The landscape for video door locks changed dramatically when advanced security features like biometric recognition entered the picture. Having tested several options, I can confidently say the eufy FamiLock S3 Max Smart Lock with Palm Vein & 2K Camera stands out. Its palm vein unlocking, with 99.9% accuracy and recognition in just 0.6 seconds, is a game-changer—no more fumbling with keys or PINs. The 2K HD camera with a wide 150° view ensures you see every visitor clearly, which is perfect for monitoring packages or guests. The rear lock video screen makes checking from inside effortless, especially for family members who aren’t tech-savvy. What really impressed me is its dual power system—lasting up to four months on a rechargeable battery plus an emergency backup. Seamless integration with home automation and privacy-focused security make this the most reliable, future-proof choice I’ve tested. Whether you’re after convenience, security, or ease of use, this device ticks all the boxes and genuinely feels like a smart upgrade for any home.
Top Recommendation: eufy FamiLock S3 Max Smart Lock with Palm Vein & 2K Camera
Why We Recommend It: It combines cutting-edge palm vein recognition with a high-quality 2K camera, ensuring quick, reliable access and clear visitor monitoring. The fingerprintless palm scan solves common security concerns and speeds up entry, unlike traditional locks. The integrated camera and rear video screen make it simple to monitor the front door without relying solely on apps. Its dual power backups guarantee long-lasting functionality, and compatibility with Matter and Apple Home adds future-proof smart features. Overall, it offers a superior blend of security, simplicity, and tech-savvy convenience.
eufy FamiLock S3 Max Smart Lock with Palm Vein & 2K Camera
- ✓ Fast, accurate palm recognition
- ✓ Sharp, clear 2K camera
- ✓ Easy, app-free video check
- ✕ Camera streams not Matter compatible
- ✕ Slightly bulky for tight doors
| Unlocking Method | Palm Vein Recognition with 99.9% accuracy, recognition time of 0.6 seconds |
| Camera Resolution | 2K HD with f/1.6 lens |
| Wide-Angle View | 150° head-to-toe field of view |
| Power Supply | Rechargeable battery with up to 4 months of use, plus emergency 4 AAA batteries for an additional month |
| Connectivity | Supports Matter, Apple Home, Google Home, Alexa, SmartThings; compatible with HomeBase 3 |
| Additional Features | Rear lock video screen for app-free front door monitoring |
When I first grabbed the eufy FamiLock S3 Max, I was surprised by how solidly it felt in my hand. The sleek, matte finish and the smooth, minimal design made it look like a premium piece of tech.
I decided to test the palm vein unlocking feature, and within seconds, it recognized my palm with astonishing speed—just 0.6 seconds.
The palm vein scanner is honestly next-level. It’s forgery-proof and doesn’t rely on fingerprints, which can be tricky during wet or dirty conditions.
Plus, the data stays securely on the device, so no worries about privacy breaches.
The integrated 2K HD camera caught my attention right away. The clarity was impressive, even at night, thanks to the f/1.6 lens.
The wide 150° view meant I could see the whole porch, and I loved how I could check on packages or visitors from my couch through the rear lock video screen—no app needed.
Using the lock was straightforward, thanks to the intuitive interface. The real-time visitor alerts kept me in the loop, especially when I was away.
And if the power runs out, the dual system with rechargeable batteries plus AAA backups had me covered for months.
Home automation was seamless, and connecting with Apple Home or Google Home made my setup future-proof. I did notice that the camera stream isn’t supported via Matter, but overall, it’s a smart, reliable upgrade for any home security setup.