Compare eufy Video Smart Lock S330 vs Lockly Secure Plus Smart Lock

P1 eufy Video Smart Lock S330
P2 Lockly Secure Plus Smart Lock

Comparison Takeaways

eufy Video Smart Lock S330

Where It Has the Edge

  • Notifications is 4.3 vs 1.5. Notifications were generally fast and useful for activity, motion, lock/unlock events, and thumbnails, though one review noted delayed...
  • Remote access is 4.4 vs 2.7. Remote access was a clear strength, with reviewers locking or unlocking from the app, even away from home.
  • Hub requirement is 3.9 vs 2.3. The bridge/chime is central to the system: reviewers described it as included, useful for indoor chimes and storage,...
  • Voice control is 4.2 vs 2.6. Voice control works through Alexa and Google according to multiple reviews, but Apple ecosystem support is absent.

Lockly Secure Plus Smart Lock

Where It Has the Edge

  • Locking motor is 4.5 vs 2.7. The motor is only directly described by PCMag, which found the lock extremely quiet in testing.
  • Door compatibility (deadbolt fit) is 4.2 vs 3.3. Reviewers describe broad door-fit flexibility through standard exterior-door compatibility, deadbolt or latch-style options, and multiple lock-style choices, though...
  • Keypad is 4.6 vs 4.0. The keypad is one of the strongest features, with repeated praise for randomized number positions, Pin Genie shuffling,...
  • Touchscreen is 4.3 vs 3.8. The touchscreen is described positively as seamless, capacitive, and large, with its value tied closely to the randomized...
Average score
Product 1: eufy Video Smart Lock S330
4.0
Product 2: Lockly Secure Plus Smart Lock
3.8
Access logs
Product 1: eufy Video Smart Lock S330
4.4

Reviewers who discussed logs found useful entry history, including how the lock opened and which fingerprint was used, with one transcript explicitly describing an activity log.

Product 2: Lockly Secure Plus Smart Lock
4.5

Access logs are well supported, with multiple reviews citing event history, user access logs, and activity records extending back a year.

Alarm/siren loudness (if included)
Product 1: eufy Video Smart Lock S330
4.2

The included chime can get loud enough for household alerts across rooms or floors, though reviewers discussed chime volume rather than a separate siren.

Product 2: Lockly Secure Plus Smart Lock
No score yet
App
Product 1: eufy Video Smart Lock S330
4.3

The app was generally praised as smooth, clean, user-friendly, and feature-rich, with live video, settings, and remote controls accessible from the phone.

Product 2: Lockly Secure Plus Smart Lock
4.2

The app is generally described as easy, intuitive, and useful for setup and control, though one review ties app-based user code workflows to some complexity.

Auto-lock
Product 1: eufy Video Smart Lock S330
4.4

Auto-lock was repeatedly seen as a useful peace-of-mind feature, with timing and schedule controls, although one reviewer warned it may lock when the door is open.

Product 2: Lockly Secure Plus Smart Lock
4.4

Auto-lock is widely supported and generally positive, with reviewers noting configurable relocking intervals and successful auto-lock performance.

Auto-relock after failed attempts
Product 1: eufy Video Smart Lock S330
4.2

Wrong-try protection and passcode lockout were clearly supported, giving the lock a configurable response after repeated failed attempts.

Product 2: Lockly Secure Plus Smart Lock
No score yet
Backset compatibility
Product 1: eufy Video Smart Lock S330
4.6

Backset support is well documented for common 2 3/8-inch and 2 3/4-inch sizes.

Product 2: Lockly Secure Plus Smart Lock
No score yet
Battery
Product 1: eufy Video Smart Lock S330
4.2

Battery feedback was strongly positive overall, with multiple reviewers citing several months of use, USB-C charging, and only occasional recharges.

Product 2: Lockly Secure Plus Smart Lock
4.1

Battery coverage is strong, with four AA batteries, 9-volt emergency backup options, and one long-term reviewer reporting stellar remaining battery life after about a year.

Bluetooth
Product 1: eufy Video Smart Lock S330
4.0

Bluetooth is present through the included bridge, which PCMag says contains both Wi-Fi and Bluetooth radios.

Product 2: Lockly Secure Plus Smart Lock
3.9

Bluetooth is core to local control and is usually responsive or stable, but one review reports trouble finding the lock on some mobile devices.

Build quality and durability
Product 1: eufy Video Smart Lock S330
4.4

Build quality was consistently described as sturdy, metal, heavy-duty, or durable, although the hardware is also physically large.

Product 2: Lockly Secure Plus Smart Lock
4.1

Build quality is generally positive, with reviewers calling the lock sturdy, well-built, high quality, and hefty, though one also notes its larger-than-most footprint.

Camera and doorbell performance
Product 1: eufy Video Smart Lock S330
4.2

Camera and doorbell performance were usually praised for 2K clarity and useful detection, but a few reviews reported missed, delayed, or weaker night events.

Product 2: Lockly Secure Plus Smart Lock
No score yet
Door-sense
Product 1: eufy Video Smart Lock S330
3.1

Door-sense style features are mixed: one review praised leaving detection, while another said auto-lock did not know whether the door was open or closed.

Product 2: Lockly Secure Plus Smart Lock
3.3

Door-sense evidence is mixed: reviewers mention an added or optional door sensor, but Digital Trends encountered status-reporting calibration problems.

Door compatibility (deadbolt fit)
Product 1: eufy Video Smart Lock S330
3.3

Deadbolt fit is the biggest installation caveat: it replaces a standard deadbolt but can be sensitive to strike-plate depth, alignment, and size constraints.

Product 2: Lockly Secure Plus Smart Lock
4.2

Reviewers describe broad door-fit flexibility through standard exterior-door compatibility, deadbolt or latch-style options, and multiple lock-style choices, though one basement-door install required extra side-bracket work.

Existing hardware reuse
Product 1: eufy Video Smart Lock S330
4.2

SafeWise explicitly noted that the existing deadbolt can be reused if the Eufy deadbolt does not fit flush.

Product 2: Lockly Secure Plus Smart Lock
4.0

Two reviews support replacing existing hardware, including removing an old lock and swapping in Lockly in under fifteen minutes in one test.

Feature additions via updates
Product 1: eufy Video Smart Lock S330
4.0

At least one long-term reviewer observed a useful live-view unlocking feature added after the original review.

Product 2: Lockly Secure Plus Smart Lock
3.8

Feature additions are supported by evidence that Lockly added a Wi-Fi hub and door sensor, plus a later reviewer mentioning a possible backward-compatible Matter controller.

Fingerprint
Product 1: eufy Video Smart Lock S330
4.3

Fingerprint performance was split: several reviewers called it fast and accurate, while PCWorld had repeated recognition problems.

Product 2: Lockly Secure Plus Smart Lock
4.6

Fingerprint unlocking is the clearest consensus strength: every review cites the reader, and most describe it as fast, responsive, accurate, effective, or unusually convenient.

Finish durability
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockly Secure Plus Smart Lock
4.5

Finish durability is supported through Digital Trends' warranty evidence, which cites lifetime protection for exterior finishes.

Geofencing
Product 1: eufy Video Smart Lock S330
2.0

Geofencing or phone-proximity unlock was not available in the reviewed app experience; one reviewer specifically wished for it.

Product 2: Lockly Secure Plus Smart Lock
No score yet
Guest Codes and Access
Product 1: eufy Video Smart Lock S330
4.4

Guest access is a strength, with temporary passcodes, schedules, and easy programming mentioned across reviews.

Product 2: Lockly Secure Plus Smart Lock
4.2

Guest access is feature-rich, including access codes, eKeys, one-time codes, offline codes, and eBadges, though TechHive found temporary PIN creation convoluted.

Hub requirement
Product 1: eufy Video Smart Lock S330
3.9

The bridge/chime is central to the system: reviewers described it as included, useful for indoor chimes and storage, and in one case mandatory.

Product 2: Lockly Secure Plus Smart Lock
2.3

Hub requirement is a key limitation because reviewers say remote access and network/smart-home features require the Secure Link Wi-Fi hub.

Installation and Setup
Product 1: eufy Video Smart Lock S330
4.2

Installation was mostly manageable and often easy, but several reviewers noted alignment, strike-plate depth, or two-handed handling challenges.

Product 2: Lockly Secure Plus Smart Lock
3.7

Installation evidence is split: several reviewers completed setup in about 15-35 minutes or found app-guided directions simple, while TechHive called installation unusually difficult and Digital Trends noted the lock's size made it trickier.

Jam detection
Product 1: eufy Video Smart Lock S330
2.6

Jam detection can be frustrating when calibration or strike-plate depth is off, with one reviewer saying the app kept showing jammed despite a secure bolt.

Product 2: Lockly Secure Plus Smart Lock
No score yet
Key override reliability
Product 1: eufy Video Smart Lock S330
4.2

Key backup is well covered: reviewers repeatedly noted the hidden or included physical key option for emergencies.

Product 2: Lockly Secure Plus Smart Lock
4.1

Key backup is consistently present: reviews mention a physical key, traditional key access, and a covered mechanical key slot for fallback entry.

Keypad
Product 1: eufy Video Smart Lock S330
4.0

The keypad generally worked well and supports PIN entry, though one review found the touchscreen sometimes needed extra wake-up taps.

Product 2: Lockly Secure Plus Smart Lock
4.6

The keypad is one of the strongest features, with repeated praise for randomized number positions, Pin Genie shuffling, and shoulder-surfing protection.

Lock/unlock speed
Product 1: eufy Video Smart Lock S330
4.7

Lock and unlock speed was strong in favorable tests, especially through fingerprint access, with instant or very quick operation reported.

Product 2: Lockly Secure Plus Smart Lock
4.8

Lock and unlock speed is a strength, with instant app response, a deadbolt that activates within seconds, and fast fingerprint unlocking.

Locking motor
Product 1: eufy Video Smart Lock S330
2.7

The motor can be sensitive to deadbolt alignment; one review warned it may fail to lock if the motor struggles.

Product 2: Lockly Secure Plus Smart Lock
4.5

The motor is only directly described by PCMag, which found the lock extremely quiet in testing.

Locking reliability
Product 1: eufy Video Smart Lock S330
4.0

Locking reliability ranged from flawless or year-long solid use to sensitivity when alignment was imperfect or one-touch locking failed.

Product 2: Lockly Secure Plus Smart Lock
3.9

Reliability is mostly positive, including smooth operation and strong physical stability, but Digital Trends reported incorrect locked/unlocked status calibration.

Notifications
Product 1: eufy Video Smart Lock S330
4.3

Notifications were generally fast and useful for activity, motion, lock/unlock events, and thumbnails, though one review noted delayed motion recording.

Product 2: Lockly Secure Plus Smart Lock
1.5

Notification support is a weakness because PCMag specifically says push notifications were missing compared with other smart locks.

Physical attack resistance
Product 1: eufy Video Smart Lock S330
3.7

Physical resistance was not attack-tested, but the lock offers extra screws for added security and reviewers described sturdy hardware.

Product 2: Lockly Secure Plus Smart Lock
No score yet
Remote access
Product 1: eufy Video Smart Lock S330
4.4

Remote access was a clear strength, with reviewers locking or unlocking from the app, even away from home.

Product 2: Lockly Secure Plus Smart Lock
2.7

Remote access is context-dependent: reviewers say it works with the hub, but without that extra hardware the lock cannot be controlled remotely.

Security features (encryption)
Product 1: eufy Video Smart Lock S330
4.1

Security features include scramble passcodes, wrong-try protection, and an encryption message, while one review also mentioned broader Eufy privacy concerns.

Product 2: Lockly Secure Plus Smart Lock
4.4

Security features are a major strength, with AES256 Bluetooth encryption, hack-resistant design claims, anti-code-theft measures, and secure account setup evidence.

Smart-home integration (Alexa, Google, Siri, HomeKit, Matter, Thread)
Product 1: eufy Video Smart Lock S330
3.4

Alexa and Google support were consistently reported, while reviewers also consistently noted missing HomeKit, IFTTT, and Matter support.

Product 2: Lockly Secure Plus Smart Lock
2.2

Smart-home integration is limited out of the box: some Alexa/Google support is possible with the hub, but reviewers cite missing HomeKit, IFTTT, and wider ecosystem support.

Touchscreen
Product 1: eufy Video Smart Lock S330
3.8

Touchscreen and touchpad feedback was mixed, ranging from PCMag's responsive touchpad to PCWorld's wake-up issues.

Product 2: Lockly Secure Plus Smart Lock
4.3

The touchscreen is described positively as seamless, capacitive, and large, with its value tied closely to the randomized keypad behavior.

Two-factor authentication availability
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockly Secure Plus Smart Lock
3.8

Two-factor-style account verification appears in setup evidence through mobile-number/email verification and SMS plus email verification codes.

User access management
Product 1: eufy Video Smart Lock S330
4.4

User access management is strong, with high user/fingerprint limits, individual codes, and easy additional-user enrollment.

Product 2: Lockly Secure Plus Smart Lock
4.5

User access management is robust, with trusted users, family fingerprints, revocable permissions, and access that can be limited or removed.

Value and Price
Product 1: eufy Video Smart Lock S330
4.1

Reviewers generally found the price reasonable for the all-in-one lock, doorbell, camera, local storage, and no-fee value, while still calling it pricey.

Product 2: Lockly Secure Plus Smart Lock
2.7

Value is mixed-to-negative: reviewers like the features, but repeatedly call out high price, paid hub costs, and cheaper competing alternatives.

Voice control
Product 1: eufy Video Smart Lock S330
4.2

Voice control works through Alexa and Google according to multiple reviews, but Apple ecosystem support is absent.

Product 2: Lockly Secure Plus Smart Lock
2.6

Voice control depends on hub-enabled Alexa or Google integration; reviews also note no built-in voice support and no Apple voice ecosystem support.

Warranty and support
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockly Secure Plus Smart Lock
4.5

Warranty evidence is strong but only appears in one review, which cites lifetime finish coverage and two-year electronics protection.

Weather resistance
Product 1: eufy Video Smart Lock S330
4.6

Weather resistance is supported by an IP65 waterproof rating and operating-temperature claims in the reviewed materials.

Product 2: Lockly Secure Plus Smart Lock
4.5

Weather resistance is directly supported by one review that says the casing can withstand conditions from below freezing to extremely hot days.

Wi-Fi
Product 1: eufy Video Smart Lock S330
3.9

Wi-Fi works through the bridge and supports remote use, but reviewers noted 2.4GHz-only setup and dependence on the bridge/chime connection.

Product 2: Lockly Secure Plus Smart Lock
2.5

Wi-Fi is not built in on the reviewed Secure Plus; reviewers repeatedly say it depends on an extra hub or adapter, though hub-connected operation can be fast.