6% OFF
$404.18
$429.98
Updated November 2026
Data from the official Eufy site.
2026 verdict
For most buyers in 2026, Eufy Video Smart Lock S330 is the safer pick over Eufy FamiLock S3 because of price, rating, and Lock/Unlock system.
Its strongest advantages show up in price, rating, and Lock/Unlock system, with its broader overall balance helping widen the gap. The only strong reason to choose Eufy FamiLock S3 is if warranty and integrations are more important to you than the overall verdict. As a general recommendation, Eufy Video Smart Lock S330 comes out on top.
Connectivity
- Wi-Fi 2.4 GHz
vs
Winner
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Eufy FamiLock S3 | Eufy Video Smart Lock S330 | Winner |
|---|---|---|---|
| Price | $404.18 | $349.99 | Eufy Video Smart Lock S330 |
| Rating | 4.0 | 4.1 | Eufy Video Smart Lock S330 |
| Warranty | 1.5 years | 1 year | Eufy FamiLock S3 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Home Assistant | Eufy FamiLock S3 |
| Lock/Unlock System | Remote, Passcode, Physical Key | Remote, Passcode, Fingerprint, Apple Home Key, Physical Key | Eufy Video Smart Lock S330 |
| Weather Resistance | IP65 | IP65 | Tie |
| Battery Life | 4 months | 4 months | Tie |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi | Tie |
| One-Time Password | YES | YES | Tie |
| Periodic Password | YES | YES | Tie |
| Anti-peep Password | YES | YES | Tie |
| Emergency Fingerprint | NO | NO | Tie |
6% OFF
$404.18
$429.98
- + Warranty: 1.5 years
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Price: $404.18 vs $349.99
- - Rating: 4.0 vs 4.1
Winner
$349.99
- + Price: $349.99
- + Rating: 4.1
- + Lock/Unlock System: Remote, Passcode, Fingerprint, Apple Home Key, Physical Key
- - Warranty: 1 year vs 1.5 years
- - Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
Frequently Asked Questions
Which is better overall: Eufy FamiLock S3 or Eufy Video Smart Lock S330?
Eufy Video Smart Lock S330 has the stronger overall profile in this comparison, especially for price, rating, and Lock/Unlock system.
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 $404.18, while Eufy Video Smart Lock S330 lists $349.99.
Which one looks better on price?
Eufy FamiLock S3 is listed at $404.18, while Eufy Video Smart Lock S330 is listed at $349.99. Eufy Video Smart Lock S330 (better spec).
Who should buy Eufy FamiLock S3?
Choose Eufy FamiLock S3 if your priority is warranty and integrations and that matters more than price.
Who should buy Eufy Video Smart Lock S330?
Choose Eufy Video Smart Lock S330 if your priority is price and rating and that matters more than warranty.
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