Best smart locks 2025: secure your home with smart locks, deadbolts and more

Having one of the best smart locks at the front of your door means you can have keyless entry for anyone entering your home, so no more panicking if you forgot your keys! For safety, you can change the locks virtually any time you need to, making it ideal for homes that are being used as guest houses, Air BnB’s, and even for giving someone temporary access to your home.

This and so much more can be done via a convenient app on your phone that's compatible with your smart lock of choice. But as with all technology, you’ll want to know its reliable and doing the job as its supposed to – after all, it may be your fault for leaving your keys at home but what about when tech goes awry?

To save you the stress of finding the right smart lock (or a bad one), T3 has done the hard work to help you find the best smart locks that do the best job at keeping your home safe and secure. As there are so many smart locks available, we've broken them down into deadbolt locks, multi-point locks, euro cylinder locks and night latch locks, but the Ultion Nuki Plus is our favourite smart lock at the moment.

One thing to be aware of is that typically a smart lock will need a pre-installed lock barrel or some kind of additional hardware in order for the smart lock to work – although this isn’t always the case, and you can get some that don’t require any extra instalments.

If you’re planning on installing a smart lock yourself, we’ve got the inside scoop, as we tried and tested them all ourselves. So read on for more information on features, benefits and honest overall reviews to help you find the best smart lock for your home.

T3's Top 3

WRITTEN BY

WRITTEN BY

Bethan Girdler-Maslen

Bethan Girdler-Maslen is T3's Home Editor, covering home, style and wellness. Having covered smart home tech for a while now, you'll often see her testing video doorbells and security cameras while learning all she can about smart locks.

The best smart lock 2025 ranking

The best smart lock overall

The best smart lock you can buy today is the Ultion Nuki Plus. A new release in 2023, the Ultion Nuki Plus offers an impressive solution to the original kit with a few important upgrades. Not only is the lock faster to operate with a rechargeable battery, but it has Wi-Fi built in, allowing seamless connection to your home network for remote operation.

The Ultion Nuki Plus can be operated in multiple ways, including keycodes, voice commands, the Nuki app, key fob, fingerprint access and a police-approved key with Apple Find My technology. The Ultion Nuki Plus is also compatible with Ring, Alexa, Google Assistant and Apple HomeKit.

With security in mind, the Ultion Nuki Plus is protected with end-to-end encryption and it will automatically go into Lockdown Mode if it detects an attack. If this happens, a hidden firing pin will secure the lock and stop the door from opening. The entire smart lock is incredibly impressive and it's won the T3 Award 2023 for Best Smart Security. Read our full Ultion Nuki Plus review for more.

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The best deadbolt smart lock

Deadbolts are generally used as an additional lock, backing up something like a night latch, to provide a second barring point into a door frame. They're installed within the body of the door, with a shackle which protrudes into the frame when engaged and retracts flat to the door when open. Sometimes they'll use a euro cylinder, sometimes they'll use a lever lock mechanism inside.

Unusually, at least in the company of the locks we've tested, the Igloohome Deadbolt 2S comes with everything (bar tools) which includes the actual bolt portion of the lock. That makes it a great DIY addition to an existing door, one which doesn't necessarily require the existing lock to be hacked about or removed.

It's easy enough to install, though the included instructions aren't tremendously detailed, and the online video guide, while sharp enough, does leave a couple of aspects a little muddy. We didn't struggle, put it that way, though it did take an hour and a half to get everything perfect.

The Deadbolt 2S is absolutely gorgeous, with a super-slim front panel on the outside of the door and a rather heftier (but not unattractive) locking box on the back. The light-up PIN panel disappears when not in use, only illuminating when a palm is pressed on it; there are confirmatory beeps when numbers are pressed and codes correctly (or incorrectly) entered.

Through the front panel you can gain access via a PIN code, a Bluetooth key, or even (once you've pulled off the circular cover) a traditional key in case of emergency, the latter of which uses a tough-to-pick four-sided dimple lock for extra security. There's a sensor included, which detects a simple stick-on magnetic module on the door frame to automatically lock the deadbolt when your door is shut. That's very neat, and the timing of it can be customised in-app.

About the Igloohome app: it's excellent. It's particularly well presented, making management of PIN codes for limited or permanent access a breeze, and you can use it to generate Bluetooth keys and send them on even when you're out of range of the unit itself. That's management gold, and easy enough for even first-timers to use. Igloohome's Airbnb integration is an extra bonus, enabling you to line up keys for all of your forthcoming bookings automatically.

If you're looking to add a smart lock to an existing door, this is the best smart lock. It looks great and we found it to work flawlessly; we can't think of a better option whether you're administering it from near or far.

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The best Multi-Point Smart Lock

For front doors with serious security, a multi-point lock is built into the structure of a door, providing multiple bolts which engage with the frame when the lock is activated. If you have a UPVC front or back door, you likely have a multi-point lock; they're not common elsewhere, but if you have to pull the handle up before you can turn the key to lock the door that's another good indicator.

Multi-point locks offer good protection against forced entry, and they generally only need a single key to get them locked up. But realistically a multi-point mechanism does mean you're rather limited in terms of your smart lock options. It's not as if you can just whip out a drill and drop in a deadlock. The only real option, save for ripping out the whole door and potentially all the fittings around it, is to replace the handle assembly with something smarter.

Hardware-wise, the Yale Conexis L1 lands sure-footed in a great place. It's hefty and handsome, with a thick (and rather stiff) handle which has a pleasant springiness to it. There's no keyhole, so it's entirely pickproof; the Conexis L1 uses NFC tags and cards (one of each included) as well as Bluetooth to unlock.

It's an impressively straightforward 20-minute replacement for just about any existing multi-point lock, with simple enough instructions and fully adjustable mounting making it a breeze to get screwed on however your holes are currently configured.

The hardware itself doesn't just look good, but it works really well. In place of the standard euro cylinder lock is a thin, internal latching cylinder, entirely hidden withing the centre of your door so it's impossible to reach from the outside. Pull up the handle and the Conexis L1 both engages your multi-point locking mechanism and clicks the cylinder over to its locked mode. Unlocking is a case of bringing an NFC tag close to the receiver on the outside of the lock, using Bluetooth through the app, or pressing in and twisting the thumbturn on the inside of the door.

The Conexis L1 tells you its status via a series of ear-splitting beeps; necessary, we suppose, but they could be a little more pleasant. They come in extra-handy when the battery is running low – you can't miss the alert – particularly because there's no way to see the current battery level through Yale's mobile app.

That app. Oh, that app. It's pretty mediocre. Functionally, it does allow things like sharing Bluetooth keys with others, with a small number provided with the lock and additional keys available for around £2 each, and you can (after some fiddling) use it to unlock your door just fine. But it's rudimentary at best, clunky at worst, and it doesn't appear to be available on international app stores meaning this could be a problematic addition to holiday lets if you expect foreign visitors.

The Conexis L1 is extensible to fit your smart home kit; there's an add-on module which connects the L1 to Yale's home alarm system, along with both a Z-Wave module compatible with Samsung's SmartThings system and one for Yale's own smart home hub, the latter two of which let you passthrough control to Wi-Fi for remote operation as well as Bluetooth control. Read our full Yale Conexis L1 review.

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The best Euro Cylinder Smart Lock

Euro profile cylinders can be found on all sorts of doors. They're compact barrels which run through the door, with the key turning a latch in the centre that actuates the mechanism of a mortice case or the locking catch of a multi-point lock. On outer doors, the internal side of a euro cylinder will sometimes swap the key out for a thumb turn, which allows the cylinder to be locked without the need for a key.

Smart lock brand, Nuki offers a range of smart locks that are affordable, can fit on almost any door, and install in minutes. The Ultion Nuki Smart Lock is no exception.

When setting up the Ultion Nuki, the installation was pretty seamless, with the Nuki cylinder, holder and device sliding and clicking into place (although our reviewer did have a professional come in to do this). Once activated by the Nuki app, you can communicate with the device via a Bluetooth connection between your phone and the Ultion Nuki. Once linked, the Smart Lock learns the movement of the lock, seeing how many turns it takes to fully extend the bolt, and gives you a range of options, such as auto locking and a pin to access.

Packed full of features, accessories and functions, the Ultion Nuki smart lock makes locking and unlocking your door effortless. Read our full Ultion Nuki review for more details.

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The best Night Latch Smart Lock

A night latch, also known as a Yale lock due to the company's ubiquity in their manufacture, is a surface-mounted lock suitable for wooden doors. It's the traditional first line of front door defence because a night latch, with its sprung catch, automatically secures the door when it's pushed shut.

You'll rarely see a night latch on its own. While they're convenient and common, the surface mounting leaves them open to brute force attacks. If your night latch isn't backed up by a second bolt, likely a deadbolt installed inside the door, it really should be.

Yale, by way of parent company Assa Abloy, knows a thing or three about night latches. Installing the Keyless Connected doesn't specifically demand Yale hardware on the other side, but you will either need an existing night latch or to purchase a new one to go along with it.

The process, as with Yale's multi point smart lock, isn't tricky in the least. One extra through-hole is required in the door, which covers both the top mounting point of the keypad and the power delivery to it from the battery pack mounted inside the door. The rest simply slots into place, with only a fiddly wiring connection slowing things down.

We were somewhat concerned about the lack of screws required to mount that front-facing box, but once it's installed it feels formidably tough. Tamper with it and someone's going to know about it fast, since there's an 80dB siren included that (we learned from experience) does tend to rouse the neighbours.

Like the Conexis L1, you can open the Keyless Connected with NFC cards or key fobs (one of each included), and there's also a pin pad for keyless entry. Access restrictions for both methods are configured on the pad itself; you can add up to 20 tags and 20 codes at once. There are time-limited codes, too, allowing you to set up access for a 24-hour period.

Entering a code or flashing a key fob doesn't automatically unlock the door: instead, it engages the connection between the Keyless Connected's knob and your night latch. Turn it (within a window that you specify), and you'll turn the latch on the other side. Without an unlock, the knob does nothing, so it can't be forced.

We must take slight issue with the 'Connected' part of 'Keyless Connected' because, at least out of the box, there's no connectivity to speak of. That's all provided by one of Yale's add-in modules, be it one which adds support for Yale's smart home system, Samsung's SmartThings platform, or a remote key fob. If this is something you're likely to want to administer from afar, you'll absolutely need one of the former two modules. Once they're installed, you'll be able to use Yale's rickety app to add and remove PIN codes for guests. Unlike the Conexis L1, there's no Bluetooth option here.

Niggles aside, the Keyless Connected is an impressive piece of hardware, and an impressively simple drop-in way to turn a regular night latch into a smarter one. You'll still need a second lock (such as a deadbolt) to secure overnight if you're using it on an external door, given the slight weakness of night latches in general, but it's otherwise a clever piece of kit that works very well.

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How to choose the best smart locks

To choose the best smart lock, you'll first need to look at the type of door you have. As you can see from this guide, there are multiple lock types so once you've decided the lock you need, you can narrow down your options.

Next is features. Unlocking compatibility is important, as you may want app control as well as a spare key, fingerprint or palm vein recognition, or keypads and special codes.

DIY is also important as some smart locks can be easy to set up, while others can be trickier so you may need to call someone in. Price is also worth considering, too, and design, depending on whether you want your smart lock to look like a regular door handle or not.

How we test the best smart locks

To test the best smart locks, we get our hands on the latest models and take them through vigorous testing for at least four weeks. We look at everything from set up and design, to features, performance and app.

Set-up is a big part of smart lock testing, so we make sure to take our time DIY-ing the installation but will be completely honest if we need to call in a professional. Once it's set-up, we use the door as normal and try the different unlocking methods it comes with, including properly testing out the accompanying app.

Once we've tested the best smart locks, we publish a review and we'll add it to our main guide if we think it deserves a spot. We'll also continue to test it and update the review as time goes on so you get a full view of how the smart lock works overtime.

To find out more, see how we test at T3 for more.

FAQs

How does a smart lock work?

A smart lock is an electromechanical lock that locks and unlocks your door without the need for a key. Many smart locks are Bluetooth or Wi-Fi enabled, and can be controlled via an app on your smartphone, electronic keypad, biometric sensor, access cards and your fingerprint.

Why should I upgrade to a smart lock?

There are many reasons why you might want to upgrade to a smart lock. A big one is that you don't need to use a key, so if you often lose yours, you don't have to worry about that anymore. If you also want to secure your property further, a smart lock can add an extra level of security and protection.

See 5 reasons why you need a smart lock for more details.

How do I install a smart lock?

Most smart locks are pretty easy to install yourself but if you have any issues, you should call in a professional as you don't want to mess around with your front door!

To install a smart lock, make sure to do your research and check fitting times which is also listed in the products' instructions. You should also make sure to download the accompanying app for remote access.

See how to choose and install a smart lock for a full guide.

Reviewer panel

Mat Gallagher

As T3's Editor-in-Chief, Mat Gallagher has his finger on the pulse for the latest advances in technology. He's tested many smart locks and is a big fan of Ultion and Nuki.

Alex Cox

T3 Magazine's Gadget Guru, Alex has tested many home appliances and smart home devices, including smart locks from Yale.