Unlocking with a wave and watching the porch
- Palm vein unlock in about 0.6 seconds
- 2K camera with HDR and a wide 150 degree view
- Matter works, but camera streams stay in the eufy app
The eufy Security Video Smart Lock FamiLock S3 replaces your deadbolt with a lock that reads the veins in your palm. That recognition takes about 0.6 seconds, and the vein data stays on the lock rather than in the cloud. If you come home with full hands, or you've had enough of fumbling for keys, this is the job it's built for.
A 2K camera with an f/1.8 lens sits above the handle, and HDR helps it hold detail when the porch is backlit or dim. The view runs 150 degrees vertically and horizontally, so it catches more of the walkway and the spot where packages land. We'd consider it a sensible fit for a front door you use every day and want to see from your phone.
It also supports Matter, so it can join Apple Home, Google Home, Alexa or SmartThings alongside the eufy app. Camera streams don't travel over Matter right now, so treat the eufy app as the place you'll actually watch video.
What $249.99 means against the usual price
The lock is $249.99, which is $56.21 below the typical price over the last 90 days. That's an 18 percent difference, and it's a fair reason to move rather than wait if this is the lock you've picked.
| Offer detail | Recorded value |
|---|---|
| Amazon price | $249.99 |
| Customer rating | 4 |
| Customer reviews | 300 |
| Typical price over 90 days | $306.20 |
| Difference | $56.21 (18 percent) |
Power, sensors and where it goes
A 15,000mAh rechargeable battery is the main supply, rated for up to 4 months of use. Four AAA batteries serve as a backup and can add about a month if the main pack runs down. Before installing, check how you'll reach the charging port once the lock is on the door, because that's the routine you'll repeat.
PIR and radar sensors work together to cut false alerts by 95 percent, which matters on a street with passing traffic or moving trees. The lock is black and its model number is T85V0, so confirm the finish and the door prep before you commit.
If you want the eufy ecosystem's AI features, pair it with a HomeBase 3. It won't work with HomeBase 2. Check your existing hub before buying if you already own one.
When this lock is the wrong fit
Skip it if you need camera video routed through Matter, since streams don't pass that way today. It's also the wrong pick if you already run HomeBase 2 and don't plan to change hubs.
One last thing to settle at the door: confirm the lock's dimensions and mounting fit against your existing deadbolt cutout, since that's the detail that decides whether installation is straightforward.
Product details
| Model | T85V0 |
|---|---|
| Color | Black |
