eufy 3-in-1 Smart Locks: Camera, Doorbell and Keyless Entry

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Replacing traditional front door hardware often forces homeowners to juggle separate security gadgets, from standalone battery chimes and video doorbells to motorized electronic deadbolts. Choosing an integrated eufy 3 in 1 smart lock resolves this clutter by combining clear video surveillance, two-way doorbell communication, and biometric keyless entry into a single exterior deadbolt assembly. For families coordinating school arrivals, package drop-offs, and guest visits, combining these daily tasks into one piece of hardware streamlines entrance routines and eliminates the need to cross-check multiple phone apps just to see who unlocked the door.

The brand organizes its entry hardware across several distinct technical tiers, making a thorough eufy smart lock comparison essential before deciding which eufy lock to buy. At the core of the line sit all-in-one deadbolts equipped with fingerprint sensors, wide-angle 2K cameras, and rechargeable battery packs, some featuring independent internal memory while others rely on plug-in Wi-Fi chimes. Further up the spectrum, advanced models incorporate touchless palm vein sensors, radar motion detection, and dedicated indoor display screens, while camera-free smart deadbolts focus strictly on multi-method locking alongside a standalone eufy door lock with camera system.

eufy Video Smart Locks Lineup at a Glance

The Models in Detail

01 eufy Security Video Smart Lock E330 All-in-One Smart Lock with 2K HD Camera

Check price on Amazon 4.1 out of 5 — average from Amazon buyers

Best for: Weather-exposed doors needing expandable chime storage

Pros

• IP65 weather resistance
• Expandable storage up to 128GB
• BHMA certified build
• 10,000 mAh battery

Cons

• MicroSD card not included
• No built-in indoor screen

Best for: Smart homes requiring touchless palm biometrics

Pros

• 6-second palm vein unlocking
• Dual battery backup system
• Ultra-wide 180-degree view
• Matter and Apple Home support

Cons

• No rear video screen
• Taller lock body

Best for: Busy households wanting an included indoor chime

Pros

• Included indoor chime
• 2K HD camera
• 10,000 mAh rechargeable battery
• Five unlocking options

Cons

• Single power cell
• Lacks palm vein sensor

Best for: Self-contained front doors needing built-in storage

Pros

• Built-in 8 GB storage
• Sharp 2K f/1.6 camera
• 10,000 mAh battery
• Rapid fingerprint sensor

Cons

• No plug-in chime included
• Non-expandable internal memory

The eufy Security Video Smart Lock E330 brings together a fast fingerprint scanner, an integrated video doorbell, and a 2K HD camera into a unified deadbolt package. Its optical system utilizes an f/1.6 lens designed for enhanced clarity and night visibility, ensuring you capture visitor faces and porch activity without grainy distortion. Storing footage locally on 8 GB of internal memory, the eufy e330 smart lock eliminates reliance on external recording bridges or extra wall plugs to preserve your visitor events.

Everyday operation revolves around five distinct access methods, allowing family members to unlock the door using the fingerprint sensor, the eufy Security mobile app, physical backup keys, the integrated keypad, or hands-free voice commands via Alexa and Google Assistant. Remote connectivity functions directly through your home Wi-Fi network without third-party hubs, while the motorized deadbolt engages automatic locking routines once the door closes. All operational functions draw power from a single 10,000 mAh rechargeable battery pack.

This model is an exceptional fit for households wanting an all-in-one entrance solution that stores recorded clips completely onboard without installing auxiliary base stations inside the living room. It yields to the S330 variants if you require an included physical chime for loud indoor ringing, and to the FamiLock series if your priority is hands-free biometric palm scanning.

02 eufy Security Video Smart Lock S330 Advanced 3-in-1 Triple Security—Video Smart Lock S330 integrates rapid

Check price on Amazon 4.7 out of 5 — average from Amazon buyers

Identified by model number T8530, the eufy Security Video Smart Lock S330 integrates rapid fingerprint recognition with a sharp 2K HD camera and an electronic doorbell directly on the exterior plate. The system provides five convenient unlocking options, including biometric touch, keypad entry, manual keys, mobile app controls, and voice assistant pairing. Engineered for front door security, the hardware replaces conventional deadbolt mechanisms with a Wi-Fi-connected motorized bolt.

A key practical feature of this package is the included interior chime unit, which plugs into an indoor electrical outlet to sound immediate alerts when visitors ring the bell outside. Continuous power is delivered by a 10,000 mAh rechargeable battery that manages the video sensor, motorized bolt throws, and continuous wireless connectivity. Through the eufy Security app, homeowners receive prompt push notifications when motion is detected or when guests approach the entrance.

This version of the eufy video smart lock s330 suits busy family homes where household members want immediate auditory notifications across the living space rather than relying purely on smartphone vibrate alerts. It gives way to the FamiLock S3 Max for users seeking integrated interior video screens or touchless palm vein biometric technology.

03 eufy Security Video Smart Lock FamiLock One Big Battery Covers Everything

Check price on Amazon 4.3 out of 5 — average from Amazon buyers

Stepping forward into touchless authentication, the eufy Security Video Smart Lock FamiLock, also designated as model T85V0, replaces standard fingerprint contact with advanced palm vein recognition. Scanning subsurface vein patterns in approximately 0.6 seconds, the forgery-resistant sensor authenticates users based on internal vascular geometry and keeps all biometric data encrypted locally. Its optics boast a 2K HD camera with an f/1.8 lens, HDR optimization, and an ultra-wide viewing angle spanning 150 degrees vertical, 150 degrees horizontal, and 180 degrees diagonally to eradicate blind spots.

Power management is structured around a dual-tier system comprising a primary 15,000 mAh rechargeable lithium battery capable of lasting up to four months, accompanied by four AAA backup batteries that supply an extra month of emergency deadbolt operation. The unit also deploys combined PIR and radar sensors that cut false motion alerts by 95 percent. Furthermore, the eufy familock s3 provides native Matter support, linking smoothly into Apple Home, Google Home, SmartThings, Alexa, and eufy HomeBase 3 setups.

This lock is ideally suited for modern smart home environments that demand seamless multi-platform automation alongside touchless biometrics that remain dependable even when hands are damp or dirty. Maintaining proper eufy door lock battery performance is simplified by the dual power reserve, though users who prefer visual confirmation on the back of the door may prefer the S3 Max model.

04 eufy FamiLock S3 Max Advanced Security with 99.99999% Accuracy

Check price on Amazon 4.5 out of 5 — average from Amazon buyers

Best for: Families wanting interior door screen monitoring

Pros

• Rear lock video screen
• HomeBase 3 included
• 1-second palm vein reader
• Dual power supply setup

Cons

• No Matter video streaming
• Larger interior footprint

Engineered as an advanced front door centerpiece, the eufy FamiLock S3 Max pairs with the bundled HomeBase S380 (HomeBase 3) to deliver comprehensive surveillance and access control. Biometric authentication relies on palm vein recognition operating in just 0.1 seconds with a rated accuracy of 99.99999 percent, safely saving vein templates directly on the hardware. Visual capture is handled by a 2K HD camera featuring an f/1.6 lens, HDR processing, and a 150-degree head-to-toe viewing angle specifically calibrated for package monitoring on the porch.

A distinctive innovation on the eufy familock s3 max is the built-in Rear Lock Video Screen mounted on the interior door assembly. This integrated monitor allows residents to check who is outside simply by glancing at the inside deadbolt housing, eliminating the need to unlock a smartphone or open an app. The device features a dual power setup, operating for up to four months on its rechargeable battery pack while holding four AAA emergency cells in reserve. Note that while Matter connectivity links into smart systems, camera streaming via Matter is not currently supported and full ecosystem compatibility is anticipated by June.

This premium system is built for residences with young children or senior family members who benefit from verifying visitors directly on the physical door screen. It yields to simpler standalone models like the E330 if you have standard deadbolt spacing without room for an interior screen or if you do not want an external HomeBase 3 unit connected to your home network.

05 eufy Security Video Smart Lock S330 Advanced 3-in-1 Triple Security—Video Smart Lock S330 integrates rapid

Check price on Amazon 4.7 out of 5 — average from Amazon buyers

The eufy Security Video Smart Lock S330 with chime combines five-way entry, a 2K HD video doorbell, and motorized deadbolt security inside an exterior casing built for tough environmental resistance. Certified by the BHMA and carrying an IP65 water-resistant rating, this hardware is engineered to withstand extreme exterior weather conditions across a temperature span from -22°F to 158°F (-30°C to 70°C). Quick recognition comes courtesy of its rapid biometric fingerprint sensor, supported by keypad pin codes, mobile app control, voice assistants, and traditional physical keys.

Supplied with an interior plug-in Chime, this bundle provides expandable local video storage supporting microSD cards up to 128 GB (microSD card not included in the package). The chime serves as a wireless bridge that stabilizes Wi-Fi connectivity to the door while reducing power drain on the lock’s 10,000 mAh rechargeable battery during clip playback. Installation conforms to standard North American deadbolt boreholes and backset measurements, assembling in roughly 15 minutes without requiring additional door drilling.

This specific S330 bundle matches homes exposed to driving rain, snow, or direct sunlight where IP65 protection is mandatory and users want local, expandable video recording via a memory card slot. It hands over the advantage to the FamiLock lineup if your family prefers touchless vein recognition over touch-based fingerprint scanning.

06 eufy Security Smart Lock C220 With 8 AA batteries, Smart Lock C220 runs around 8 months

Check price on Amazon 4.6 out of 5 — average from Amazon buyers

Best for: Doors already equipped with separate doorbells

Pros

• 8-month battery life
• Apple Watch unlock support
• Self-learning AI fingerprint
• Drill-free 15-minute install

Cons

• No integrated camera lens
• Uses 8 AA batteries

Departing from integrated optics, the eufy Security Smart Lock C220 focuses purely on rapid biometric deadbolt access without incorporating an exterior camera lens. The unit utilizes a self-learning AI fingerprint reader that unlocks in under one second, refining its matching algorithm with every press. Unlocking versatility extends across six methods: fingerprint recognition, keypad codes, the eufy Security app, manual keys, voice control via Alexa and Google Assistant, and wrist-triggered entry via Apple Watch.

Power is supplied by eight included AA alkaline batteries, yielding approximately eight months of standard daily use before replacement is necessary. Durability is validated by BHMA Grade 3 certification, having passed over 100,000 locking cycles, alongside an IP53 water-resistance rating and an abnormal entry attempt alarm. Built-in Wi-Fi enables remote app controls without external bridge modules, and the deadbolt integrates into the broader brand ecosystem to trigger synchronized actions alongside an existing eufy doorbell and camera bundle.

The eufy c220 smart lock is designed specifically for side entries, interior garage access doors, or properties that already feature a separate video doorbell and only require a secure, long-lasting smart deadbolt. If your objective is a consolidated 3-in-1 device that captures porch video and rings visitors from a single mounting hole, you should consider the E330 or S330 video deadbolts instead.

Matching a Model to Your Setup

• Porches without separate doorbells: The eufy Security Video Smart Lock E330 delivers complete surveillance, 8 GB onboard storage, and multi-method keyless entry without requiring any auxiliary chime plugs or indoor bridge accessories.
• Homes wanting audible whole-house rings: The eufy Security Video Smart Lock S330 includes a dedicated plug-in chime unit that sounds loud indoor chimes alongside smartphone push notifications whenever someone rings the exterior button.
• Smart home enthusiasts using Matter and Apple Home: The eufy Security Video Smart Lock FamiLock combines ultra-fast palm vein authentication with radar sensing, broad ecosystem compatibility, and dual-battery failover protection.
• Multigenerational households with children or seniors: The eufy FamiLock S3 Max provides a built-in rear video screen on the inside of the door, allowing anyone to verify visitors instantly without finding or unlocking a smartphone.
• Doors exposed to harsh wind, rain, and freezing winter weather: The IP65-rated eufy Security Video Smart Lock S330 withstands extreme temperatures down to -22°F and supports expandable video storage up to 128 GB via the chime’s memory card slot.
• Properties with existing doorbell cameras installed: The eufy Security Smart Lock C220 provides eight months of battery life on standard AA cells and syncs seamlessly with current brand doorbells through the companion app.

Before You Buy

Before purchasing any smart deadbolt, homeowners must verify their front door prep and borehole measurements. The video-equipped deadbolts in this guide fit standard residential door boreholes and standard backset spacings without requiring drilling, but their extended exterior housings require sufficient clearance above the lock hole so they do not collide with existing decorative handles or door trim. Additionally, while models like the S330 with Chime support expandable recording up to 128 GB, the listings explicitly specify that microSD cards are not included and must be purchased separately if you plan to archive footage on local storage media.

Network requirements and power management also warrant careful planning before installation. These locks rely on standard 2.4 GHz Wi-Fi connections for direct remote communication, meaning your front entrance must receive an adequate wireless signal from your home router. For smart platform integration, while the FamiLock series supports Matter for core lock states across ecosystems like Apple Home, the manufacturer’s listing notes clarify that live camera streams cannot be transmitted across Matter connections due to current protocol limitations, necessitating the eufy Security app for video monitoring.

FAQ

Can a eufy 3 in 1 smart lock replace both a deadbolt and a doorbell camera?

Yes. The video smart lock models combine an electronic deadbolt, a 2K HD video camera, and an illuminated doorbell push button onto a single exterior mounting plate. This allows you to replace your traditional keyed lock and eliminate separate doorbell wiring or exterior chime buttons.

How does palm vein recognition compare to fingerprint unlocking on eufy locks?

Fingerprint models scan the surface ridges of your fingertip, which can occasionally struggle if your hands are wet, dirty, or worn. Palm vein models like the FamiLock series scan internal vascular structures beneath the skin using infrared light, offering 0.1 to 0.6-second touchless recognition that cannot be forged or obstructed by surface dirt.

Do eufy video smart locks require a monthly subscription for video storage?

No monthly subscription is required by these devices. Models such as the E330 feature 8 GB of internal storage directly onboard the lock, while the S330 models store clips on the included chime unit using a microSD card slot, and the S3 Max utilizes the bundled HomeBase 3 storage system.

What happens when the rechargeable battery runs out of power?

All video models provide advance low-battery alerts through the mobile app. Should the primary rechargeable battery deplete completely, the FamiLock models feature a dual power supply that activates four secondary AAA backup batteries, while all models retain mechanical key cylinders for physical key override.

Which eufy lock works with Apple Home and Matter?

The eufy Security Video Smart Lock FamiLock and eufy FamiLock S3 Max support the Matter protocol, allowing native lock and unlock automation within Apple Home, Google Home, SmartThings, and Alexa. However, live camera streaming is not currently supported through Matter and must be viewed through the eufy app.