Best Keyless Door Lock Under £100
Upgrading to a keyless door lock gives you convenience and security without needing to carry physical keys. We have analysed specs, battery life, app ecosystems, and owner reviews to find the best models you can buy for under £100.
Quick answer
The Yale Conexis L1 is our top pick for its reliable build, robust app, and easy retrofit installation. For a budget-friendly option with good smart features, the Wyze Lock (import) offers excellent value if you can find it within budget, though the August Wi-Fi Smart Lock (older gen) is a strong runner-up for its seamless auto-unlock.
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Research updated June 2026.
Yale Conexis L1
Best overall for reliability, app stability, and straightforward installation.
| Product | Best For | Key Spec | Rating | Price |
|---|---|---|---|---|
| Yale Conexis L1 | Best Overall | Retrofit, Bluetooth + hub | 4.5 / 5 | £80-90 |
| August Wi-Fi Smart Lock (3rd Gen) | Seamless Auto-Unlock | Retrofit, Wi-Fi built-in | 4.3 / 5 | £90-100 |
| Wyze Lock (import) | Best Budget | Retrofit, Bluetooth + hub | 4.2 / 5 | £60-70 |
| Yale Smart Living L1 | Best for Smart Home | Z-Wave, retrofit | 4.1 / 5 | £85-95 |
| Ultion Smart Lock (by Brisant) | Best Security | Sold Secure rated, retrofit | 4.0 / 5 | £95-100 |
Yale Conexis L1
Best OverallPros
- Very easy to install on standard UK doors
- Reliable app with good guest access features
- Auto-lock and unlock work consistently
Cons
- Requires separate hub for remote access
- Plastic build feels less premium
The Yale Conexis L1 is a retrofit smart lock that replaces your existing latch, meaning you keep your original door handle. It connects via Bluetooth to your phone and uses a separate Wi-Fi hub (included in some bundles) for remote locking and unlocking. Owner reviews consistently praise the straightforward installation and the reliable auto-lock feature.
Battery life is quoted at around six months with normal use, and there is a key override for emergencies. The main drawback is that the hub is required for remote access, adding to the overall cost if not bundled. For a dependable, no-frills smart lock under £100, this is the best choice.
August Wi-Fi Smart Lock (3rd Gen)
Best for Auto-UnlockPros
- Built-in Wi-Fi, no hub needed
- Auto-unlock works well with geofencing
- Works with existing deadbolt
Cons
- Can be bulky on some doors
- App can be slow to connect occasionally
The August Wi-Fi Smart Lock (3rd Gen) fits over your existing deadbolt, so you keep your original key and lock cylinder. It has built-in Wi-Fi, so you do not need a separate hub for remote access. The auto-unlock feature uses your phone's location to unlock the door as you approach, which many owners find very convenient.
Battery life is shorter than some competitors at around three to six months, and the lock can be bulky on thinner doors. However, for a seamless smart lock experience with no extra hardware, it is a top contender. It integrates with Amazon Alexa, Google Assistant, and Apple HomeKit.
Wyze Lock (import)
Best BudgetPros
- Very affordable for the features offered
- Works with Amazon Alexa and Google Assistant
- Easy to install
Cons
- Requires a hub (sold separately) for remote access
- Import model may have limited UK support
The Wyze Lock is a budget-friendly option that fits over your existing deadbolt. It offers keyless entry via a keypad or the app, and it works with Alexa and Google Assistant. Owner reviews highlight the low price and the reliable basic functionality, though the hub is required for remote access.
This is an import model, so warranty and support may be limited in the UK. The build quality is good for the price, but it is not as robust as the Yale or August. For users on a tight budget who want smart features, it is a solid choice.
Yale Smart Living L1
Best for Smart HomePros
- Integrates with Z-Wave smart home hubs
- Reliable Yale build quality
- Works with many third-party systems
Cons
- Requires a Z-Wave hub (not included)
- No built-in Wi-Fi or Bluetooth
The Yale Smart Living L1 is designed for users with a Z-Wave smart home hub, such as Samsung SmartThings or Hubitat. It replaces your existing latch and offers the same reliable build as the Conexis L1. It is a good choice if you already have a Z-Wave system and want to integrate your lock.
It does not have built-in Wi-Fi or Bluetooth, so it relies entirely on the hub for connectivity. This makes it less flexible than the Conexis L1 for standalone use. For smart home enthusiasts, it is a solid, secure option.
Ultion Smart Lock (by Brisant)
Best SecurityPros
- Sold Secure rated for high security
- Very robust build quality
- Easy to retrofit
Cons
- More expensive than others
- App is less polished than Yale or August
The Ultion Smart Lock by Brisant is a retrofit lock that replaces your existing latch. It is Sold Secure rated, meaning it offers a high level of physical security. The build quality is excellent, with a metal construction that feels very solid. It connects via Bluetooth and uses a separate hub for remote access.
Owner reviews praise the security and build, but note that the app is not as refined as competitors. It is also at the top of the budget range. For users who prioritise physical security over app features, this is the best choice.
What to Check Before Buying a Keyless Door Lock Under £100
Before you buy, check your door's compatibility. Most retrofit locks work with standard UK doors, but measure the thickness and the backset (distance from edge of door to centre of lock). Also check if your door has a mortice lock or a euro cylinder, as some locks only work with one type.
Mistakes to Avoid
A common mistake is not checking if a hub is required for remote access. Some locks only work via Bluetooth without a hub, meaning you cannot lock or unlock from away. Another mistake is ignoring battery life; look for models with at least six months of battery life and a low-battery warning.
FAQs
Are keyless door locks under £100 secure?
Yes, most models from reputable brands like Yale and Ultion offer good security, with features like key override and tamper alerts.
Do I need a hub for a keyless door lock?
Some locks require a separate hub for remote access via Wi-Fi, while others have built-in Wi-Fi. Check the product specs before buying.
How long do batteries last in a keyless lock?
Battery life typically ranges from three to six months depending on usage and connectivity. Look for models with low-battery alerts.
Can I install a keyless door lock myself?
Yes, most retrofit locks are designed for easy DIY installation with basic tools. Instructions are usually included.
Will a keyless lock work with my existing door handle?
Retrofit locks replace the latch but often keep your existing handle. Some models require a specific handle type.
What is the best keyless door lock under £100?
The Yale Conexis L1 is our top pick for its reliability, easy installation, and good app features.
Do keyless locks work with smart home systems?
Many models work with Amazon Alexa, Google Assistant, or Apple HomeKit. Check compatibility before buying.
What happens if the battery dies on a keyless lock?
Most locks have a key override or a USB port for emergency power. Always keep the backup key accessible.
Can I use a keyless lock on a rental property?
Yes, but check with your landlord first. Retrofit locks can be removed without damaging the door.
Are keyless locks weather-resistant?
Most are designed for indoor use only. For outdoor use, look for models with an IP rating for weather resistance.
Our verdict
The Yale Conexis L1 is the best keyless door lock under £100 for its reliable build, easy installation, and consistent app performance. For a budget option, the Wyze Lock offers great value if you are comfortable with an import model. For the best security, the Ultion Smart Lock is a solid choice.