eufy FamiLock S3 Max Smart Lock
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
 amazon Sold by EufyHome | $299.99 | Mar 20, 2026, may have changed | Buy Now |
 Best Buy 15-day returns (in store too) · free return shipping · free shipping on $35+ | $329.99 | Jul 21, 2026, may have changed | Buy Now |
S swiftart | $719.98 | Mar 20, 2026, may have changed | Buy Now |
Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.
Pros
- •Straightforward installation and setup process.
- •Multifunctional device integrating smart lock, palm reader, doorbell, and security camera.
- •Intuitive and user-friendly app interface, suitable for all age groups.
- •Reliable key code feature and customizable auto-lock function.
- •Quick and generally effective customer service experience after initial issues.
- •Palm recognition works effectively for most users with around 90% success rate.
- •Backup key and keypad provide additional security options.
- •Excellent battery life and lock longevity.
- •Smart notifications and remote video access enhance security capabilities.
Cons
- •Palm vein recognition is inconsistent, with frequent failures.
- •Device struggles with connectivity and sometimes goes offline.
- •Notifications can be delayed or missed, impacting usefulness.
- •Video software suffers from decryption issues, affecting recording access.
- •Keyhole and emergency power plug cover don't fit securely.
- •Customer service responses were initially unhelpful.
- •Some users experienced reliability issues and required replacement units.
Bottom Line
The eufy FamiLock S3 Max Smart Lock offers a robust blend of features in a sleek package, combining multiple security functions. While it impresses with its user-friendly installation and integration, the palm vein recognition and connectivity issues can be a hindrance. With room for improvement in feature consistency and customer support, it's a compelling choice if you're keen on high-tech security solutions but comes with caveats you may need to navigate.
What Reviewers Are Saying
Customer Ratings
Based on 220 reviews from Amazon
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Discussion
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