Nuki Smart Lock Ultra

Nuki Smart Lock Ultra

4.5
487 ratings
Launch Year: 2025

Model: 221145

€349.00
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Our review

Nuki Smart Lock Ultra Review: The Premium, Best-of-Nuki Smart Lock

Nuki's most refined lock yet, faster, more compact and higher quality, with built-in Wi-Fi and Matter, at a top-tier price.

The verdict

The Nuki Smart Lock Ultra is the flagship of Nuki's lineup and, by most owner accounts, the brand's best lock so far: noticeably faster, more compact and more premium than previous generations, with built-in Wi-Fi and Matter (over Thread) so remote and smart-home access work without add-ons. It installs in about an hour with a guided app and included tools, and offers hands-free auto-unlock. The main caveat is the high price, with only minor install quirks otherwise.

Best for
  • European retrofit doors
  • Premium smart-lock buyers
  • Hands-free auto-unlock
  • Apple Home / Matter setups

Pros

  • Nuki's fastest, most refined lock yet (faster, more compact, premium feel)
  • Built-in Wi-Fi: remote access without add-ons
  • Matter over Thread with easy Apple Home QR setup
  • Rechargeable built-in battery and three lock modes
  • Guided, quick install with included tools; adapts to UK/US/EU door thicknesses
  • Excellent build quality, design and customer support

Cons

  • Most expensive Nuki and a premium-priced product overall
  • Setting the cylinder length can be slightly tricky
  • Isolated hardware issue (a too-short screw causing errors), easily fixed
  • No built-in keypad/fingerprint/NFC/Apple Home Key (keypad is an accessory)
  • Retrofit for European cylinders only (not US deadbolts)
  • Not weather-resistant

Who is the Nuki Smart Lock Ultra for?

This is the top-tier model in Nuki's range, for people who want the most refined version and will pay for it. Like the rest of the line it is a smart lock for European-style doors, but the Ultra is the most compact and premium, with built-in Wi-Fi, Bluetooth and Matter (over Thread), three lock modes, a rechargeable built-in battery, and full support for Apple HomeKit, Google Home, Alexa, SmartThings and Home Assistant. It offers auto-lock after the door closes and geolocation hands-free auto-unlock. Keypad and fingerprint entry are separate accessories. It best suits smart-home enthusiasts and Apple households who want Nuki's fastest, best-built lock and seamless Matter-over-Thread setup.

What buyers love

Owners, including several long-time Nuki users, consistently call the Ultra a real upgrade: faster response, a more premium feel and more comfortable operation than older models, with one calling it the best Nuki version yet. The unboxing and app give an Apple-like impression, and despite looking complex at first, installation is described as simple and quick (around an hour or less) thanks to a step-by-step animated in-app guide and included tools, scan the QR code and it is added to Apple Home via Matter over Thread. Built-in Wi-Fi means remote access works out of the box, the build quality and design are praised highly, it adapts to most door thicknesses (UK/US/EU standards), and Nuki's customer support again earns strong marks.

What to know before you buy

The biggest consideration is price: it is the most expensive Nuki and a premium product overall, though owners broadly feel it is worth it. Install quirks are minor: setting the cylinder length can be slightly tricky, and one owner traced intermittent locking errors to an included screw being too short, easily fixed by swapping in a slightly longer hardware-store screw. Like the rest of the range it is a retrofit for European-style cylinders (not US deadbolts), is not weather-resistant, and has no built-in keypad/fingerprint/NFC/Apple Home Key (the keypad is a separate accessory). It uses a rechargeable battery rated around six months. Overall, complaints are few and mostly about cost.

Is the Nuki Smart Lock Ultra worth it?

For buyers who want the best Nuki and a polished, fast, Matter-ready smart lock, yes, it earns the highest average rating in the Nuki line, and owners repeatedly say it justifies its premium with superior speed, build and refinement. Built-in Wi-Fi and easy Matter-over-Thread setup make it especially appealing for Apple Home users. Just budget for the top-tier price (more with the keypad), confirm your door/cylinder fit, and accept it is a European retrofit. If you want the flagship experience, it is an excellent choice.

Frequently asked questions

Why choose the Ultra over the Nuki Pro or Go?

The Ultra is the flagship: the most compact and premium, with the fastest response and best build. Like the Pro it has built-in Wi-Fi and a rechargeable battery (so no paid add-ons for remote access), but owners describe it as a noticeable step up in speed and refinement over both the Pro and the Go.

Does it need a separate bridge for remote access?

No. It has built-in Wi-Fi, so remote control and smart-home integration work out of the box without buying a bridge or unlock add-on.

Is it hard to install?

No. Despite looking complex when unboxed, the in-app guided setup with animated steps and the included tools make installation quick (around an hour or less). Setting the cylinder length is the only slightly fiddly part.

Which platforms does it support?

Apple HomeKit, Google Home, Amazon Alexa, Samsung SmartThings and Home Assistant, plus Matter over Thread. You can add it to Apple Home by scanning the QR code.

Does it have a keypad or fingerprint reader?

Not built in. Passcode and fingerprint entry use Nuki's separate Keypad accessory. On its own it uses Bluetooth, hands-free auto-unlock, the app and your physical key.

At a glance

Summary

Everything this door lock supports, grouped by category.

Size & Materials
Inner Panel Dimensions (57 x 58 mm)8.8 oz (250 g)Available in colors
Connectivity
2.4 GHz WiFiBluetoothThread Protocol (Thread Border Router required)
Integrations
Google HomeAlexaApple HomeKitSamsung SmartThingsHome AssistantMatter
Lock/Unlock System
Remote (One time purchase required)BluetoothPasscode (Keypad required)Fingerprint (Keypad 2 required)Physical Key
Automatic Lock / Unlock
Afer Door is closedBy Geolocation
Alerts
Door Locks/UnlocksLow Battery Alert
Features
One-Time Password (Keypad required)Periodic Password (Keypad required)

Price History

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Company
Nuki logo

Nuki

4.2/ 5 avg ratingAustria flagHeadquartered in Austria

Nuki is an Austrian company specializing in smart locks that retrofit onto existing European door cylinders without replacing the lock. Its smart locks support keyless entry, auto-unlock and remote access, with bridges for Wi-Fi and broad ecosystem support including Matter, HomeKit, Alexa and Google Home. Nuki is a leading smart lock brand in Europe.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials

Weather Resistance

NO

Outer Panel Dimensions

-

Inner Panel Dimensions

57 x 58 mm

Weight

8.8 oz (250 g)

Available in colors

YES

Power

Battery Type

Built-in

Battery Life

6 months

Backup Battery

NO

Connectivity

2.4 GHz WiFi

YES

5 GHz WiFi

NO

Bluetooth

YES

Z-Wave

NO

Zigbee

NO

Thread Protocol

Thread Border Router required

Other

NO

Integrations

Google Home

YES

Alexa

YES

Apple HomeKit

YES

Samsung SmartThings

YES

Home Assistant

YES

IFTTT

NO

Matter

YES

Lock/Unlock System

Remote

One time purchase required

Bluetooth

YES

Passcode

Keypad required

Fingerprint

Keypad 2 required

Face Recognition

NO

NFC Tag

NO

Apple Home Key

NO

Physical Key

YES

Automatic Lock / Unlock

When Away

?

Afer Door is closed

YES

By Geolocation

YES

Alerts

Door Locks/Unlocks

YES

Tamper-proof Alert

NO

Low Battery Alert

YES

Multiple Unlocking Failure Alert

NO

Video

HD Video

NO

2K Video

NO

Night Vision

NO

Internal Storage

NO

MicroSD Card Slot

NO

Motion Detection

NO

Range Of Detection

-

Customizable Area

NO

Sensors

Door Open/Close

NO

Features

One-Time Password

Keypad required

Periodic Password

Keypad required

Anti-peep Password

NO

Emergency Fingerprint

NO

Doorbell

NO

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