Average score
Product 1: Desloc D110 Plus Smart Lock
3.9
Product 2: eufy Video Smart Lock S330
4.1
Access logs
Product 1: Desloc D110 Plus Smart Lock
4.1

Activity history is commonly available via an events or logs view showing locks and unlocks, though at least one review noted failed attempts may not always be logged unless a lockout triggers.

Product 2: 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.

App
Product 1: Desloc D110 Plus Smart Lock
4.1

The app generally earns good marks for straightforward control, logs, user setup, and modes, but some reviewers wanted clearer or more adjustable advanced settings (notably around lockout behavior and alerts).

Product 2: 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.

Auto-lock
Product 1: Desloc D110 Plus Smart Lock
3.7

Auto-lock is available with a short delay range (often cited as 5 to 120 seconds) and works as intended for many users, but its time-based nature and limited delay range drew criticism in a few reviews.

Product 2: 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.

Auto-relock after failed attempts
Product 1: Desloc D110 Plus Smart Lock
3.8

Failed-attempt protection can trigger a temporary lockout after repeated wrong codes, and at least one review described adjustable thresholds, though another noted limited transparency or controls.

Product 2: 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.

Backset compatibility
Product 1: Desloc D110 Plus Smart Lock
4.5

Supports common backsets (2-3/8 and 2-3/4), matching typical residential door prep.

Product 2: 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.

Battery
Product 1: Desloc D110 Plus Smart Lock
3.9

Battery life is commonly quoted around six months on four AA cells (often not included), with Wi-Fi potentially increasing drain; multiple reviews highlighted USB-C emergency power, and one follow-up credited firmware updates and a Wi-Fi toggle with improving battery impact.

Product 2: 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.

Bluetooth
Product 1: Desloc D110 Plus Smart Lock
3.5

Bluetooth appears mainly in setup and onboarding flows for pairing and Wi-Fi bridging, rather than as the primary day-to-day control method.

Product 2: 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.

Build quality and durability
Product 1: Desloc D110 Plus Smart Lock
3.9

Build is generally described as solid for the price, with BHMA Grade 3 positioning and a mix of metal and plastic; one review questioned overall construction quality and budget compromises.

Product 2: 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.

Door-sense
Product 1: Desloc D110 Plus Smart Lock
1.5

Reviews repeatedly note the lack of a true door sensor, meaning auto-lock can extend the bolt even if the door is open, which can be inconvenient and potentially hard on door trim.

Product 2: 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.

Door compatibility (deadbolt fit)
Product 1: Desloc D110 Plus Smart Lock
4.0

Fits standard US deadbolt prep in most cases, including common door thickness ranges, but one reviewer noted it is less ideal for very thick doors without modification.

Product 2: 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.

Existing hardware reuse
Product 1: Desloc D110 Plus Smart Lock
3.5

This is a full deadbolt replacement, so you generally swap existing hardware; one reviewer chose to reuse a preferred deadbolt piece, but reuse options are limited versus retrofit-style locks.

Product 2: 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.

Feature additions via updates
Product 1: Desloc D110 Plus Smart Lock
4.5

Firmware updates are a recurring theme in longer-term coverage, including improvements like a Wi-Fi toggle, better Wi-Fi stability, reduced power usage, and privacy tweaks like masking passcode entry.

Product 2: 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.

Fingerprint
Product 1: Desloc D110 Plus Smart Lock
4.2

Fingerprint access is a headline feature and is often described as quick and accurate for the price, with support for up to about 50 fingerprints; one review found it hit-or-miss and requiring multiple scans.

Product 2: 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).

Finish durability
Product 1: Desloc D110 Plus Smart Lock
4.0

A 90-day outdoor follow-up and several user impressions suggest the exterior holds up reasonably well, but long-term finish wear is still lightly documented.

Product 2: eufy Video Smart Lock S330
No score yet
Guest Codes and Access
Product 1: Desloc D110 Plus Smart Lock
4.2

Guest access options commonly include always-on users, scheduled access windows, and one-time or one-pass codes, making it suitable for cleaners, visitors, and rentals.

Product 2: 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.

Hub requirement
Product 1: Desloc D110 Plus Smart Lock
5.0

No hub or separate gateway is required for remote features because Wi-Fi is integrated.

Product 2: 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.

Installation and Setup
Product 1: Desloc D110 Plus Smart Lock
4.1

Most reviewers found installation straightforward and comparable to swapping a standard deadbolt, but one hands-on test reported overly tight/stiff hardware that made mounting difficult and another noted a short internal cable that can complicate assembly.

Product 2: 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.

Jam detection
Product 1: Desloc D110 Plus Smart Lock
No score yet
Product 2: 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.

Key override reliability
Product 1: Desloc D110 Plus Smart Lock
4.1

Backup entry is well covered via a traditional keyway, and several reviews also liked the USB-C emergency power option as an extra failsafe when batteries die.

Product 2: eufy Video Smart Lock S330
No score yet
Keypad
Product 1: Desloc D110 Plus Smart Lock
4.0

The backlit touchscreen keypad is usually described as clear and usable, and privacy features like anti-peeping or masked digits are appreciated; one review reported slow wake-up behavior requiring extra taps.

Product 2: 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.

Lock/unlock speed
Product 1: Desloc D110 Plus Smart Lock
3.8

Speed is often praised, especially for fingerprint unlock and remote commands, but one critical review found the keypad slow to wake and fingerprint reads inconsistent, and another noted it is not the fastest compared with pricier locks.

Product 2: 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.

Locking motor
Product 1: Desloc D110 Plus Smart Lock
3.8

The motor is generally described as smooth and reasonably quiet, but over-tightening during install can cause the bolt to struggle to slide smoothly.

Product 2: 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.

Locking reliability
Product 1: Desloc D110 Plus Smart Lock
4.3

Day-to-day locking/unlocking is generally reliable across reviews, including schedules and routines, though one reviewer characterized overall operation as only just OK despite not seeing jamming in testing.

Product 2: 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).

Notifications
Product 1: Desloc D110 Plus Smart Lock
3.8

Notifications are available for lock activity and some alarm states, but experiences vary: some reviewers wanted push alerts over email or found certain emergency emails unreliable.

Product 2: 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.

Physical attack resistance
Product 1: Desloc D110 Plus Smart Lock
3.0

Physical robustness is most often framed around BHMA Grade 3, which is a baseline residential-grade rating; it is not positioned as a high-security, hardened deadbolt.

Product 2: eufy Video Smart Lock S330
No score yet
Remote access
Product 1: Desloc D110 Plus Smart Lock
4.1

Remote locking/unlocking, status checks, and managing users from anywhere are consistently highlighted as strong points when the lock has a stable Wi-Fi connection.

Product 2: 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.

Security features (encryption)
Product 1: Desloc D110 Plus Smart Lock
4.0

Security features mentioned include anti-peeping PIN entry, vacation-style restriction modes, failed-attempt lockouts, and anti-hijacking or SOS-style alerts; some sources also mention encrypted fingerprint storage, but overall physical security is positioned as budget-grade.

Product 2: 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.

Smart-home integration (Alexa, Google, Siri, HomeKit, Matter, Thread)
Product 1: Desloc D110 Plus Smart Lock
2.9

Smart-home support is consistently limited to Alexa and Google ecosystems, with repeated callouts that Apple HomeKit and Matter support are not available.

Product 2: 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.

Tamper detection sensitivity
Product 1: Desloc D110 Plus Smart Lock
3.5

Anti-hijacking or alarm-style features are described as a way to signal distress or tampering, but detailed sensitivity or false-alarm behavior is not well documented in the reviews.

Product 2: eufy Video Smart Lock S330
No score yet
Touchscreen
Product 1: Desloc D110 Plus Smart Lock
4.0

Touch controls and illumination are generally well liked, but responsiveness can vary, with one hands-on review calling the interface sluggish to wake.

Product 2: 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.

User access management
Product 1: Desloc D110 Plus Smart Lock
4.2

User management is a strength, with support for multiple users, role-based sharing, and assigning different credentials per person.

Product 2: 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.

Value and Price
Product 1: Desloc D110 Plus Smart Lock
4.3

Many reviews frame the lock as strong value, especially when discounted under $100, due to built-in Wi-Fi and multiple entry methods, but one outlet argued the compromises (install quirks and scanner quality) reduce the perceived bargain.

Product 2: 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.

Voice control
Product 1: Desloc D110 Plus Smart Lock
4.0

Voice control via Alexa and Google is generally reliable for locking and, with a voice code, unlocking, but it does not provide the broader cross-platform benefits of Matter ecosystems.

Product 2: 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.

Weather resistance
Product 1: Desloc D110 Plus Smart Lock
3.9

Multiple reviews cite an IP54-style dust/splash rating and reported normal rain exposure without issue, though a few creator claims vary; overall it is best treated as weather resistant rather than fully waterproof.

Product 2: 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.

Wi-Fi
Product 1: Desloc D110 Plus Smart Lock
4.1

Built-in 2.4GHz Wi-Fi is a major advantage for remote access without extra hardware, but connection quality can affect responsiveness and battery use; updates and a Wi-Fi on/off toggle were noted as improvements in longer-term use.

Product 2: 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.