Door Locks · Head to head

Eufy Smart Lock C220 vs Eufy Smart Lock E31

Full Smart Door Locks comparison in 2026

Updated July 2026
Data from Amazon and official Eufy site.
2026 verdict
Between Eufy Smart Lock E31 and Eufy Smart Lock C220, Eufy Smart Lock E31 is the better overall pick in 2026, leading on battery life, integrations, and One-Time password. Its biggest wins come from battery life, integrations, and One-Time password, and periodic password adds more confidence to the verdict. Eufy Smart Lock C220 still makes sense if price, rating, and weather resistance are your priority, but most buyers should still lean toward Eufy Smart Lock E31. That is why the final call still favors Eufy Smart Lock E31.
vs
FeatureEufy Smart Lock C220Eufy Smart Lock E31Winner
Price$109.99$134.99Eufy Smart Lock C220
Rating4.34.2Eufy Smart Lock C220
Weather ResistanceIP53NOEufy Smart Lock C220
Battery Life8 months14 monthsEufy Smart Lock E31
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterEufy Smart Lock E31
Lock/Unlock SystemRemote, Passcode, Fingerprint, Apple Home Key, Physical KeyRemote, Passcode, Fingerprint, Physical KeyEufy Smart Lock C220
One-Time PasswordNOYESEufy Smart Lock E31
Periodic PasswordNOYESEufy Smart Lock E31
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
Anti-peep PasswordYESYESTie
Emergency FingerprintNONOTie
DoorbellNONOTie

Frequently Asked Questions

Which is better overall: Eufy Smart Lock C220 or Eufy Smart Lock E31?

Eufy Smart Lock E31 has the stronger overall profile in this comparison, especially for battery life, integrations, and One-Time password.

What is the biggest difference between Eufy Smart Lock C220 and Eufy Smart Lock E31?

Price is one of the clearest differences: Eufy Smart Lock C220 lists $109.99, while Eufy Smart Lock E31 lists $134.99.

Which one looks better on price?

Eufy Smart Lock C220 is listed at $109.99, while Eufy Smart Lock E31 is listed at $134.99. Eufy Smart Lock C220 (better spec).

Who should buy Eufy Smart Lock C220?

Choose Eufy Smart Lock C220 if your priority is price and rating and that matters more than battery life.

Who should buy Eufy Smart Lock E31?

Choose Eufy Smart Lock E31 if your priority is battery life and integrations and that matters more than price.

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© 2026 Smart Home Compared
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