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Door Locks · Head to head

Eufy FamiLock E40 vs Eufy Video Smart Lock E330

Full Smart Door Locks comparison in 2026

Updated September 2026
Data from Amazon and official Eufy site.
2026 verdict
Eufy FamiLock E40 has the better all-around case than Eufy Video Smart Lock E330 in 2026, starting with rating, warranty, and weather resistance.
Eufy FamiLock E40
Winner
Eufy FamiLock E40
$299.99
Buy on Amazon USACheck price
Its strongest advantages show up in rating, warranty, and weather resistance, with connectivity and integrations helping widen the gap. Eufy Video Smart Lock E330 can still be the right pick, but only if price and battery life outweigh the wider strengths of Eufy FamiLock E40. That is enough to make Eufy FamiLock E40 the better pick for most buyers.
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FeatureEufy FamiLock E40Eufy Video Smart Lock E330Winner
Price$299.99$249.99Eufy Video Smart Lock E330
Rating4.44.1Eufy FamiLock E40
Warranty1.5 years1 yearEufy FamiLock E40
Weather ResistanceIP65IP53Eufy FamiLock E40
Battery Life6 months8 monthsEufy Video Smart Lock E330
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFiEufy FamiLock E40
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Home AssistantEufy FamiLock E40
Lock/Unlock SystemRemote, Bluetooth, Passcode, Fingerprint, Face Recognition, Physical KeyRemote, Passcode, Fingerprint, Apple Home Key, Physical KeyEufy FamiLock E40
One-Time PasswordYESYESTie
Periodic PasswordYESYESTie
Anti-peep PasswordYESYESTie
Emergency FingerprintNONOTie

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Eufy FamiLock E40
  • Eufy Video Smart Lock E330

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Frequently Asked Questions

Which is better overall: Eufy FamiLock E40 or Eufy Video Smart Lock E330?

Eufy FamiLock E40 has the stronger overall profile in this comparison, especially for rating, warranty, and weather resistance.

What is the biggest difference between Eufy FamiLock E40 and Eufy Video Smart Lock E330?

Price is one of the clearest differences: Eufy FamiLock E40 lists $299.99, while Eufy Video Smart Lock E330 lists $249.99.

Which one looks better on price?

Eufy FamiLock E40 is listed at $299.99, while Eufy Video Smart Lock E330 is listed at $249.99. Eufy Video Smart Lock E330 (better spec).

Who should buy Eufy FamiLock E40?

Choose Eufy FamiLock E40 if your priority is rating and warranty and that matters more than price.

Who should buy Eufy Video Smart Lock E330?

Choose Eufy Video Smart Lock E330 if your priority is price and battery life and that matters more than rating.

Full comparison table

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