Door Locks · Head to head

Eufy FamiLock S3 vs Eufy Video Smart Lock S330

Full Smart Door Locks comparison in 2026

Updated September 2026
Data from Amazon and official Eufy site.
2026 verdict
For most buyers in 2026, Eufy FamiLock S3 is the safer pick over Eufy Video Smart Lock S330 because of price, warranty, and integrations.
Eufy FamiLock S3
Winner
Eufy FamiLock S3
$319.99$349.999% OFF
Buy on Amazon USACheck price
Its strongest advantages show up in price, warranty, and integrations, with its broader overall balance helping widen the gap. The only strong reason to choose Eufy Video Smart Lock S330 is if Lock/Unlock system is more important to you than the overall verdict. As a general recommendation, Eufy FamiLock S3 comes out on top.
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FeatureEufy FamiLock S3Eufy Video Smart Lock S330Winner
Price$319.99$349.99Eufy FamiLock S3
Warranty1.5 years1 yearEufy FamiLock S3
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Home AssistantEufy FamiLock S3
Lock/Unlock SystemRemote, Passcode, Physical KeyRemote, Passcode, Fingerprint, Apple Home Key, Physical KeyEufy Video Smart Lock S330
Rating4.14.1Tie
Weather ResistanceIP65IP65Tie
Battery Life4 months4 monthsTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
One-Time PasswordYESYESTie
Periodic PasswordYESYESTie
Anti-peep PasswordYESYESTie
Emergency FingerprintNONOTie
Winner
Eufy

Eufy FamiLock S3

9% OFF
$319.99
$349.99
Buy on Amazon USACheck price
  • + Price: $319.99
  • + Warranty: 1.5 years
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Lock/Unlock System: Remote, Passcode, Physical Key vs Remote, Passcode, Fingerprint, Apple Home Key, Physical Key

Frequently Asked Questions

Which is better overall: Eufy FamiLock S3 or Eufy Video Smart Lock S330?

Eufy FamiLock S3 has the stronger overall profile in this comparison, especially for price, warranty, and integrations.

What is the biggest difference between Eufy FamiLock S3 and Eufy Video Smart Lock S330?

Price is one of the clearest differences: Eufy FamiLock S3 lists $319.99, while Eufy Video Smart Lock S330 lists $349.99.

Which one looks better on price?

Eufy FamiLock S3 is listed at $319.99, while Eufy Video Smart Lock S330 is listed at $349.99. Eufy FamiLock S3 (better spec).

Who should buy Eufy FamiLock S3?

Choose Eufy FamiLock S3 if your priority is price and warranty and that matters more than Lock/Unlock system.

Who should buy Eufy Video Smart Lock S330?

Choose Eufy Video Smart Lock S330 if your priority is Lock/Unlock system and that matters more than price.

Full comparison table

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