Average score
Product 1: eufy Video Smart Lock S330
4.1
Product 2: Lockin Veno Pro Smart Deadbolt...
4.2
Access logs
Product 1: eufy Video Smart Lock S330
4.7

Access/activity logging is a practical strength in real use: reviewers mention seeing who unlocked/locked and, in some cases, which fingerprint/user performed the action.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.3

Event/activity logs are repeatedly mentioned, with reviewers noting access to doorbell and lock/unlock histories and the ability to review event records inside the app.

Alarm/siren loudness (if included)
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockin Veno Pro Smart Deadbolt...
4.1

Audio/alarm volume is adjustable in the app and reviewers note it can be loud by default during setup; the ability to tune or mute sounds is a plus, but audio quality for doorbell recordings was criticized by at least one reviewer.

App
Product 1: eufy Video Smart Lock S330
4.4

The app is consistently described as clean and feature-rich, with detailed control over access, detection, notifications, and power modes. A recurring critique is that troubleshooting (especially calibration guidance) could be clearer, and some wanted phone-based tap/NFC unlock.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.0

The Lockin app is widely described as feature-packed and customizable (modes, power management, access controls, event viewing), but multiple reviewers also flagged rough edges such as hidden controls, missing/immature video history features at launch, slow clip loading, and occasional troubleshooting or resets.

Auto-lock
Product 1: eufy Video Smart Lock S330
4.2

Auto-lock is commonly praised for peace of mind and flexibility (including short delays and schedules). Some reviewers cautioned that auto-lock can be risky if your door isn’t reliably closed/aligned or if door state detection is imperfect.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.5

Auto-lock is widely praised and highly configurable (immediate to timed delays). The built-in door-closed sensing helps prevent locking before the door is shut, improving real-world reliability.

Auto-relock after failed attempts
Product 1: eufy Video Smart Lock S330
4.3

Wrong-try protections are commonly described (lockdown/timeouts after multiple incorrect entries), helping reduce brute-force attempts and adding practical security beyond basic PIN entry.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.4

Wrong-try protection and lockout behavior are described as available and configurable, adding a practical layer of protection against repeated code attempts.

Backset compatibility
Product 1: eufy Video Smart Lock S330
4.5

Backset support is described as adjustable to common sizes (2 3/8 in and 2 3/4 in), which helps it fit typical deadbolt door prep.

Product 2: Lockin Veno Pro Smart Deadbolt...
No score yet
Battery
Product 1: eufy Video Smart Lock S330
4.4

Battery life is a highlight: the 10,000mAh rechargeable pack is repeatedly described as lasting months, with long-term users charging only a few times per year when tuned (for example, human-only motion). Charging can take hours and you may need to supply your own USB-C power gear.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.3

Battery life is commonly framed as roughly three months for the Pro, with USB-C charging and emergency power options. Several reviews highlight an optional solar panel that can meaningfully top up the battery, although placement and looks are a frequent complaint.

Bluetooth
Product 1: eufy Video Smart Lock S330
4.1

Bluetooth is commonly mentioned as part of the lock-to-bridge communication path. Reviewers generally describe it as functional, primarily as an invisible link in the overall system.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.2

Bluetooth is used in setup/bridging to Wi-Fi in several reviews and is generally portrayed as convenient during onboarding.

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

Build quality is widely described as heavy-duty and mostly metal, but it is also frequently called large/bulky. One expert review wanted a bit more robustness to make it an easy, universal recommendation.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.3

Build quality impressions are mostly positive: reviewers call the lock hefty, solid, and less plastic-heavy, though the exterior assembly is bulky and at least one reviewer criticized hardware tolerances (bolts/threads) as a quality-control pain point.

Door-sense
Product 1: eufy Video Smart Lock S330
2.5

Door state awareness appears mixed: at least one reviewer warned the lock may not reliably know whether the door is open or closed, which matters if you rely heavily on auto-lock behaviors.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.5

The integrated door-open/closed sensing via the strike plate and smart deadbolt is repeatedly called out as a smart, cleaner alternative to external sensors and is tied to better auto-lock behavior and door-status awareness.

Door compatibility (deadbolt fit)
Product 1: eufy Video Smart Lock S330
3.4

Door fit is usually straightforward, but some doors may need extra attention: shallow strike-plate depth can trigger calibration failures, and tight tolerances mean misalignment can prevent reliable locking.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.3

One review provides specific door thickness and bore-fit guidance and generally treats the lock as compatible with standard deadbolt installs; the main fit concern raised is bulk rather than incompatibility.

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

At least one installation guide notes you may be able to reuse existing deadbolt hardware if it fits flush, reducing the need to replace every component.

Product 2: Lockin Veno Pro Smart Deadbolt...
No score yet
Feature additions via updates
Product 1: eufy Video Smart Lock S330
4.5

At least one long-term reviewer highlighted meaningful feature additions via updates, such as unlocking directly from a live-view screen on supported cameras, improving day-to-day usability.

Product 2: Lockin Veno Pro Smart Deadbolt...
No score yet
Fingerprint
Product 1: eufy Video Smart Lock S330
4.4

Fingerprint performance is polarizing: several owners describe it as among the fastest and most accurate they have used, while one expert reviewer struggled with repeated reads and wished for clearer activation feedback (lighting).

Product 2: Lockin Veno Pro Smart Deadbolt...
4.0

Fingerprint access is usually described as quick and usable, but experiences vary: some found it reliable, others needed multiple tries or noted setup is slower than palm enrollment and can be harder for some users (including kids).

Geofencing
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockin Veno Pro Smart Deadbolt...
3.2

Geofencing is mentioned as present in some materials and apps, but reviewers say it is limited, often used for changing modes/settings rather than true automatic lock/unlock behavior.

Guest Codes and Access
Product 1: eufy Video Smart Lock S330
4.4

Guest access options are robust, including temporary or scheduled PIN codes and app-based access. Scramble passcode and other convenience/security options are frequently cited.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.1

Guest access features are a highlight: reviewers cite one-time, temporary, and scheduled PIN codes and easy sharing, though some note restrictions (temporary access may be PIN-only, and permission tiers/time restrictions for full users can be limited).

Hub requirement
Product 1: eufy Video Smart Lock S330
4.0

The required plug-in chime/bridge is a core part of the experience: it enables remote connectivity and local storage, and many liked having a loud indoor chime. Downsides include extra setup steps and needing to provide your own microSD card.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.0

For ecosystem control, reviewers note you may need a Matter controller hub (or similar hub) to add the lock to platforms like Apple Home, Google Home, Alexa, or SmartThings; hub use often comes with reduced feature depth versus the Lockin app.

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

Most reviewers found installation similar to other full deadbolt replacements and generally manageable, but a few called out real-world friction: needing a second set of hands, long firmware updates, and careful mechanical alignment to avoid errors or motor strain.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.2

Installation is often reported as a straightforward 10–15 minute swap for a standard deadbolt, with guided in-app setup, but one critical review cited poorly machined/jamming long bolts and lots of cable routing that can make assembly more frustrating than typical.

Jam detection
Product 1: eufy Video Smart Lock S330
2.8

Calibration and error states can present as jam-related warnings in the app for some installs, even when the deadbolt feels physically secure, creating nuisance alerts rather than true mechanical jams.

Product 2: Lockin Veno Pro Smart Deadbolt...
No score yet
Key override reliability
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockin Veno Pro Smart Deadbolt...
4.5

A physical key is included and used as a backup method; no review reported key override failures, and several call out the presence of emergency power as an additional fallback.

Keypad
Product 1: eufy Video Smart Lock S330
4.2

The keypad is generally considered easy and reliable for daily use, with extra security options like scramble passcodes. One reviewer noted occasional wake-up/tap sensitivity issues before the keypad became responsive.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.0

The keypad is generally seen as useful for kids/guests and as a backup method, but at least one reviewer criticized poor outside usability (a non-illuminated lock button and unclear manual locking cues).

Keyway quality
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockin Veno Pro Smart Deadbolt...
4.4

The keyway is typically hidden behind the doorbell button and presented as a practical backup; reviewers do not report pick/drill testing, but also do not flag obvious keyway quality problems in normal use.

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

When the biometric reader works well, unlocks are described as extremely fast. However, experiences vary: some testers reported repeated attempts needed on the fingerprint sensor, while others called operation instant and consistent.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.4

Lock/unlock responsiveness is frequently described as very fast (both biometrics and app control), though overall perceived speed can be undercut when video clips or app functions lag.

Locking motor
Product 1: eufy Video Smart Lock S330
4.2

The motor is sensitive to resistance: if the deadbolt/strike alignment is off, reviewers warned the motor may struggle or fail to complete a lock cycle. With good alignment, long-term users reported stable performance.

Product 2: Lockin Veno Pro Smart Deadbolt...
No score yet
Locking reliability
Product 1: eufy Video Smart Lock S330
4.2

Locking reliability is strong for many owners (including long-term use), but it is not universally flawless. Reported weak spots include finicky alignment/calibration states and occasional inconsistencies with certain external controls (like one-touch locking).

Product 2: Lockin Veno Pro Smart Deadbolt...
4.2

Locking reliability is rated highly in several hands-on tests, but one critical review characterized the product as still beta-like, requiring reboots/force-quits and not yet fully trustworthy without more firmware refinement.

Notifications
Product 1: eufy Video Smart Lock S330
4.1

Notifications are configurable and usually fast, but not perfect: a few reviewers saw delayed starts to recorded events, occasional missed motion/loitering triggers, or tradeoffs between faster alerts vs alerts that include thumbnails.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.1

Notifications are often described as fast and informative (motion/doorbell/lock events), but at least one reviewer reported major notification failures that required support and factory resets, and another noted limited per-alert toggles in the app.

Physical attack resistance
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockin Veno Pro Smart Deadbolt...
4.3

At least two reviews cite BHMA/ANSI Grade 2 level certification for the lock, suggesting solid baseline physical security for residential use, though most testing focused on convenience and software rather than attack trials.

Remote access
Product 1: eufy Video Smart Lock S330
4.5

Remote access is repeatedly described as convenient and reliable, including locking/unlocking from anywhere and checking lock status. Several reviewers highlighted using it for guests, contractors, or deliveries.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.2

Remote control via the Lockin app is positioned as a core strength (live view, lock/unlock, codes, alerts), though performance varies by reviewer, with some praising responsiveness and others reporting lag or slow video clip loading.

Security features (encryption)
Product 1: eufy Video Smart Lock S330
4.0

Security and privacy discussion centers on local storage and app behavior; one reviewer noted an on-screen encryption message before video streams to the bridge. Overall, the product is framed as privacy-leaning due to non-subscription local storage, with some mention of broader brand scrutiny.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.3

Some reviewers highlight on-device processing, local storage, and direct device-to-phone style connections (often described as more private), but concrete third-party verification details are limited; advanced security claims should be weighed against real-world software stability.

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

Smart-home integration is limited compared to ecosystems that prioritize Apple: reviewers consistently note Alexa and Google support, but no Apple HomeKit, Matter, or IFTTT.

Product 2: Lockin Veno Pro Smart Deadbolt...
3.9

Smart-home compatibility is frequently advertised as broad (Matter/Thread plus major platforms), and pairing generally works, but reviewers repeatedly note that third-party apps expose only basic lock functions and omit many advanced features (especially doorbell/camera and granular access controls).

Tamper detection sensitivity
Product 1: eufy Video Smart Lock S330
No score yet
Product 2: Lockin Veno Pro Smart Deadbolt...
4.2

Anti-tamper and unusual-activity detection are referenced (including tamper events surfaced in some ecosystem apps), but few reviewers deeply tested sensitivity or false-alarm behavior.

Touchscreen
Product 1: eufy Video Smart Lock S330
4.0

Touch controls are usually described as responsive and backlit, but at least one expert review reported needing multiple taps to wake the dark touchscreen at times.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.2

The touch interface is often described as responsive and modern, with some praise for smudge resistance; however, visibility/UX issues (fish-eye video framing noted elsewhere, and unlit button behavior) can reduce ease of use at night.

User access management
Product 1: eufy Video Smart Lock S330
4.3

User management is broadly praised, including multiple users, fingerprints, and configurable access windows. Reviewers emphasized that it’s easy to add or adjust access in the app.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.0

User management is generally organized (multiple palms/fingerprints/PINs per user), but at least one reviewer criticized limited permission granularity, with full users effectively receiving always-on access.

Value and Price
Product 1: eufy Video Smart Lock S330
4.0

Value is framed as strongest when the price is closer to the low-to-mid $300s, since it combines multiple devices and includes the chime/bridge. At full price near $400, reviewers still call it feature-rich, but expectations rise for perfect reliability and broad ecosystem support.

Product 2: Lockin Veno Pro Smart Deadbolt...
3.8

Value depends heavily on price: reviewers see the all-in-one concept and no-subscription local storage as compelling, but MSRP is considered expensive, and early-bird pricing is viewed as much more competitive given software maturity concerns.

Voice control
Product 1: eufy Video Smart Lock S330
4.1

Voice control works through Alexa and Google Assistant in supported setups, including lock/unlock commands and, in at least one review, routines tied to doorbell events.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.5

Voice control via assistants (Siri/Alexa/Google) is described as working for basic lock/unlock commands; richer smart-home routines are possible, but broader feature access still tends to live in the Lockin app.

Weather resistance
Product 1: eufy Video Smart Lock S330
4.5

Weather resistance is presented as strong on paper (including an IP65 rating in one review), and no reviewer reported weather-related failures in the provided transcripts.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.5

Multiple reviews cite IP65 weatherproofing and describe the lock holding up to rain/dust and outdoor conditions; long-term durability claims exist, but most evidence is short-to-medium term testing.

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

Wi-Fi is tied to the required bridge and is noted as 2.4GHz in at least one expert review. In general, connectivity is described as stable, with one review calling out distance guidance between lock, chime/bridge, and router.

Product 2: Lockin Veno Pro Smart Deadbolt...
4.3

Built-in 2.4GHz Wi-Fi is a recurring positive, enabling direct app control and remote features without a separate bridge for basic operation.