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Best smart door lock UK

Updated: 16 October 2026

You want one smart lock for a UK door, and amazon.co.uk is mixing a £39.99 fingerprint lever with a £309 cylinder lock that carries a higher star rating. Those scores answer different jobs. This page names a best smart door lock UK only inside the eleven listings on our [smart door lock](/hub/electronic-surveillance/smart-door-lock) comparison, using the rating and review count we recorded on 15 October 2026. The Products Compared editorial team did not run a laboratory test. A qualifying purchase can earn us a commission at no extra cost to you. The door you have is the condition on every pick.

You want one smart lock for a UK door, and amazon.co.uk is mixing a £39.99 fingerprint lever with a £309 cylinder lock that carries a higher star rating. Those scores answer different jobs.

Our top picks

Nuki Nuki Smart Lock Ultra, euro cylinder included

Best overall

Nuki Nuki Smart Lock Ultra, euro cylinder included
9.2/10about £309
View offer
Nuki Nuki Smart Lock Pro, retrofit, Wi-Fi

Alternative

Nuki Nuki Smart Lock Pro, retrofit, Wi-Fi
8.8/10about £229
View offer
TEKXDD TEKXDD fingerprint handle, matte black

Best value

TEKXDD TEKXDD fingerprint handle, matte black
8.6/10about £39.99
View offer
On this page
  1. 1.What “best” means on this page
  2. 2.Top pick, Nuki Ultra
  3. 3.Best value, TEKXDD
  4. 4.If you must keep the cylinder

What “best” means on this page

“Best” here means the highest amazon.co.uk star rating in this set that also rests on a large review count, for a lock that arrives as a complete euro-cylinder product. Which? describes £200–£300 as the band shoppers meet for a smart lock. The prices we recorded sit around that band: the Nuki Ultra is £309.00, the Nuki Pro is a raw £229.00, and the TEKXDD handle is £39.99. A same-day search on 15 October 2026 showed the Pro below its £229.00 RRP. This comparison keeps the raw figure. None of our captured bullets prints BS 3621, TS 007, or Sold Secure.

Top pick, Nuki Ultra

The top pick is the Nuki Smart Lock Ultra. The box includes the lock, a universal euro cylinder, a mounting plate, a charging cable, and a black cover. Built-in Wi-Fi is included. You get new keys because the cylinder is new. A rechargeable pack and a magnetic charging lead are the power story on the listing. Buy it when a new cylinder is acceptable to you and to the insurer who covers that door. First fits in the reviews run from about 20 minutes to several hours, against Nuki’s own claim of under 15 minutes. One review saw a sharp battery drop in the first week, and another charging lead failed. If the cylinder must stay, read smart lock home insurance before you remove anything.
Nuki Nuki Smart Lock Ultra, euro cylinder included

Testsieger

Nuki Nuki Smart Lock Ultra, euro cylinder included
9.2/10about £309
View offer

Best value, TEKXDD

The best value pick is the TEKXDD fingerprint handle, at £39.99, with 4.2 from 1,011 reviews. That is the widest review base among the handles near £40. The La Macaza is £39.90 and 4.2 from 22 reviews. The DHEISHA is £40.88 and 4.2 from 95. The ME JO at £79.99 and the Splenssy at £83.99 had no review line in the capture. Reviewers mention a bedroom install, a fast fingerprint, and adjustable spacing. The included line is two handles and instructions. The format test is on the smart door lock buying guide.

If you must keep the cylinder

Keep the existing euro cylinder and the Ultra is the wrong product. The Nuki Smart Lock Pro is the keep-the-cylinder option here: 4.3 from 1,190 reviews, the largest count among the euro locks, at a raw £229.00. The key stays on the inside, and the cylinder has to open from both sides with that key in place. Nuki’s notes put the key at up to 4 mm thick and 37 mm of protrusion. If the outside key stops working once the inside key is inserted, the emergency function is missing. The Yale Conexis L2 replaces a lift-to-lock handle instead. The head-to-head is on Yale Conexis vs Nuki.

Common questions

Which listing has the highest rating with a large review count?
The Nuki Ultra is 4.5 from 663 reviews, the highest star rating in this set. The Nuki Pro is 4.3 from 1,190, so it leads on volume. The TEKXDD is 4.2 from 1,011, at £39.99, for a different door.
Who should skip the Ultra?
Skip it if your policy names the cylinder now in the door, if you need to keep your existing keys, or if the door is a timber nightlatch or a lift-to-lock handle change. The Ultra replaces the euro cylinder. At £309.00 it is also the dearest listing here. A high score does not move it onto a mechanism it does not turn.
Is the £39.99 handle the best value for a front door?
It is the best value in this set for a 35–55 mm door where a fingerprint lever is the right object, judged by £39.99 and 1,011 reviews. It is a weak buy as the only lock on a uPVC multipoint final exit. The listing does not name BS 3621 or TS 007. Four AAA batteries are extra, and a review says the entry log stays on Bluetooth.
Why is the Conexis behind the Ultra on this page?
The Conexis L2 is 3.5 from 129 reviews at £188.98. The Ultra is 4.5 from 663 at £309.00. This Conexis includes the Wi-Fi bridge for a 44–70 mm PVC or composite lift-to-lock door, which is the right product when that is your door.
Does a top pick mean the insurer has approved it?
The top pick is the highest amazon.co.uk rating with a substantial review count inside this comparison. The Ultra listing does not print BS 3621, TS 007, or Sold Secure. Allianz’s public guidance still points many householders towards a traditional BS 3621 lock as well, and towards telling the insurer before a fit. Approval sits in your schedule.
What if I need to keep my existing cylinder?
Choose the Nuki Pro, after a key works from both sides with the inside key left in. The raw price here is £229.00, and the listing is 4.3 from 1,190 reviews. The Ultra is the model that replaces that cylinder. The other products, including both Yale nightlatch keypads, are on the main comparison when the door is not a euro cylinder.

Related pages

How to fit a smart door lock

Smart door lock

Smart door lock buying guide: match your mechanism

Smart lock home insurance: ask before a cylinder swap

Yale Conexis vs Nuki: handle, Pro, or new cylinder

Sources

Public UK sources for the standards, insurance wording, and product-security rules, last checked on 15.10.2026. Prices and star ratings are the amazon.co.uk figures captured that day.

  1. GOV.UK: Regulations for consumer connectable product security (retrieved 15.10.2026)
  2. Product Security and Telecommunications Infrastructure (Security Requirements) Regulations 2023 (retrieved 15.10.2026)
  3. Allianz UK: Stay insured with the right house locks (retrieved 15.10.2026)
  4. MoneySuperMarket: What locks do I need for home insurance? (retrieved 15.10.2026)
  5. Secured by Design: Locks and associated hardware (retrieved 15.10.2026)
  6. Yale Home: Compatible with Conexis (retrieved 15.10.2026)
  7. Nuki Help: What is the emergency function? (retrieved 15.10.2026)
  8. Which?: Do I need a smart door lock? (retrieved 15.10.2026)