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Door Locks · Head to head

Nuki Smart Lock Go vs ULTRALOQ Bolt SE

Full Smart Door Locks comparison in 2026

Updated September 2026
Data from Amazon and official Nuki and ULTRALOQ sites.
2026 verdict
ULTRALOQ Bolt SE is the better value here and the more self-sufficient lock, costing less while including a fingerprint scanner for up to 50 prints, a keypad for up to 50 codes, permanent, scheduled and temporary eKeys, built-in Wi-Fi for its own app and Matter over Thread for Apple Home, Alexa, Google Home and SmartThings, plus two emergency keys and a claimed 18 months on four AA cells. It is also better received by owners. Nuki Smart Lock Go answers with a 2 year warranty against 18 months of electronics cover, and with a retrofit design that mounts over a European cylinder in minutes without drilling, keeping your key and making it renter-friendly, with hands-free auto-unlock, geolocation and Matter support. Its weaknesses are the missing hardware, since keypad, fingerprint and NFC are separate accessories, a paid add-on for full remote access, and owner reports of motor failures in the first year. Choose Nuki Smart Lock Go for a European cylinder you cannot replace; choose ULTRALOQ Bolt SE for a complete fingerprint deadbolt.
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FeatureNuki Smart Lock GoULTRALOQ Bolt SEWinner
Rating3.84.3ULTRALOQ Bolt SE
Warranty2 years18 monthsNuki Smart Lock Go
One-Time PasswordKeypad requiredYESULTRALOQ Bolt SE
Periodic PasswordKeypad requiredYESULTRALOQ Bolt SE
Weather ResistanceNONOTie
Connectivity2.4 GHz WiFi, Bluetooth, Thread Protocol2.4 GHz WiFi, Bluetooth, Thread ProtocolTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Lock/Unlock SystemRemote, Bluetooth, Passcode, Fingerprint, Physical KeyRemote, Bluetooth, Passcode, Fingerprint, Physical KeyTie
Anti-peep PasswordNONOTie
Emergency FingerprintNONOTie
DoorbellNONOTie

Frequently Asked Questions

Which is better overall, the ULTRALOQ Bolt SE or the Nuki Smart Lock Go?

ULTRALOQ Bolt SE. It includes fingerprint and keypad entry, built-in Wi-Fi, Matter over Thread and a claimed 18 months of battery life, at a lower price and with a better owner reception. Nuki Smart Lock Go wins on warranty, with 2 years against 18 months of electronics cover.

Do they suit the same doors?

No. Nuki Smart Lock Go is a retrofit that clamps over a European cylinder without drilling, which suits renters and EU-style doors. ULTRALOQ Bolt SE is a deadbolt replacement, so it targets standard US-style doors and cannot mount over an existing cylinder.

Which one includes a keypad or fingerprint reader?

ULTRALOQ Bolt SE has both built in, storing up to 50 fingerprints and 50 codes on a glove-friendly keypad. Nuki Smart Lock Go has neither on the lock itself: a keypad is a separate accessory, and fingerprint requires the Keypad 2 accessory.

What does each need for remote access?

ULTRALOQ Bolt SE has built-in Wi-Fi for the ULTRALOQ app and uses Matter over Thread for the major ecosystems, so a Thread border router is the only extra. Nuki Smart Lock Go has Wi-Fi and Bluetooth, but full remote and smart-home access requires a paid one-time add-on.

How do the batteries compare?

ULTRALOQ Bolt SE is rated at 18 months on four AA cells, though some owners report much shorter life. Nuki Smart Lock Go also uses four AA batteries but does not publish a rated life, and some owners report cells swelling or leaking.

Who should buy the Nuki Smart Lock Go?

Renters and owners of European cylinder doors who want to keep the existing key and add auto-lock, hands-free auto-unlock and Matter support with a 2 year warranty. If you have a standard deadbolt and want fingerprint entry included, ULTRALOQ Bolt SE is the better buy.

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