Nuki Smart Lock Pro vs ULTRALOQ Bolt SE

ULTRALOQ Bolt SE, thanks to a much lower price, built-in fingerprint and keypad entry, a claimed 18 months of battery life and Matter over Thread with built-in Wi-Fi. Nuki Smart Lock Pro wins on warranty, offering 2 years against 18 months of electronics cover.

No. Nuki Smart Lock Pro is a retrofit for European cylinders, needing a protruding cylinder with a key usable from both sides, and it does not fit US deadbolts. ULTRALOQ Bolt SE replaces a standard deadbolt outright.

Only ULTRALOQ Bolt SE, with an AI-driven scanner storing up to 50 fingerprints alongside 50 keypad codes. Nuki Smart Lock Pro requires the separate Keypad 2 accessory for fingerprint, and a keypad accessory for codes, which adds noticeably to the total cost.

Nuki Smart Lock Pro uses a built-in rechargeable pack rated at six months, with no battery backup. ULTRALOQ Bolt SE uses four replaceable AA cells rated at 18 months, though several owners report shorter real-world life than the claim.

Both cover the major ecosystems. Nuki Smart Lock Pro has built-in Wi-Fi and supports Matter, Apple HomeKit, Google, Alexa, SmartThings and Home Assistant. ULTRALOQ Bolt SE pairs built-in Wi-Fi for its own app with Matter over Thread for Apple Home, Alexa, Google Home and SmartThings.

Owners of European cylinder doors who want a premium retrofit that keeps the original key, with a rechargeable battery, hands-free unlocking, no paid add-ons for remote access and a 2 year warranty. For a US deadbolt with fingerprint entry included, ULTRALOQ Bolt SE is the better value.