Compare eufy FamiLock S3 Max Smart Lock vs Aqara G4 Video Doorbell

P1 eufy FamiLock S3 Max Smart Lock
P2 Aqara G4 Video Doorbell

Comparison Takeaways

eufy FamiLock S3 Max Smart Lock

Where It Has the Edge

  • Higher overall score: 4.2 vs 3.7.
  • Locking reliability is rated 5.0 while the other product has no score yet. Locking reliability was consistently strong in the reviews that tested repeated lock/unlock behavior and routines.
  • Touchscreen is rated 5.0 while the other product has no score yet. Touchscreen/keypad usability was supported by positive comments about responsiveness and backlighting.
  • Lock/unlock speed is rated 5.0 while the other product has no score yet. Lock/unlock responsiveness was excellent in testing, especially with voice commands.

Aqara G4 Video Doorbell

Where It Has the Edge

  • Snapshot capture is rated 5.0 while the other product has no score yet. Snapshot capture was praised through HomeKit rich notifications that include a snippet of the visitor.
  • lag) is rated 5.0 while the other product has no score yet. Responsiveness and lag were praised strongly, with reviewers saying the feed and two-way talk reacted very quickly.
  • Base / Hub integration is rated 5.0 while the other product has no score yet. The chime/base integration was praised as a clever part of the system architecture.
  • Personalization options is rated 5.0 while the other product has no score yet. Personalization options were praised for custom MP3 ringtones and signature chime sounds.
Average score
Product 1: eufy FamiLock S3 Max Smart...
4.2
Product 2: Aqara G4 Video Doorbell
3.7
AI features
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.0

AI features were praised for local processing and breadth, but one reviewer found the AI feature inconsistent.

App
Product 1: eufy FamiLock S3 Max Smart...
4.2

The Eufy app was considered capable and feature-rich, with useful controls and setup help, but one reviewer found it sprawling.

Product 2: Aqara G4 Video Doorbell
No score yet
App, software and firmware
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.2

Software impressions were mixed, with praise for app depth and clip browsing but criticism of unfinished views, binding problems, and quirky integration.

Audio
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.5

Two-way audio was generally judged usable to strong, with reviewers saying the microphone was good enough, clear both ways, or great for package situations.

Auto-lock
Product 1: eufy FamiLock S3 Max Smart...
4.7

Auto-lock was viewed as a meaningful convenience and peace-of-mind feature, especially for families that forget to lock up.

Product 2: Aqara G4 Video Doorbell
No score yet
Auto-relock after failed attempts
Product 1: eufy FamiLock S3 Max Smart...
4.0

Wrong-try lockout was viewed positively as a useful safeguard against repeated bad attempts.

Product 2: Aqara G4 Video Doorbell
No score yet
Automation flexibility
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.8

Automation flexibility was mixed: Aqara routines sounded powerful, but HomeKit automations were criticized as too all-or-nothing.

Base / Hub integration
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
5.0

The chime/base integration was praised as a clever part of the system architecture.

Battery
Product 1: eufy FamiLock S3 Max Smart...
4.4

The dual-battery design was one of the most praised practical features, although heavy camera use made one reviewer doubt the advertised runtime.

Product 2: Aqara G4 Video Doorbell
No score yet
Battery and Charging
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.3

Battery feedback was highly mixed, from easy AA swaps and on-track estimates to short real-world life and weekly battery changes.

Build quality and durability
Product 1: eufy FamiLock S3 Max Smart...
4.7

Build quality drew strong praise, with reviewers describing the lock as robust, durable, and safe-like despite its size.

Product 2: Aqara G4 Video Doorbell
No score yet
Camera and doorbell performance
Product 1: eufy FamiLock S3 Max Smart...
4.2

Camera and doorbell performance was mixed-positive: daytime video, field of view, and the indoor screen drew praise, while low-light video, audio, and doorbell-button expectations were caveats.

Product 2: Aqara G4 Video Doorbell
No score yet
Chime
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.3

The chime was a strength: reviewers liked its loudness, optional use, repeater/hub role, and one user noted it did not startle their dog.

Color options
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.5

Color options were limited, with one review calling the two available colors almost identical.

Complete kit in box
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.3

The kit was generally complete, but one review noted that the buyer still needs to supply the USB-C AC adapter.

Controls and indicators
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
5.0

The large button and LED indicators were praised as obvious and easy to use, including in the dark.

Delivery package monitoring
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.2

Delivery package monitoring was a repeated weakness because the horizontal camera view often misses the porch floor.

Design aesthetics
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.1

Design feedback was mostly positive, though one reviewer thought it felt less premium and others noted its large, dark form.

Door-sense
Product 1: eufy FamiLock S3 Max Smart...
3.8

Door-sense received qualified praise because it can infer door state without a separate sensor, though with some edge-case caveats.

Product 2: Aqara G4 Video Doorbell
No score yet
Door compatibility (deadbolt fit)
Product 1: eufy FamiLock S3 Max Smart...
2.5

Door fit/usefulness is context-dependent: glass, windowed, screen, or storm doors can reduce the value of the camera and interior display.

Product 2: Aqara G4 Video Doorbell
No score yet
Faceplate/accessory inclusion
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.5

Accessory inclusion had a mounting limitation: the supplied wedge did not solve one reviewer's angle needs.

Face recognition
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.4

Face recognition was inconsistent: some reviewers found it fast or surprisingly good, while others said it was finicky, slow, or rarely recognized them.

Facial recognition
Product 1: eufy FamiLock S3 Max Smart...
4.5

Facial recognition was praised when paired with HomeBase, but reviewers treated it as an add-on rather than a built-in core feature.

Product 2: Aqara G4 Video Doorbell
No score yet
Field of view and framing
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.8

The horizontal 16:9 view was repeatedly described as wide, but reviewers also warned it can miss the porch floor and make package visibility weaker.

Finish durability
Product 1: eufy FamiLock S3 Max Smart...
4.2

Finish durability was only lightly covered, but one reviewer said the black metal casing still looked good after use.

Product 2: Aqara G4 Video Doorbell
No score yet
Hub requirement
Product 1: eufy FamiLock S3 Max Smart...
2.7

HomeBase dependence was a downside when reviewers wanted facial recognition or the most advanced alerts.

Product 2: Aqara G4 Video Doorbell
No score yet
Industrial design
Product 1: eufy FamiLock S3 Max Smart...
4.2

Industrial design was seen as modern and premium, though several reviewers noted that the lock is large or visually high-tech.

Product 2: Aqara G4 Video Doorbell
No score yet
Installation and Mounting
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.7

Installation was often easy, but some reviewers had mounting or setup frustrations, including adhesive failure and confusing first-time setup.

Installation and Setup
Product 1: eufy FamiLock S3 Max Smart...
4.3

Reviewers generally found setup straightforward and app-guided, though one pre-release unit caused connection and install friction.

Product 2: Aqara G4 Video Doorbell
No score yet
Key override reliability
Product 1: eufy FamiLock S3 Max Smart...
4.2

Reviewers treated the physical key override as a useful fallback for emergencies or users who prefer non-smart access.

Product 2: Aqara G4 Video Doorbell
No score yet
Keypad
Product 1: eufy FamiLock S3 Max Smart...
4.5

The keypad was generally praised as responsive, visible, and easy to use, with scramble-code support helping privacy.

Product 2: Aqara G4 Video Doorbell
No score yet
Keyway quality
Product 1: eufy FamiLock S3 Max Smart...
2.8

The hidden keyway cover was the weakest physical detail, with one reviewer finding it hard to reseat securely.

Product 2: Aqara G4 Video Doorbell
No score yet
lag)
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
5.0

Responsiveness and lag were praised strongly, with reviewers saying the feed and two-way talk reacted very quickly.

Lens distortion handling
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.0

Only one review judged distortion directly, describing the view as broad but visibly distorted.

Light adjustability
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.5

Light controls had limited positive evidence, with one reviewer praising the camera status and night-vision light toggles.

Lock/unlock speed
Product 1: eufy FamiLock S3 Max Smart...
5.0

Lock/unlock responsiveness was excellent in testing, especially with voice commands.

Product 2: Aqara G4 Video Doorbell
No score yet
Locking motor
Product 1: eufy FamiLock S3 Max Smart...
4.5

The motorized lock button was praised as making operation easier, particularly for users with limited hand comfort.

Product 2: Aqara G4 Video Doorbell
No score yet
Locking reliability
Product 1: eufy FamiLock S3 Max Smart...
5.0

Locking reliability was consistently strong in the reviews that tested repeated lock/unlock behavior and routines.

Product 2: Aqara G4 Video Doorbell
No score yet
Low-light and Night vision
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.5

Low-light feedback was mixed: some praised infrared or night vision, while others found nighttime faces washed out or merely fine.

Motion detection
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.0

Motion detection was one of the more repeated weaknesses, with finicky alerts, missed events, and inconsistent detection mentioned across reviews.

Multi-user sharing ease
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.5

Multi-user control had limited but positive evidence through HomeKit privacy permissions for household members.

Notifications
Product 1: eufy FamiLock S3 Max Smart...
4.5

Motion and doorbell notifications were mostly praised for speed and accuracy, with one reviewer noting a small delay.

Product 2: Aqara G4 Video Doorbell
No score yet
Notifications
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.5

Notifications were often praised as fast and useful, especially in HomeKit, though one reviewer reported 5-10 second notification delays for detected faces.

Object and person detection
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.0

Object and person detection had limited but positive direct evidence, with one reviewer calling object recognition consistent.

Ongoing ownership costs
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
5.0

Ongoing costs were praised because reviewers emphasized that the doorbell avoids burning a hole in the buyer's pocket.

Palm vein recognition
Product 1: eufy FamiLock S3 Max Smart...
4.7

Palm vein recognition was the clearest strength, repeatedly described as fast, reliable, convenient, and easier than fingerprints, with minor caveats about angle and unlock-only use.

Product 2: Aqara G4 Video Doorbell
No score yet
Peace of mind
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.0

Peace-of-mind evidence was limited but positive, with one review calling it competent for home security.

Personalization options
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
5.0

Personalization options were praised for custom MP3 ringtones and signature chime sounds.

Physical attack resistance
Product 1: eufy FamiLock S3 Max Smart...
4.4

Physical attack resistance had limited but positive evidence, with reviewers pointing to solid construction and tough security design.

Product 2: Aqara G4 Video Doorbell
No score yet
Pick/drill resistance (if rated)
Product 1: eufy FamiLock S3 Max Smart...
4.5

Pick resistance was praised in reviews that discussed the encrypted cylinder or difficulty of picking the lock.

Product 2: Aqara G4 Video Doorbell
No score yet
Power Options and Compatibility
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.4

Power flexibility was a strength because the G4 supports battery and wired use, though one review criticized the wiring route design.

Price and value
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.7

Value was a consistent strength, with reviewers praising the aggressive price, feature set, and affordability relative to competing doorbells.

Privacy
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.3

Privacy was a strength thanks to local operation, voice disguising, and privacy occlusion controls.

Recommendation for new buyers
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.3

Recommendation sentiment leaned positive, especially for HomeKit users and value seekers, but some reviewers limited the recommendation to specific needs.

Recording
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.0

Recording was split: 24/7 and local recording were praised, but short 6- or 12-second clips were criticized.

Reliability (general)
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.7

Reliability was mixed-to-negative: responsiveness could be excellent, but reviewers also reported offline states, missed events, and missing video.

Remote access
Product 1: eufy FamiLock S3 Max Smart...
4.5

Remote access had limited evidence but was described as quick and reliable.

Product 2: Aqara G4 Video Doorbell
No score yet
RTSP stream availability
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
1.0

RTSP availability was a major miss for one reviewer, who wanted wired-mode RTSP support and found its absence limiting.

Security ecosystem integration
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.0

Security ecosystem integration was weak for Home Assistant users because HomeKit Secure Video prevented the expected integration path.

Security features (encryption)
Product 1: eufy FamiLock S3 Max Smart...
4.5

Security encryption evidence was limited but positive, centered on the encrypted lock cylinder adding protection.

Product 2: Aqara G4 Video Doorbell
No score yet
Size and form factor
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.5

The form factor was a drawback for some reviewers because the doorbell was described as chunky, large, or dark.

Smart-home integration (Alexa, Google, Siri, HomeKit, Matter, Thread)
Product 1: eufy FamiLock S3 Max Smart...
3.5

Smart-home integration was the most split area: basic Matter, Alexa, Google, and HomeKit control worked, but advanced lock, camera, and palm features often stayed inside Eufy.

Product 2: Aqara G4 Video Doorbell
No score yet
Smart-home integration (Alexa, Google, Siri, HomeKit, Matter, Thread)
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.5

Smart-home integration was the product's clearest strength, especially HomeKit Secure Video, with additional positive mentions for Alexa and Google support.

Snapshot capture
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
5.0

Snapshot capture was praised through HomeKit rich notifications that include a snippet of the visitor.

Storage
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.8

Storage was praised for keeping the microSD card inside the chime rather than the exposed doorbell, reducing theft risk.

Subscription
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.8

Subscription value was strong because Aqara/local use avoids required subscriptions, although HomeKit Secure Video can involve an iCloud plan.

System completeness
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.0

System completeness scored well because the doorbell checked many feature boxes despite notable oversights.

Theft and Tamper
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
4.0

Tamper protection had limited but positive evidence, with one review calling the anti-tampering feature good.

Touchscreen
Product 1: eufy FamiLock S3 Max Smart...
5.0

Touchscreen/keypad usability was supported by positive comments about responsiveness and backlighting.

Product 2: Aqara G4 Video Doorbell
No score yet
User access management
Product 1: eufy FamiLock S3 Max Smart...
4.5

User access management was praised for making family access easy and supporting different time slots.

Product 2: Aqara G4 Video Doorbell
No score yet
Value and Price
Product 1: eufy FamiLock S3 Max Smart...
3.7

Value was mixed: reviewers repeatedly called it expensive, but some felt the all-in-one lock, camera, and doorbell package justified the premium.

Product 2: Aqara G4 Video Doorbell
No score yet
Video resolution and detail
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.9

Reviewers generally found daytime detail adequate, but several said the 1080p/no-HDR image was dated, pixelated, or not great, especially for faces in difficult light.

Voice control
Product 1: eufy FamiLock S3 Max Smart...
4.8

Voice control worked quickly where tested, especially through Alexa, Siri, or Google lock commands.

Product 2: Aqara G4 Video Doorbell
No score yet
Weather and temperature tolerance
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.7

Weather tolerance was split: one long test had no rain, snow, or cold issues, while two reviews warned the doorbell should stay under cover.

Weather resistance
Product 1: eufy FamiLock S3 Max Smart...
4.2

Weather resistance received limited but positive support tied to the lock’s durable construction for harsh conditions.

Product 2: Aqara G4 Video Doorbell
No score yet
Wi-Fi
Product 1: eufy FamiLock S3 Max Smart...
4.6

Wi-Fi performance was positive overall, with quick setup, steady connectivity, and claimed responsiveness from Wi-Fi 6 support.

Product 2: Aqara G4 Video Doorbell
No score yet
Wi-Fi range and stability
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
2.0

Wi-Fi range and stability had limited evidence, but one reviewer repeatedly saw a poor-network warning.

Zones and activity areas
Product 1: eufy FamiLock S3 Max Smart...
No score yet
Product 2: Aqara G4 Video Doorbell
3.8

Zones were useful in HomeKit and Aqara contexts for filtering alerts, though one reviewer said motion zones were missing in the Aqara app.