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NUKI Smart Lock or NUKI Smart Lock Ultra? Which NUKI Model to Buy

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When you compare the nuki smart lock vs smart lock ultra, you are looking at two distinct keyless entry systems. Both offer app control, auto-locking, and smart home integration. The main difference lies in their physical design and access options. One model supports biometric and NFC access with a separate keypad, while the other is built for European-style doors with integrated Wi-Fi. This guide breaks down the specifications to help you choose the right fit for your door and security needs.

Key differences

AspectNuki Smart Lock with Keypad 2 NFCNuki Smart Lock Ultra White Euro
Door CompatibilityStandard US DeadboltEuro Profile Cylinder
Access MethodsKeypad, Fingerprint, NFC, AppApp, Auto-Unlock
ConnectivityBluetooth, Wi-Fi, Matter over ThreadBuilt-in 2.4 GHz Wi-Fi, Bluetooth, Matter
Weight12 ounces8.8 ounces
ColorSilver and BlackWhite

Which one should you choose?

Choose Nuki Smart Lock with Keypad 2 NFC if

  • You have a standard US deadbolt and need fingerprint or keypad access
  • You want to manage up to 200 entry codes and 35 NFC keys
  • You prefer Matter over Thread for smart home connectivity

Choose Nuki Smart Lock Ultra White Euro if

  • You have a European-style door with a Euro Profile Cylinder
  • You want built-in Wi-Fi without needing a separate bridge or hub
  • You prefer a lighter unit that weighs 8.8 ounces

Verdict: Choose the Nuki Smart Lock with Keypad 2 NFC if you have a standard US deadbolt and need versatile access methods like fingerprints and codes. Select the Nuki Smart Lock Ultra if you have a European-style door and want a lighter lock with built-in Wi-Fi. Your choice depends entirely on your door type and preferred access features.

Nuki Smart Lock vs Ultra Comparison

access methods

Edge: Nuki Smart Lock with Keypad 2 NFC

The Nuki Smart Lock with Keypad 2 NFC offers diverse entry options. You can unlock using your smartphone, fingerprint, entry code, NFC, Apple Home Key, Samsung Digital Home Key, or Auto Unlock. It stores up to 20 fingerprints and 35 Tap to Unlock keys. The Nuki Smart Lock Ultra relies primarily on the Nuki App for keyless entry. It supports Auto-Unlock and Matter connectivity. The Ultra does not mention biometric or NFC options in its data. If you need physical fingerprint or code access, the first model provides more flexibility for everyday use.

door compatibility

Edge: Tie

The Nuki Smart Lock with Keypad 2 NFC is designed for US deadbolt locks. It installs over your existing deadbolt in under 15 minutes without drilling or wiring. The Nuki Smart Lock Ultra is specifically designed for Euro Profile Cylinders. It is not compatible with standard US deadbolt locks. The Ultra includes a Universal Cylinder for European-style doors. If you have a standard American door, the first model is the only viable choice. The Ultra is ideal for international properties or European-style entrances where cylinder types differ significantly.

connectivity

Edge: Tie

Both locks support Bluetooth and Matter for local and smart home integration. The Nuki Smart Lock Ultra features built-in 2.4 GHz Wi-Fi. This allows direct connection to your home network without an extra hub. You can lock or unlock remotely and check real-time activities from anywhere. The Nuki Smart Lock with Keypad 2 NFC supports Wi-Fi and Matter over Thread. It also works with Apple Home, Alexa, Google Home, and SmartThings. Both provide robust connectivity, though the Ultra emphasizes direct Wi-Fi access in its description.

physical dimensions

Edge: Tie

Both locks share identical external dimensions: 2.24 inches in width, 2.28 inches in height, and 2.24 inches in length. The difference lies in weight. The Nuki Smart Lock with Keypad 2 NFC weighs 12 ounces. The Nuki Smart Lock Ultra weighs 8.8 ounces. The Ultra is lighter, which may matter for installation balance. Both are compact enough to fit standard door profiles. The weight difference is minor but noticeable. You should consider if the lighter unit suits your door's aesthetic or mechanical requirements better.

smart home features

Edge: Nuki Smart Lock with Keypad 2 NFC

Both locks integrate with Apple Home, Google Assistant, Amazon Alexa, and SmartThings. The Nuki Smart Lock with Keypad 2 NFC supports Matter over Thread for future-proof integration. It also offers bank-level encryption and local data storage for security. The Nuki Smart Lock Ultra supports Matter and built-in Wi-Fi for remote control. It allows permission management via the app. Both offer auto-locking and remote access. The first model adds fingerprint and NFC capabilities for enhanced access control, while the Ultra focuses on direct Wi-Fi connectivity without a hub.

Choose your NUKI lock based on your door

US homeowner with standard deadbolt

Our pick: Nuki Smart Lock with Keypad 2 NFC

This model fits standard US deadbolts. It includes a keypad for codes and stores up to 20 fingerprints. The silver and black design weighs 12 ounces. You get flexible access via app or NFC keys. It is engineered for local use with bank-level encryption and tamper alerts for your specific door type.

European resident with Euro cylinder

Our pick: Nuki Smart Lock Ultra White Euro

This lock is designed for Euro Profile cylinders. It is not compatible with US deadbolts. The white unit weighs only 8.8 ounces. Built-in 2.4 GHz Wi-Fi connects directly to your network without a hub. You can control it remotely via the app. It supports Matter and works with major smart home platforms.

User wanting biometric entry

Our pick: Nuki Smart Lock with Keypad 2 NFC

Only this model supports fingerprint access. It stores up to 20 unique fingerprints for quick entry. You can also use entry codes or NFC keys. The device includes a separate keypad. This adds multiple layers of keyless access. The heavier 12-ounce build supports these additional hardware components securely.

The products compared

Nuki Smart Lock with Keypad 2 NFC

Best for: Existing deadbolt owners

Connectivity
Bluetooth, Wi-Fi, Matter over Thread
Installation Type
Interior retrofit
Auto-Lock Delay
Auto-Lock
Fingerprint Capacity
20
User Code Capacity
200
Included Door Hardware
Deadbolt, Keypad

View on Amazon: Nuki Smart Lock with Keypad 2 NFC Affiliate link

This Nuki Smart Lock adds keyless entry to your existing deadbolt. You unlock via app, fingerprint, code, or NFC. It supports up to 200 codes and 20 fingerprints. The unit weighs 12 ounces and fits over your current lock. It connects via Bluetooth, Wi-Fi, and Matter over Thread. This model suits you if you want flexible access methods without replacing your hardware.

Pros

  • Supports multiple access methods including fingerprint, code, and NFC
  • Stores up to 200 entry codes and 20 fingerprints
  • Connects via Bluetooth, Wi-Fi, and Matter over Thread
  • Installs over existing deadbolt in under 15 minutes

Cons

  • Keypad is not included in the base model description
  • Requires separate Keypad purchase for code access
  • Limited to 20 stored fingerprints

Good fit if

  • You want to keep your current deadbolt
  • You need multiple ways to unlock the door
  • You use Matter-compatible smart home hubs

Skip if

  • You need code access without buying extra hardware
  • You prefer a single integrated unit
  • You do not want to install over existing hardware

Verdict: Nuki Smart Lock with Keypad offers versatile access options for renters. It fits users who value flexible entry methods and existing hardware retention.

Nuki Smart Lock Ultra White Euro

Best for: European doors with Euro Profile cylinders

Access Methods
App, Physical Key
Connectivity
2.4 GHz Wi-Fi, Bluetooth
Installation Type
Euro Profile Cylinder replacement
Color
White
Dimensions
2.24 × 2.24 × 2.28 inches
Weight
8.8 ounces

View on Amazon: Nuki Smart Lock Ultra White Euro Affiliate link

The Nuki Smart Lock Ultra is built for Euro Profile cylinders, not US deadbolts. It features built-in 2.4 GHz Wi-Fi and Matter support for direct network connection without a hub. You can control it via the app, Apple Home, or voice assistants. The unit measures 2.24 by 2.28 inches and weighs 8.8 ounces. It installs in under 15 minutes using the included universal cylinder. This model suits international properties or European-style doors requiring keyless entry.

Pros

  • Built-in 2.4 GHz Wi-Fi connectivity without a hub
  • Matter support for seamless smart home integration
  • Compatible with Apple Home, Google Assistant, and Alexa
  • Keyless access via iOS and Android app

Cons

  • Incompatible with standard US deadbolt locks
  • Designed exclusively for Euro Profile cylinders
  • Requires Nuki app for primary management

Good fit if

  • You have a Euro Profile cylinder
  • You want direct Wi-Fi connection without a hub
  • You use Matter-compatible smart home systems

Skip if

  • You have a standard US deadbolt lock
  • You need a lock for non-European doors
  • You prefer locks with physical keypads included

Verdict: Nuki Smart Lock Ultra Euro Profile is the right choice for owners of European-style doors who need direct Wi-Fi and Matter support. It does not fit US deadbolts.

Specifications side by side

Spec Nuki Smart Lock with Keypad 2 NFC Nuki Smart Lock Ultra White Euro
Access Methods not stated App, Physical Key
Connectivity Bluetooth, Wi-Fi, Matter over Thread 2.4 GHz Wi-Fi, Bluetooth
Installation Type Interior retrofit Euro Profile Cylinder replacement
Auto-Lock Delay Auto-Lock not stated
Fingerprint Capacity 20 not stated
User Code Capacity 200 not stated
Included Door Hardware Deadbolt, Keypad not stated
Access Method Keypad, Fingerprint, App Control not stated
Smart Home Compatibility Alexa, Google Assistant not stated
Color Silver and Black White
Application Home not stated
Special Features Auto Lock not stated
Dimensions 2.24 × 2.24 × 2.28 inches 2.24 × 2.24 × 2.28 inches
Weight 12 ounces 8.8 ounces
Model 221261 221272

Frequently asked questions

Does the Nuki Smart Lock Ultra work with US deadbolts?

No. The Nuki Smart Lock Ultra White Euro is designed specifically for European doors with Euro Profile cylinders. It does not fit standard US deadbolts. If you have a typical American door, you should look at the Nuki Smart Lock with Keypad 2 NFC instead, which is built for existing deadbolt owners.

What access methods does the Nuki Smart Lock with Keypad support?

You can unlock the Nuki Smart Lock with Keypad 2 NFC using a keypad, fingerprint, or app control. It also supports Auto Lock functionality. This model provides versatile entry options for renters who value flexible access methods while retaining their existing hardware.

Which Nuki model supports Matter connectivity?

The Nuki Smart Lock Ultra White Euro supports Matter. It also features Wi-Fi and Bluetooth connectivity. This makes it suitable for users who need direct Wi-Fi integration and Matter support for their smart home ecosystem.

Is there a fingerprint sensor on the Nuki Smart Lock Ultra?

The provided data does not list a fingerprint sensor for the Nuki Smart Lock Ultra White Euro. Its attributes focus on connectivity options like Wi-Fi, Bluetooth, and Matter. The Nuki Smart Lock with Keypad 2 NFC is the model that explicitly supports fingerprint access alongside keypad and app control.

How heavy is the Nuki Smart Lock with Keypad 2 NFC?

The Nuki Smart Lock with Keypad 2 NFC weighs 12 ounces. It measures 2.24 inches in width and length, with a height of 2.28 inches. The finish is Silver and Black. This compact size allows it to fit on standard US deadbolts.

Can I use Alexa with the Nuki Smart Lock Ultra?

The data confirms that the Nuki Smart Lock with Keypad 2 NFC is compatible with Alexa and Google Assistant. For the Nuki Smart Lock Ultra White Euro, the listed attributes highlight Wi-Fi, Bluetooth, and Matter support. You should verify specific voice assistant compatibility for the Ultra model through the manufacturer's technical specifications.

What is the model number for the white Nuki Smart Lock Ultra?

The model number for the Nuki Smart Lock Ultra White Euro is 221272. This unit weighs 8.8 ounces and measures 2.24 inches in width and length. It is designed for European doors with Euro Profile cylinders and features a white color finish.

See also