Nuki Smart Lock Ultra vs ULTRALOQ Bolt SE

ULTRALOQ Bolt SE on value: fingerprint and keypad entry included, built-in Wi-Fi, Matter over Thread and a claimed 18 months of battery life, for far less money. Nuki Smart Lock Ultra is better received and carries a 2 year warranty against 18 months of electronics cover.

No. Nuki Smart Lock Ultra is a retrofit for European cylinders that keeps your key and adapts to UK, US and EU door thicknesses, but it is not for US deadbolts. ULTRALOQ Bolt SE replaces a standard deadbolt entirely.

ULTRALOQ Bolt SE has both built in, with 50 fingerprints and 50 codes stored on the lock. Nuki Smart Lock Ultra has neither on the lock itself, so codes need the Nuki keypad accessory and fingerprint needs the Keypad 2, both bought separately.

Nuki Smart Lock Ultra uses a built-in rechargeable battery rated at six months with no backup cells. ULTRALOQ Bolt SE uses four replaceable AA batteries rated at 18 months, though several owners report considerably less in practice.

Both cover the major platforms. Nuki Smart Lock Ultra offers Matter over Thread with Apple HomeKit, Google, Alexa, SmartThings and Home Assistant, and built-in Wi-Fi with no add-ons. ULTRALOQ Bolt SE pairs its own Wi-Fi app with Matter over Thread for Apple Home, Alexa, Google Home and SmartThings.

Owners of European cylinder doors who want the fastest, most compact Nuki with a rechargeable battery, hands-free unlocking, no paid add-ons and a 2 year warranty, and who are happy to add a keypad accessory. Otherwise ULTRALOQ Bolt SE covers more for much less.