Compare eufy Video Smart Lock E330 vs Aqara UWB Smart Lock U400

Event history is a consistent strength, with multiple reviewers highlighting detailed lock and camera logs that can identify who unlocked the door by fingerprint or code.

Access logs were directly supported by Aqara app evidence showing lock/unlock events and alerts.

The Eufy app is broadly praised for setup, live view, quick lock controls, access management, and clear event history, with few complaints beyond battery-related settings tradeoffs.

App support was generally positive, with Aqara exposing advanced settings and Apple Home covering daily controls, though Aqara customization can take learning.

Auto-lock is widely described as reliable and flexible, with adjustable timers and scheduling, though it is timer-based rather than true door-position sensing.

Auto-lock received broad support through Apple Home timing options, Aqara lock-on-close behavior, and reviewers reporting reliable day-to-day operation.

Wrong-try protection appears well implemented, letting owners lock out further attempts after repeated bad fingerprints or PIN entries.

The adjustable deadbolt and removable fit pieces help it adapt to common backset and bore variations on standard doors.

Backset and bore compatibility received direct support through adjustable backset comments and cross-bore adapter coverage.

Battery life is the biggest unresolved weakness: light use can be respectable, but several reviewers saw much shorter runtimes than the 8-12 month marketing claim once motion, video, and notifications were active.

Battery feedback was strong: reviewers liked the removable rechargeable pack, USB-C charging, outside emergency power, and roughly six-month estimates.

Bluetooth helps with setup and is mentioned by some reviewers as an available unlock path, though Wi-Fi and fingerprint are the primary day-to-day methods.

Bluetooth was usually discussed as inferior to UWB or as a fallback/local setup path; reviewers favored Thread/UWB for precision and responsiveness.

Build quality is generally rated highly, with reviewers calling the exterior solid, premium-looking, and well made for a lock-camera combo.

Build quality was mostly positive, with solid construction and improved design, though some reviewers still called out bulk, plastic feel, or ordinary styling.

Reviewers generally liked the sharp 2K image, usable night vision, fast live view, and subscription-free local storage, but the camera side remains more compromised than a dedicated video doorbell because field of view, package visibility, and button discoverability can vary a lot by door layout.

Camera and doorbell integration was practical but secondary, with Aqara cameras, doorbells, and live-video unlock workflows mentioned in several reviews.

Reviews indicate the E330 lacks true door-open and door-closed sensing, so auto-lock relies on timers instead of confirming the door position.

Door-sense evidence came from the lock detecting open/closed state, using a gyroscope or built-in close detection, and enabling lock-on-close behavior.

It fits standard deadbolt doors well, but compatibility gets worse with deep jambs, screen doors, unusual spacing, or layouts that block the camera's view.

Reviewers found standard deadbolt and door fit generally workable, with useful adapters, but full-replacement hardware and some door layouts can matter.

Some installations reuse the existing strike plate or fit the current bore cleanly, but others require minor modification or a new strike fit.

Existing-hardware reuse is mixed: the lock replaces the whole deadbolt assembly, but some reviewers noted no extra drilling or strike-plate reuse in their installs.

Feature-update evidence included firmware updates, Apple Home updates, Matter/Aliro readiness, and futureproofing claims.

Fingerprint entry is one of the product's clearest wins, repeatedly described as fast, accurate, and the preferred way to unlock.

Fingerprint performance was consistently praised as fast, accurate, convenient, and a strong fallback when UWB or Home Key was not used.

Finish feedback was limited but generally favorable for fingerprint resistance and clean looks, with one reviewer still noting the plastic appearance.

Lineup comparisons indicate the E330 does not offer the location-based auto features found on higher-tier Eufy models.

Geofencing evidence was mostly comparative: reviewers framed UWB as more precise and less dependent on unreliable Bluetooth/geofence workflows.

Guest access is flexible, with permanent, temporary, scheduled, and one-time code options that reviewers found genuinely useful.

Guest codes and access were widely supported through PINs, one-time passwords, Apple Home access sharing, NFC fobs, and temporary-user options.

A hub is optional rather than required: the lock works on its own, while HomeBase 3 mainly adds AI features, storage flexibility, and ecosystem extras.

Hub requirements are a recurring caveat: most smart functionality needs a Thread border router, and Aqara-app remote control may require an Aqara hub.

Installation is usually quick and straightforward for standard doors, often landing in the 10-20 minute range, though edge cases can require minor door work.

Installation was repeatedly described as straightforward for a standard deadbolt, though a few reviewers noted tight wiring, small screws, or door-prep caveats.

Jam detection evidence was limited to Aqara automation conditions such as Not Fully Locked, which one reviewer interpreted as open or possibly jammed.

The hidden physical key and external USB-C emergency power option give the E330 credible backup access if the battery runs down.

Physical key backup was consistently confirmed as a reliable fallback alongside UWB, NFC, fingerprint, keypad, and app access.

The keypad works well and supports scramble PIN entry, but several reviewers note that the button area can be hard for visitors to find in the dark.

The keypad was broadly functional and often hidden for a cleaner look, though several reviewers noted occasional wake or touch responsiveness quirks.

The physical key backup is useful, but the cylinder cannot be rekeyed, which several reviewers see as a practical downside.

Keyway quality evidence centered on rekeyability, a usable physical cylinder, and hidden keyhole access rather than high-security keyway claims.

Locking and unlocking are generally quick, especially by fingerprint, with several reviewers describing the response as near-instant or sub-second.

Unlock speed was one of the strongest themes: reviewers repeatedly described UWB and fingerprint unlocking as fast, seamless, or ready before reaching the door.

Limited direct commentary suggests the motor is reasonably quick and quiet, but this is not as heavily discussed as fingerprint speed or battery drain.

Locking motor evidence was minimal, limited to a reviewer observing the motor actuating during hands-on setup.

The lock mechanism itself is consistently dependable in reviews, with few complaints about failed locking or unlocking once properly installed and calibrated.

Locking reliability was strongly supported across reviews, especially for UWB unlock-on-approach and Thread responsiveness, with only isolated caveats.

Notifications are a strong point, with repeated praise for fast alerts from motion events, doorbell presses, and lock actions.

Notifications and alerts were supported through Apple Home unlock alerts, Apple Watch/iPhone notifications, and Aqara low-battery or lock-state alerts.

Evidence is limited but positive, including BHMA-related claims and durability figures that suggest a sturdier-than-average smart lock build.

Physical attack resistance is only moderate: reviewers confirmed BHMA Grade 3 certification and noted it is the lowest BHMA level.

Remote locking, unlocking, live view, and answering the door from the app all work well and are central to the product's appeal.

Remote access was supported through Apple Home, Aqara hub/app workflows, and reviewer tests showing reliable remote unlocking where configured.

Security-feature evidence focused on UWB's precise distance/direction awareness, reduced Bluetooth-style risks, and encryption-related comments.

Integration is good but not universal: Alexa and Google are commonly supported, HomeBase 3 adds more capability, and HomeKit support is notably absent.

Smart-home integration was a core strength, with Matter over Thread plus Apple Home, Alexa, Google Home, SmartThings, Home Assistant, and Siri support.

The touch-sensitive keypad is responsive and modern, though nighttime discoverability is not as polished as on some dedicated doorbells.

Touchscreen feedback was mostly positive for hidden keypad usability, but some reviewers reported that it sometimes needed extra taps to wake.

User management is robust, supporting admins, shared users, remote passcode assignment, and sizeable limits for codes and fingerprints.

User access management was strong, with evidence for multiple users, roles, fingerprints, passwords, NFC devices, and time-limited access.

Value is mixed: the combined lock-camera-doorbell design and no-subscription local storage are appealing, but the price stings more when battery life or fit issues reduce the benefit.

Value and price were favorable but not universal: reviewers praised the UWB convenience and overall capability while noting price increases and battery-sourcing concerns.

Voice control through Alexa or Google is commonly supported and useful for basic lock commands, though it is more of a convenience layer than a standout feature.

Voice control was supported through Siri, Alexa or Echo mentions, and Apple Home integration for lock commands.

Support and warranty coverage look adequate rather than exceptional, with a one-year warranty mentioned and at least one battery-drain support interaction that did not fully solve the issue.

Weather resistance is generally viewed as solid for outdoor use, with repeated IP65 mentions and positive rain-use feedback, even if one comparison suggested a lower resistance tier than the S330.

Weather resistance was consistently supported by IP65 outdoor ratings and real-world exposure to rain, snow, ice, and temperature swings.

Wi-Fi performance is typically stable once connected, with fast remote access and alerts, but setup expects a 2.4 GHz network.

Wi-Fi was mostly relevant by absence: reviewers highlighted Thread as avoiding Wi-Fi load or Wi-Fi power draw rather than praising built-in Wi-Fi.