Nuki's 5th gen Pro is a go-to smart lock for Home Assistant. Matter over Thread (plus built-in Wi-Fi) means it talks directly to your network with no bridge or cloud in the middle. It clamps onto your existing cylinder, so installation is non-destructive. For a US single-cylinder deadbolt the model to buy is the separate Nuki Smart Lock (Deadbolt); the Pro itself is a European profile and round cylinder product. The price is steep, but you get a fully local smart lock.
Standout: Matter over Thread retrofit smart lock for European profile and round cylinders, with built-in Wi-Fi, no hub and no cloud required.
Notes last checked Sep 4, 2026.
Compatibility snapshot
Home AssistantgoodReliable local integration with minor caveats (a hub, manual config, or polling). Core function works locally.
Apple HomegoodWell supported, with only minor gaps.
Google HomegoodWell supported, with only minor gaps.
AlexagoodWell supported, with only minor gaps.
Works offlineyes
Setupmoderate
Extra hub neededno
Powerbattery
Local control facts
Home Assistant: matter integration, Local Push (home-assistant.io, checked Oct 10, 2026)
Matter: certified (csa-iot.org, checked Nov 6, 2026)