Nuki Smart Lock Go vs Nuki Smart Lock Ultra

Nuki Smart Lock Go wins on value: the same retrofit design, auto-unlock and platform support at a fraction of the price. Nuki Smart Lock Ultra earns the higher rating as the brand's best-engineered lock, faster, smaller and more premium.

Engineering tier. The Ultra brings Nuki's fastest motor, most compact housing, rechargeable battery, built-in Wi-Fi and color options. The Go delivers the same core function on four AA cells with fewer refinements and a remote-access add-on cost.

Yes, both work with Matter (Thread border router required), Apple HomeKit, Google Home, Alexa, SmartThings and Home Assistant, and both auto-lock and auto-unlock by geolocation. Keypad and fingerprint entry are accessories on each.

The Nuki Smart Lock Ultra draws very few complaints beyond minor install quirks. The Nuki Smart Lock Go has a notable minority reporting motor errors within the first year, cushioned by the 2-year warranty and well-regarded support.

Choose Nuki Smart Lock Go to try smart locking on a European door cheaply: quick install, hands-free entry and every major platform, accepting AA power and add-on costs.

Choose Nuki Smart Lock Ultra for the definitive Nuki: the fastest, quietest, best-rated hardware with rechargeable power and built-in Wi-Fi, ideal for a heavily used front door.