eufy Security Smart Lock FamiLock S3 Max with Palm Vein Recognition
$359.99 is above the middle of our record.
The middle price across the 23 days we have watched it, counting the days a limited-time deal was running, was $329.99. That is $30.00 less than today. It reached $279.99 at least once in that time, and the high was $359.99.
Today's price is $30.00 above its usual $329.99.
The lowest, $279.99 on October 6, was a deal only Prime members could buy at. The lowest anyone could pay was $299.99.
This describes the prices we recorded. It is not a forecast of where this one goes next.
Price at AmazonVerified
Price history
One line: the best price any tracked retailer charged, per day.
Price set by a third-party seller, not the retailer itselfLightning or limited-time dealDeal for Prime members only
sales rank — the line rises as it sells moreShaded stretches are sales, from our calendar.
| Price | Now | Lowest | Highest | Usual | Average | Days recorded |
|---|---|---|---|---|---|---|
| New | $359.99 | $279.99 on Oct 6 | $359.99 on Oct 9 | $329.99 | $326.95 | 23 |
Sales events
Next on the calendar: Black Friday, November 27. We keep checking this price through it and report here what it did.
What our record shows
- $30.00 more than the $329.99 it cost on October 8 — this price went up, not down.
Computed from our own checks at Amazon as of October 10. No line here uses a price a retailer told us about.
Where to buy
- Held for
- 1d
- Their 23-day low
- $279.99
- Checked
- 8h ago
Prices checked at least every 12 hours. “Held for” is how long that retailer has been charging this price. A hidden price is one we cannot re-confirm recently enough to publish.
We earn a commission on purchases. It never affects our rankings.
Tell me when it drops
A notification in this browser when the price falls. No email, no account, nothing to install.
A notification carries a button that stops that alert; blocking notifications for this site in your browser stops them all.
Other versions of this model
These are 33% apart, from $239.99 to $359.99. A gap that wide is a different specification rather than a different finish, whatever Amazon’s swatch calls it, so the prices are listed as they are and none is called the cheaper buy.
Palm Vein$239.99
Palm Vein + Video$349.99
Palm Vein + Video + Rear Screenthis page$359.99
Amazon’s own price for each, read through their API. Verified
What it is
5 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Color
- Black
- Weight
- 5.4 pounds
- Dimensions
- 7.87 × 3.07 × 1.22 inches
- Model
- E85V0
- Released
- April 2025
Cheaper in Smart Home, and what changes
Things we track on the same shelf for at least 10% less than $359.99, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.
SCHLAGEEncode Smart WiFi Deadbolt Lock with Century Trim, Matte Black$229.00 at Amazon $130.99 lessWeight: 3.4 pounds instead of 5.4 poundsDimensions: 5 × 3 × 0.9 inches instead of 7.87 × 3.07 × 1.22 inches
SCHLAGEEncode Plus Smart WiFi Deadbolt Lock, Tap to Unlock, Matte Black$299.80 at Amazon $60.19 lessWeight: 3.4 pounds instead of 5.4 poundsDimensions: 5 × 3 × 0.9 inches instead of 7.87 × 3.07 × 1.22 inches
AqaraUWB Smart Lock U400, Apple Home Key, Fingerprint Deadbolt, Black$219.99 at Amazon $140.00 lessDimensions: 7 × 4.2 × 3 inches instead of 7.87 × 3.07 × 1.22 inches
Every change we recorded
Every row is a price we saw change. We write one only when a price actually moves, so a gap here means the price held.
| When | Retailer | Price | Change |
|---|---|---|---|
| · 1d ago | Amazon | $359.99 | +$30.00 |
| · 2d ago | Amazon | $329.99 | +$50.00 |
| · 2d ago | Amazonused | $299.99 | first seen |
| · 4d ago | Amazon | $279.99 | −$50.00 |
| · 17d ago | Amazon | $329.99 | +$30.00 |
| · 18d ago | Amazon | $299.99 | −$30.00 |
| · 22d ago | Amazon | $329.99 | first seen |
Others we track in Smart Home
See all Smart Home prices
GenieStealthDrive Connect Smart Belt Drive Garage Door Opener, 7155-TKV$339.99 · low $244.491 retailer · 21 recorded prices- SCHLAGEEncode Plus Smart WiFi Deadbolt Lock, Tap to Unlock, Matte Black$299.801 retailer · 5 recorded prices
Philips HueSmart Retrofit Recessed 5/6 Inch LED Downlight, 4-Pack$241.99 · low $219.991 retailer · 3 recorded prices
Philips HueSigne Smart Color Changing Floor Lamp, 1-Pack, Black$233.191 retailer · 4 recorded prices- SCHLAGEEncode Smart WiFi Deadbolt Lock with Century Trim, Matte Black$229.00 · low $183.181 retailer · 3 recorded prices
PHILIPSWi-Fi Front Lock Set, Smart Keypad Deadbolt Lock with 2 Handles$220.49 · low $152.991 retailer · 12 recorded prices
$359.99
at Amazon · we earn a commission