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‎eufy Security

eufy FamiLock S3 Smart Lock With Palm Vein Recognition - Keyless Entry Door Lock for Front Door, 3-in-1 Wi-Fi Keypad Deadbolt+ 2K HDR Camera+ Doorbell, ANSI/BHMA Grade 1, Motion Sensor, No Monthly Fee Palm Vein + Video

4.3
Based on 338 reviews
Real-World Testing
30 days of real-world testing
Recently Updated
Updated Nov 17, 2025

Technical Specifications

Complete product details

Brand
‎eufy Security
Special Feature
‎2K Full HD Head-to-toe View, Auto-Lock, DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms
Lock Type
‎Deadbolt
Item dimensions L x W x H
‎3.07 x 1.22 x 7.87 inches
Style
‎Palm Vein + Video
Color
‎Black
Number of Pieces
‎1
Included Components
‎Interior Assembly, Rechargeable Battery & AAA Batteries x 4, Exterior Assembly, Physical Keys, Deadbolts & Deadbolts Screws
Controller Type
‎Apple HomeKit, Amazon Alexa, SmartThings, iOS, Android
Shape
‎Rectangular
Item Weight
‎2.45 Kilograms
Control Method
‎App
UPC
‎194644232672
Model Name
‎T85V01Y1
Manufacturer
‎eufy
Part Number
‎T85V0
Item Weight
‎5.39 pounds
Product Dimensions
‎3.07 x 1.22 x 7.87 inches
Item model number
‎T85V0
Batteries
‎4 AAA batteries required. (included)
Power Source
‎Battery Powered
Installation Method
‎Self-Adhesive
Special Features
‎2K Full HD Head-to-toe View, Auto-Lock, DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms
Batteries Included?
‎Yes
Batteries Required?
‎Yes
Battery Cell Type
‎Lithium Ion
ASIN
B0DTHVNNXQ
Customer Reviews
4.3 4.3 out of 5 stars 338 ratings 4.3 out of 5 stars
Best Sellers Rank
#10,523 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #55 in Deadbolts
Date First Available
April 14, 2025
Brand
eufy Security
Special Feature
2K Full HD Head-to-toe View, Auto-Lock, DualPower System, Wave to unlock with Palm, Works with Smart Home Platforms See more
Lock Type
Deadbolt
Item dimensions L x W x H
3.07 x 1.22 x 7.87 inches
Style
Palm Vein + Video

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About the Author

Expert analysis by Victor Lorne

Victor Lorne

Victor Lorne

Expert Reviewer

Associate Editor

Victor spotlights small makers and practical upgrades at Review Atlas: hand‑thrown mugs, custom shelving, and clever storage that transforms tight spaces. He cares about finish quality, hardware, and the story of how things are made. His approachable guides blend handmade character with everyday durability.

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How We Tested This Product

Our rigorous, independent testing process

Testing Period
30 days
Tested By
Victor Lorne

Our Testing Process

  • We purchase all products at full retail price to ensure unbiased testing
  • Products are tested in real-world conditions matching everyday use
  • Our experts conduct both objective measurements and subjective evaluations
  • Reviews are regularly updated as new products enter the market
  • Tested according to our Tools & Home Improvement testing methodology
Last updated: November 17, 2025
Independently tested and reviewed