Compare eufy Video Smart Lock E330 vs Aqara Smart Lock U100

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.

Activity logs are a strong feature, showing who unlocked the door and by which method in many cases. One limitation noted is that HomeKit-related unlocks can appear as a generic HomeKit event rather than the exact method used.

The lock provides audible chirps/voice prompts and a door-not-locked alarm, with adjustable volume levels and do-not-disturb options. Loudness is generally adequate for awareness rather than a full security siren.

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.

The Aqara app provides deeper control than HomeKit (logs, codes, users, alerts, automations), and the UI is generally considered capable. Some reviewers dislike the firmware update flow, Bluetooth connection wait time, or needing to be near the lock for certain settings.

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 is feature-rich (door-close sensing, timers, schedules, passage mode), and many find it convenient. However, some reviews label it beta and report occasional misfires or latch problems if calibration or door alignment is off. Auto-unlock behaviors are mainly achieved through automations (for example, location-based routines or ecosystem rules) rather than a pure hands-free proximity unlock. These can work well but may depend on hubs and platform security prompts.

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

Failed-attempt lockout is widely described as effective: after multiple incorrect entries, the lock disables certain methods for up to about 30 minutes. This helps deter brute-force attempts and is often configurable.

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

Supports common backset sizing (2-3/8 and 2-3/4) and is generally compatible with typical North American deadbolt spacing when installed to spec.

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 life is often rated around 8 months on four AA cells and many users report strong endurance, while a few long-term accounts cite faster drain. USB-C emergency power and a physical key mitigate low-battery scenarios.

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 is the default direct connection and usually works reliably within range, though initial connections can take a few seconds. Binding to an Aqara hub can shift more traffic to Zigbee and feel snappier for remote tasks.

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

The exterior housing is frequently described as heavy, sturdy, and premium-feeling (zinc-alloy/metal), while the interior side is more plastic. Overall durability impressions are strong, with some long-term cosmetic wear noted.

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.

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 relies on a gyroscope/accelerometer to infer open/closed/ajar status and trigger alerts or auto-lock. Accuracy is generally good after calibration, but a few reviewers report occasional false readings or less-than-perfect precision.

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.

Fits many standard single-cylinder deadbolt doors, but door prep matters: small misalignment can cause friction or latch issues. Measure carefully and expect occasional hole/strike adjustments on older hardware.

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

Firmware updates can add features and improve stability over time, and several reviewers cite meaningful improvements after updates. The update process can be more manual than expected (download to phone, transfer over Bluetooth).

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

Fingerprint unlocking is consistently a standout: fast (often cited under 0.5s) and accurate, with storage kept on-device. Wet fingers or cuts can cause retries, but overall performance is excellent.

Some owners report the finish can scratch or show wear over months, especially on darker colors, even though it does not affect operation. The keypad coating is often praised for resisting smudges.

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

Geofencing and location-based automation options are available primarily through app automations and platform routines. They can be powerful but may be labeled beta and require always-on location permissions.

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

Guest access is flexible with one-time and temporary codes and shareable passes, and HomeKit can also generate guest codes. A recurring day-of-week/time window schedule is a noted limitation in several reviews.

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.

Hubs are optional for basic local use but commonly required for the best experience: Apple Home remote access needs a Home hub, and Matter/Alexa/Google/IFTTT and many remote features need an Aqara hub. This adds cost and setup complexity.

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.

Most reviewers found installation straightforward for standard deadbolts, with clear in-app tutorials and a required calibration step. Older doors sometimes need drilling or chiseling for a smooth bolt throw.

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

A hidden physical keyway plus included keys provide a dependable backup, and multiple reviewers recommend carrying a key in case of connectivity or power issues. Manual operation from inside remains simple via the thumbturn.

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 touchscreen keypad is widely praised for being backlit, responsive, and easy to use for 6-10 digit codes. Minor nitpicks include needing to wake it first and, in some workflows, pressing a confirm/lock button.

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

Re-keying is a common pain point: several reviewers say the cylinder and pins are nonstandard or hard to swap, making matching existing house keys difficult without a locksmith-level workaround.

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

Lock and unlock actions are generally quick, especially via fingerprint and Home Key, with responsive bolt movement. App and auto-lock actions can show small delays depending on connectivity and settings.

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

The motor is often described as powerful with high torque and fast actuation, helping the deadbolt throw confidently. Proper alignment is still important to avoid binding on the strike.

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

Day-to-day locking is usually reliable, but a minority of long-term reports mention occasional offline freezes or auto-lock calibration mishaps. Firmware updates and a reset often improve stability, and a physical backup is advised.

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

Notifications cover unlock events, door-not-locked warnings, and various alerts, with do-not-disturb controls available. Some long-term feedback mentions missed alerts or occasional incorrect status reporting in the app, often improving after updates.

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

Some reviews cite BHMA/ANSI compliance and sturdy construction for basic physical resilience, but it is not positioned as the highest-grade security hardware. The practical security story is the combination of durability, alerts, and logs.

Pick/drill resistance is not emphasized with a top-tier rating in these reviews, and several discussions imply it is similar to typical consumer smart lock cylinders. If high-security cylinder performance is a priority, this may not be the best match.

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 is achievable through a HomeKit hub and/or an Aqara hub, enabling remote lock control, status checks, and code management. Without a hub, control is typically limited to Bluetooth range.

Security is reinforced with AES-128 style encryption claims and on-device fingerprint storage, which reviewers view positively for privacy. The feature set focuses on secure access methods and auditability rather than ultra-high-security cylinders.

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

Integration is a major strength: Apple Home/Home Key and Siri work well, and with an Aqara hub the lock can expand to Matter, Alexa, Google Home, and IFTTT. A few ecosystem-specific quirks and hub dependencies are the main downsides.

Brute-force mitigation is solid, with alarms, visual warnings, and a lockout after repeated failed attempts that disables keypad/fingerprint temporarily. Sensitivity and lockout timing are typically adjustable.

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

The touch interface is generally sensitive and satisfying, with a matte finish that helps readability and reduces fingerprint marks. Night visibility is typically strong thanks to the backlight.

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

User management supports multiple users, fingerprints, passcodes, and (Aqara) NFC credentials with per-user limits. Apple Home's access management is simpler and may not expose the same scheduling and log detail.

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 is frequently rated high, especially when discounted and compared with other Home Key locks. The main price caveat is that adding hubs can push the total closer to premium competitors.

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 is strong via Siri/HomeKit, while Alexa and Google typically require an Aqara hub and may need extra setup steps. Voice unlocking commonly uses a PIN or platform security gating.

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.

The exterior portion is IP65-rated and reviewers report it tolerates heat, cold, and rain well. The interior unit is not weather-rated but is protected indoors.

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

There is no built-in Wi-Fi radio, so the lock itself cannot connect directly to a router. Remote control and broader integrations rely on an Apple Home hub and/or an Aqara Zigbee hub acting as the bridge.