Door Locks · Head to head

Eufy FamiLock S3 Max vs Nuki Smart Lock Go

Full Smart Door Locks comparison in 2026

Updated June 2026
Data from Amazon and official Eufy and Nuki sites.
2026 verdict
Across the 2026 comparison, Nuki Smart Lock Go earns the nod over Eufy FamiLock S3 Max on the strength of price, warranty, and connectivity. What pushes it ahead is price, warranty, and connectivity, and integrations and lock/unlock system keeps the advantage from looking narrow. The only strong reason to choose Eufy FamiLock S3 Max is if rating, weather resistance, and doorbell is more important to you than the overall verdict. That is enough to make Nuki Smart Lock Go the better pick for most buyers.
vs
FeatureEufy FamiLock S3 MaxNuki Smart Lock GoWinner
Price$279.98€139.99Nuki Smart Lock Go
Rating4.44.0Eufy FamiLock S3 Max
Warranty18 months2 yearsNuki Smart Lock Go
Weather ResistanceIP65NOEufy FamiLock S3 Max
Connectivity2.4 GHz WiFi2.4 GHz WiFi, Bluetooth, Thread ProtocolNuki Smart Lock Go
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterNuki Smart Lock Go
Lock/Unlock SystemRemote, Passcode, Physical KeyRemote, Bluetooth, Passcode, Fingerprint, Physical KeyNuki Smart Lock Go
One-Time PasswordNOKeypad requiredNuki Smart Lock Go
Periodic PasswordNOKeypad requiredNuki Smart Lock Go
DoorbellYESNOEufy FamiLock S3 Max
Anti-peep PasswordNONOTie
Emergency FingerprintNONOTie

Frequently Asked Questions (FAQ)

Which is better overall: Eufy FamiLock S3 Max or Nuki Smart Lock Go?
Nuki Smart Lock Go has the stronger overall profile in this comparison, especially for price, warranty, and connectivity.
What is the biggest difference between Eufy FamiLock S3 Max and Nuki Smart Lock Go?
Price is one of the clearest differences: Eufy FamiLock S3 Max lists $279.98, while Nuki Smart Lock Go lists €139.99.
Which one looks better on price?
Eufy FamiLock S3 Max is listed at $279.98, while Nuki Smart Lock Go is listed at €139.99. Nuki Smart Lock Go (better spec).
Who should buy Eufy FamiLock S3 Max?
Choose Eufy FamiLock S3 Max if your priority is rating and weather resistance and that matters more than price.
Who should buy Nuki Smart Lock Go?
Choose Nuki Smart Lock Go if your priority is price and warranty and that matters more than rating.
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