Compare eufy Video Smart Lock E330 vs eufy FamiLock S3 Max Smart Lock

Reviewers who evaluated event history found it useful for checking clips and seeing who came or went, especially for family awareness.

The app was consistently praised as simple, polished, and useful for setup, live view, lock control, access management, and monitoring.

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

Auto-lock drew strong praise for reliably relocking after a set time and reducing worry about whether the door was left unlocked.

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

The failed-attempt lockout behavior was viewed as a strong security safeguard when someone keeps entering wrong codes or fingerprints.

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

Battery feedback was the most divided area: some reviewers liked the removable rechargeable pack, while others reported short runtime or slow charging.

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

Build quality was rated very highly, with reviewers repeatedly describing the lock as metal, sturdy, well made, durable, and high quality.

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

Camera and doorbell performance was generally strong, with sharp 2K video, good night vision, fast loading, and useful two-way features, though field of view and door placement limited some setups.

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.

Door-sense was weakly supported because a reviewer specifically wanted a sensor to know whether the door was open or closed.

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

Door compatibility was a major caveat because screen doors, storm doors, deep jambs, and awkward door angles could compromise the camera or overall fit.

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

Existing hardware reuse scored well in the one clear opinionated case, where the lock worked with an existing strike plate and the reviewer called that nice.

Facial recognition was mixed: HomeBase-linked identification worked in one test, while another reviewer wanted face-based unlocking added.

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

Fingerprint access was one of the strongest areas, repeatedly described as fast, accurate, responsive, convenient, and the preferred unlock method.

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

Guest access was praised when reviewers could give temporary or remote user access without handing over physical keys.

Hub requirement was mixed because the lock can work without a HomeBase, but one reviewer disliked needing a separate chime when used alone.

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

Industrial design was well liked, with reviewers calling the lock sleek, compact, sharp, premium-looking, and attractive.

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

Installation and setup were consistently praised as quick, easy, straightforward, foolproof, or among the easiest smart-lock setups reviewers had tried.

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

Key override reliability scored well because reviewers appreciated the hidden physical key and backup power options for dead-battery situations.

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

The keypad was viewed positively for reliability, passcode flexibility, and backlighting, although one reviewer treated keypad access as less preferred than fingerprint.

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

Keyway quality was a recurring weakness because multiple reviewers noted the lock cannot be rekeyed or needs a locksmith for extra keys.

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

Lock and unlock speed scored strongly in the one clear opinionated review that called the lock fast and quiet.

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

The locking motor was praised as smooth and responsive in hands-on use.

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

Locking reliability scored highly where reviewers focused on the smart-lock half, calling it responsive and saying it worked as advertised.

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

Notifications were a clear strength, with reviewers describing alerts as nearly instant, responsive, fast, or consistent.

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

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.

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

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

Remote access was rated very highly because reviewers liked being able to view, unlock, greet visitors, or control the lock from the app remotely.

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

Security features such as scramble passcode and failed-attempt protections were praised as sensible, useful, and security-enhancing.

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

Smart-home integration was mixed-positive: Alexa, Google, Apple Watch, and Eufy ecosystem links were appreciated, but lack of HomeKit hurt one review.

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.

Touchscreen visibility scored poorly in the one clear opinionated review because the keypad and doorbell button were hard to find in the dark.

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

User access management scored well where reviewers valued adding users, codes, and fingerprints with access rules.

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

Value was mostly positive thanks to all-in-one convenience and savings versus higher-tier models, though one reviewer stressed that the lock is not cheap.

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

Voice control was positively received, especially Alexa integration, chime support, and hands-free unlocking through assistants.

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

Weather resistance scored strongly where reviewers found the lock handled rain, hot conditions, or outdoor exposure well.

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

Wi-Fi was mixed-positive: one reviewer saw fast alerts even on weak 2.4GHz Wi-Fi, while another warned experience depends on network strength.

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