Nuki Smart Lock Ultra

Quick verdict

The Ultra is Nuki's design statement. Noticeably slimmer and more refined than the Pro. Under the hood, it offers the same Matter over Thread local control that makes Nuki locks excellent for Home Assistant. The question is whether the sleeker form factor justifies the price jump over the already-capable Pro. If aesthetics matter to you and you have a European cylinder lock, this is the best-looking smart lock you can get with local control.

Standout: Nuki's slimmest smart lock with flagship design, Matter over Thread and zero cloud dependency.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• ultra-slim design is significantly smaller and sleeker than the Pro model
• Matter over Thread provides fully local control with no hub or bridge needed
• premium build quality befitting Nuki's flagship lock

Reasons to hesitate

• most expensive Nuki lock with flagship pricing to match the flagship design
• European cylinder locks only, not for US deadbolt doors
• newer model with less community feedback compared to the established Pro line

Best for

• design-conscious European smart home users who want the slimmest possible lock
• Home Assistant users who prioritize aesthetics alongside local Matter control

Avoid if

• the Pro model meets your needs. The Ultra's main advantage is the slimmer design
• you are outside Europe or have non-cylinder door hardware

Privacy and local-control notes

Fully local via Matter over Thread. Nuki cloud is optional. No account required for core lock functionality.

Home Assistant support: supported · integration path: Matter.

Buying reality check

Price notes: Top-tier pricing even for Nuki. The premium is mostly for the ultra-slim industrial design.

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