# Nuki Smart Lock (4th generation)

Nuki Smart Lock (4th generation) matters because it is the baseline Nuki generation with direct Matter over Thread. It is mainly a discounted or already-owned option now that Smart Lock Go and the 5th-generation Pro exist.

Canonical page: https://matterhome.io/devices/nuki-smart-lock-4th-generation
Markdown page: https://matterhome.io/devices/nuki-smart-lock-4th-generation.md
Author: Matterhome Editorial Team
Author profile: https://matterhome.io/authors/matterhome-editorial-team
Edited and fact-checked by: JC Martinez
Editor profile: https://matterhome.io/authors/jc-martinez

## Device Facts

- Brand: Nuki
- Model: Smart Lock (4th generation)
- Product type: Matter-over-Thread Retrofit Smart Lock
- Category: Locks
- Connection: Matter over Thread
- Matter status: Nuki says Smart Locks starting with the 4th generation are fully Matter-enabled and support Matter over Thread.
- Launch date: 2023
- Thread border router required: Yes
- Brand hub required: No
- Typical price range: €189
- Markets: Europe, United Kingdom
- Review status: Compatibility guide
- Product image: https://matterhome.io/content-assets/devices/nuki-smart-lock-4th-generation/product.webp
- Product image alt text: Nuki Smart Lock 4th generation
- Product image source: https://media.crystallize.com/nuki-production/24/12/2/121/nuki-smart-lock.png

## Ecosystem Support

- Apple Home: Supported
- Google Home: Supported
- Alexa: Supported
- SmartThings: Supported
- Home Assistant: Supported

## Best For

- Existing owners moving a 4th-generation Nuki lock into Matter
- Discount buyers who confirm the exact generation before buying
- European retrofit doors with reliable Thread coverage nearby

## Skip If

- You are buying new and Smart Lock Go or Pro is close in price
- The listing does not clearly identify the 4th generation
- You need the smaller Ultra hardware

## Setup Notes

- Treat this as a legacy Nuki Matter model and compare current pricing against Smart Lock Go.
- Confirm cylinder and door compatibility before buying used or discounted stock.
- Update firmware in the Nuki app before Matter pairing.

## Known Limitations

- Current Nuki models may have better motors, power options, or accessory bundles.
- Matter lock features can vary by ecosystem.
- Advanced Nuki access features remain tied to Nuki's app and services.

## Pros

- Nuki's first non-Pro direct Matter-over-Thread generation
- Useful legacy option if available at a discount
- No Nuki bridge required for the Matter path
- Works with Nuki lock accessories

## Cons

- Legacy product beside the newer Go, Pro, and Ultra models
- Requires compatible European door hardware
- Thread border router is still required for Matter

## Sources

- https://nuki.io/en/products/legacy/smart-lock-4th-generation
- https://nuki.io/en/company/news/nuki-now-supports-matter
- https://media.crystallize.com/nuki-production/24/12/2/121/nuki-smart-lock.png

## A legacy Nuki Matter option

The 4th-generation Nuki Smart Lock is the point where the regular Nuki lock joined the Matter-over-Thread story. That makes it relevant for existing owners and for buyers looking at discounted stock, but it should not be treated as the obvious new purchase.

Current Nuki buyers should compare it against Smart Lock Go. If the price gap is small, the newer model is easier to recommend.

## Verify the generation

Do not assume every older Nuki lock has the same Matter path. Nuki's Matter support starts with the 4th-generation smart locks, so listings, used units, and old stock need to identify the generation clearly.

After that, the normal Nuki setup rules apply: confirm door fit, update through the Nuki app, make sure Thread reaches the entry, and then add the lock to your Matter ecosystem.

## Where it still makes sense

This model makes sense when you already own it or find it at a price that makes the legacy tradeoff acceptable. It is less compelling as a full-price purchase next to Go, Pro, or Ultra.