Is the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) worth it?
The Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) is recommended with a 8.2/10 consensus score. Experts highlight palm-vein recognition reads over 50,000 data points and unlocks in 0.6 seconds at 99.9% accuracy, the same hard-to-spoof biometric as the s3 max for about 50 dollars less. and includes a 150-degree 2k hdr video doorbell and 16gb of local storage with no monthly fee, so you still see and record visitors.. Best for: Value buyers who want palm-vein entry plus a 2K doorbell without the interior screen, Households that prefer palm-vein privacy and check the camera feed on a phone.

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Eufy FamiLock S3 (Palm-Vein + 2K Doorbell)
Security
Expert consensus
How we scoreKey Features
- ✓ Palm-vein recognition, 50,000+ data points, 0.6 seconds unlock at 99.9% accuracy
- ✓ 150-degree 2K HDR video doorbell, 16GB local storage, no monthly fee
- ✓ ANSI/BHMA Grade 1 weatherproof build
- ✓ Matter support: Apple Home, Google, Alexa, SmartThings
- ✓ Two rechargeable batteries, up to 5 months, plus 4 AAA backup
- ✓ Stores palm-vein data for up to 50 family members
Best For
What Experts Agree On
What Experts Love
- ✓ Palm-vein recognition reads over 50,000 data points and unlocks in 0.6 seconds at 99.9% accuracy, the same hard-to-spoof biometric as the S3 Max for about 50 dollars less.
- ✓ Includes a 150-degree 2K HDR video doorbell and 16GB of local storage with no monthly fee, so you still see and record visitors.
- ✓ ANSI/BHMA Grade 1 weatherproof build with Matter support across Apple Home, Google, Alexa, and SmartThings.
- ✓ Two rechargeable batteries last up to 5 months with 4 AAA backup cells, and palm data stores for up to 50 family members.
Common Criticisms
- ✗ Drops the S3 Max's 4-inch interior screen, so you check the doorbell feed on your phone instead of at the door.
- ✗ Like the S3 Max it unlocks by palm-vein, not face, so it is not a true walk-up face-recognition lock.
Frequently Asked Questions
Is the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) worth it?
The Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) earns a 8.2/10 consensus score and is rated "Recommended". At $229.48, it is best for Value buyers who want palm-vein entry plus a 2K doorbell without the interior screen. It ranks among the top picks in its category.
How much does the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) cost?
The Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) is priced at $229.48. With a 8.2/10 score and a "Recommended" rating, that price represents fair value relative to the ~7.5/10 average for Security products. Prices shift often, so check the live figure before buying.
Who is the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) best for?
The Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) is best for Value buyers who want palm-vein entry plus a 2K doorbell without the interior screen, Households that prefer palm-vein privacy and check the camera feed on a phone. Experts rate it "Recommended" with a 8.2/10 consensus.
How does the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) compare to other Security options?
Among the Security products we have aggregated, the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) ranks above average with a 8.2/10 score. See our full category comparison for head-to-head details.
What smart home systems does the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) work with?
The Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) works with Amazon Alexa, Samsung SmartThings, Matter.
Does the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) need a hub or a subscription?
No mandatory subscription — the core features work without a monthly fee.
What are the best alternatives to the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell)?
If the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) ($229.48, 8.2/10) is not the right fit, the closest alternatives in Security are Eufy FamiLock S3 Max (Palm-Vein + Video), Philips Palm Vein WiFi Smart Lock 2-in-1 Doorbell. Compare them on price, ecosystem support, and expert consensus to find your match.
What are the pros and cons of the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell)?
The main strengths of the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell) are palm-vein recognition reads over 50,000 data points and unlocks in 0.6 seconds at 99.9% accuracy, the same hard-to-spoof biometric as the s3 max for about 50 dollars less. and includes a 150-degree 2k hdr video doorbell and 16gb of local storage with no monthly fee, so you still see and record visitors.. The most-cited downside is drops the s3 max's 4-inch interior screen, so you check the doorbell feed on your phone instead of at the door.. Overall, experts rate it "Recommended" with a 8.2/10 consensus score.
Decided on the Eufy FamiLock S3 (Palm-Vein + 2K Doorbell)?
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Sources & Methodology
Consensus score based on available data. See how we build consensus scores.
Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you.This is a consensus review — we did not test this product ourselves. Always verify current prices and availability before purchasing.
Independence notice: Smart Home Explorer is an independent publication. eufy and other product names, logos, and brands referenced on this page are the property of their respective owners and are used for identification purposes only. This review is not sponsored by, affiliated with, or endorsed by eufy or any other manufacturer named in this article.


