectively, transforming an existing lock system into something with smart capabilities. This is perfect if you don’t like the idea of replacing your entire lock system, or are looking for something slightly more on the subtle side.

Monitor your front door from anywhere
If you're concerned about home security, or simply want to keep an eye on who’s coming in and out of your house – be that cleaners, babysitters, or anyone else – this smart lock will allow you to do so. In fact, it’s never been easier to lock, unlock and control keyless access from any location.

Check whether the front door is locked
Perfect if you want to keep a close eye on an elderly or vulnerable friend or family member, check whether or not your front door is locked from any location.

Voice activation
Thanks to Alexa, Siri and Google Assistant compatibility, it’s also possible to control your smart lock system using your voice. Simply connect the two and you’re away.

best smart lock: Yale Conexis L1

(Image credit: Yale)

4. Yale Conexis L1

Best smart lock with handle

Connectivity: Smartphone
Dimensions: 8 x 3 x 28cm
Weight: 2.1KG
Reasons to buy
+Send and receive virtual keys+Receive tamper alerts+Control from your smart phone
Reasons to avoid
-Does require professional installation-May be a little pricey for some

Next up on our list is the Yale Keyless Conexis L1 Smart Door Lock which has an innovative design and is really easy to use. Here’s everything you need to know about it...

Control from your smart phone
Possibly one of the biggest draws of this smart lock from Yale is the ease with which it can be controlled from your smart phone. Thanks to its mobile key option, you’ll never have to worry about forgetting your keys again. Instead, simply tap your smart phone and gain access with ease. 

Want to let a friend, babysitter, cleaner or Airbnb guest into your home? Simply send them a smart key. Then, simply delete it once they’re gone.

Or via a key card
Not sure about using a smart phone to access your home? Concerned about losing charge? There’s an option to enter your home using a key card, too.

Wireless solution
Thanks to its functional, wireless design, this model is also easy to install. All you’ll need is 4 AA batteries and you're good to go.

Perfect for those who are concerned about people trying to gain entry to their home, this model also promises to notify users if it senses a lock being tampered with.

Connect to a wider home security system
One of the main benefits of opting for a smart lock from Yale is that it connects to their wider – and equally reputable – smart home security system. Once connected, this can all be controlled from one app.

best smart lock: August Smart Lock

(Image credit: August)

5. August Smart Lock

Best smart lock for minimalists

Connectivity: Smartphone, Alexa, Google Assistant
Dimensions: 4.14 x 6.6 x 12.19cm
Weight: 3.94kg
Reasons to buy
+Easy installation+Control from your smartphone+More budget friendly than the pro model
Reasons to avoid
-Still relatively expensive

Looking for a slightly cheaper alternative to the August Smart Lock Pro? While it’s still not what we’d call budget, the August Smart Lock is slightly more purse friendly and still offers many of the perks of the August range. Here’s everything you need to know.

Control from your smart phone
Connect your smart lock to your smart phone and you’ll never have to worry about forgetting your keys again. Plus, it’s easy to control who comes in – and out – of your home.

Easy installation
Perfect for those looking for a smart lock that can be fitted retrospectively, this model attaches to your current lock system with ease, and will be ready for use in a matter of minutes.

Share temporary virtual keys
if you want to let someone in on a one-off basis – perhaps a cleaner, delivery man, or Airbnb guest – you can rest safe in the knowledge that their temporary key will expire as soon as you wish it to.

best smart lock: Yale Assure Lock

(Image credit: Yale)

6. Yale Assure Lock

Best smart lock for Apple users

Connectivity: Smartphone, Apple HomeKit, Alexa
Dimensions: 13.97 x 13.97 x 25.4cm
Weight: 1.36kg
Reasons to buy
+ Compatible with Apple HomeKit and Alexa + Use the secure app to create unique PINs 
Reasons to avoid
-Some may not require the PIN capacity

Our third Yale option, and one that sits quite comfortably between the appeal of the first two models, the Yale Assure Lock SL looks beautiful and works like a charm. Here’s everything you need to know about it.

Siri compatible
This model is HomeKit enabled and works with Siri, which is great news for Apple-loving families. Plus, if you’ve got an Apple TV box near your front door, you can access the lock from absolutely anywhere.

Create unique PINs
Want to let friends, babysitters, cleaners or Airbnb guests in with ease? Set a pin from your smart phone, then change it once they’ve left to maintain the security of your home.

Quiet deadbolt
A quiet and slim deadbolt means you won’t have to worry about waking flatmates if you get home late, or leave early.

Can your smart lock be fitted retrospectively?

Looking for more home security solutions?

Serious about enhancing your home security? We've written a series of handy guides designed to make protecting your home easy and affordable:
Best video doorbell
Best home security system
Best porch lights

If you want to ensure minimal damage, or disruption, to your front door – perhaps you’re a renter – you may wish to opt for a smart lock that can be fitted retrospectively. These models will simply attach to your current deadbolt, giving it smart capabilities.

These options can tend to be a little more expensive, so it may be worth opting for a whole new lock system if you’re already thinking of replacing your front door, or your lock system.

Granting temporary access

If you’re looking for a smart lock because you want babysitters, cleaners, Airbnb guests and whoever else to be able to enter your home with ease, you may wish to opt for a smart lock that offers temporary key passes to visitors. Once your visitor has been and gone, you can prevent them from gaining access to your home again by simply cancelling their key.

Do you need a model that’s tamper proof?

If you’re concerned about security, a smart lock that alerts you when it’s being tampered with may be just what you need to put your mind at ease.

What is the best smart lock?

To recap... the best smart lock is the Yale Keyless Connected Smart Lock. This is a great smart offering from home security experts Yale, and it certainly doesn’t disappoint. 

With a sleek and straightforward design, this model offers easy access via smart phone, key card, pin code, or key fob, depending on your preference. Plus, you can set up your smart lock so that it notifies you every time someone tries to access your home.