Average score
Product 1: Desloc D110 Plus Smart Lock
3.9
Product 2: eufy FamiLock S3 Max Smart...
4.2
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 FamiLock S3 Max Smart...
4.4

Reviewers consistently highlight the in-app Events timeline as a strong audit trail: it shows lock/unlock actions plus motion and doorbell events with thumbnails, making it easy to see what happened and when.

Alarm/siren loudness (if included)
Product 1: Desloc D110 Plus Smart Lock
No score yet
Product 2: eufy FamiLock S3 Max Smart...
4.1

The built-in speaker is generally described as clear and loud enough for doorbell sounds and two-way talk, with adjustable volume. However, it does not tie into a traditional wired chime; most setups rely on Alexa/Echo devices or a HomeBase for indoor chimes.

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 FamiLock S3 Max Smart...
4.2

The Eufy app offers deep control (live view, event playback, access rules, power modes, and camera settings) and works reliably, but multiple reviews call it sprawling and time-consuming to learn because it manages many Eufy device categories.

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 FamiLock S3 Max Smart...
4.4

Auto-lock is widely praised for flexibility: you can set short delays and schedules, and it generally waits for the door to be closed before engaging. A few notes suggest edge cases if the door is only slightly ajar, so tuning is worthwhile.

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 FamiLock S3 Max Smart...
4.4

Wrong-try protection is repeatedly mentioned as a useful safeguard, with configurable lockouts after a set number of failed palm scans or PIN attempts.

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 FamiLock S3 Max Smart...
No score yet
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 FamiLock S3 Max Smart...
4.4

The dual-power design is a standout: a large rechargeable 15,000mAh pack plus AAA backup batteries. Reviews like the concept for avoiding lockouts during charging, but real-world endurance varies with video settings, and heavy surveillance use can drain the main battery much faster.

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 FamiLock S3 Max Smart...
4.0

Bluetooth is present for connectivity and setup, but reviews focus more on Wi-Fi behavior than Bluetooth range or stability.

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 FamiLock S3 Max Smart...
4.5

Build quality is frequently described as robust and premium, backed by Grade 1 durability/security claims. Multiple reviewers note the lock is physically large and heavy, reflecting the added camera and screen hardware.

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 FamiLock S3 Max Smart...
4.3

The lock’s door-sense behavior is commonly tied to its auto-lock feature, helping it avoid locking when the door is open. Some hands-on reviewers mention it can misinterpret a nearly closed door, so placement and calibration matter.

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 FamiLock S3 Max Smart...
3.7

Fit is generally standard for a deadbolt replacement, but the bulky exterior/interior escutcheons can be a visual and physical presence. Several reviews warn the interior screen is less useful on doors with glass, and screen or storm doors can obstruct the camera view or visitor interaction.

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 FamiLock S3 Max Smart...
No score yet
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 FamiLock S3 Max Smart...
No score yet
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 FamiLock S3 Max Smart...
4.4

Biometric access is a core strength, implemented here as palm-vein recognition. Reviews generally find it fast and accurate once you learn the hand position, though a few note it can be sensitive to angle or may need a wake-up touch in some conditions to save battery.

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 FamiLock S3 Max Smart...
4.3

A few reviewers note the exterior materials do a decent job resisting obvious smudges and fingerprints, helping the keypad area stay cleaner looking over time.

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 FamiLock S3 Max Smart...
4.5

Guest access is strong on paper and in testing, with support for many PINs, scheduled codes, and multiple palm enrollments, making it suitable for families and frequent visitors.

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 FamiLock S3 Max Smart...
4.0

A hub is not required for basic operation and remote control over Wi-Fi, but a HomeBase is repeatedly positioned as the path to expanded storage and smarter alerts (such as facial recognition) and can also act as an indoor chime. There are also reports that certain smart-home pairing flows work best when the lock is on Wi-Fi rather than routed through a hub.

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 FamiLock S3 Max Smart...
4.4

Installation is usually described as straightforward (often around 15–20 minutes) with app-based video guidance, though it involves extra wiring compared to simpler locks. A few reviewers experienced early firmware/setup hiccups or needed recalibration after install.

Jam detection
Product 1: Desloc D110 Plus Smart Lock
No score yet
Product 2: eufy FamiLock S3 Max Smart...
3.8

A few reviewers mention calibration and initial false jam/stuck behavior during setup; once calibrated, operation is typically stable.

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 FamiLock S3 Max Smart...
4.1

The hidden keyway under the doorbell button and the availability of an emergency USB-C power option are valued for backup entry. One reviewer noted the doorbell-button cover can be fiddly to reseat, but overall the mechanical override is seen as an important safety net.

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 FamiLock S3 Max Smart...
4.4

The keypad is widely viewed as responsive and easy to use, supporting many PINs and guest access patterns. Features like one-touch locking and optional scramble passcodes show up repeatedly as practical day-to-day conveniences.

Keyway quality
Product 1: Desloc D110 Plus Smart Lock
No score yet
Product 2: eufy FamiLock S3 Max Smart...
3.7

The keyway is cleverly concealed for aesthetics, though at least one review suggests the cover mechanism can be a bit finicky.

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 FamiLock S3 Max Smart...
4.5

Unlocking speed is a recurring strength, especially with palm access and remote commands, with many reviewers describing near-instant actuation once the lock is properly calibrated.

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 FamiLock S3 Max Smart...
4.5

Multiple reviews call out the interior controls that can drive the deadbolt motor (in addition to a manual thumbturn), which can be helpful for users who prefer a push-button action.

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 FamiLock S3 Max Smart...
4.4

Locking and unlocking are generally reported as reliable, with stable connectivity and consistent response to palm scans, PINs, and app commands once the device is installed and calibrated.

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 FamiLock S3 Max Smart...
4.4

Notifications are typically fast and useful, with human-focused motion alerts and quick access to live view or buffered clips. Some advanced alert types are described as dependent on adding a HomeBase.

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 FamiLock S3 Max Smart...
4.6

Physical security is positioned as a major selling point, with repeated references to Grade 1 certification and a solid, heavy build intended to withstand force and long-term use.

Pick/drill resistance (if rated)
Product 1: Desloc D110 Plus Smart Lock
No score yet
Product 2: eufy FamiLock S3 Max Smart...
4.1

Several reviewers reference anti-pick or encrypted-cylinder claims, but detailed independent pick/drill ratings are not commonly provided in the reviews; expectations are high given the Grade 1 positioning, but specifics are limited.

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 FamiLock S3 Max Smart...
4.4

Remote access is a strength thanks to built-in Wi-Fi and the Eufy app, typically without needing a separate bridge. Some apps require a press-and-hold action for lock/unlock to prevent accidental triggers.

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 FamiLock S3 Max Smart...
4.4

Security features mentioned across reviews include local video storage, scramble passcodes, configurable lockout after failed attempts, and encrypted communications. Privacy and local data storage are frequently framed as benefits versus subscription-first competitors.

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 FamiLock S3 Max Smart...
3.9

Matter support and voice assistant compatibility are consistently described as real but limited: third-party platforms generally expose basic lock controls, while camera, doorbell, and palm features remain primarily inside the Eufy ecosystem.

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 FamiLock S3 Max Smart...
4.3

Tamper and suspicious-activity protections show up via mentions of tamper alarms, loitering alerts, and wrong-try lockouts. Sensitivity and alert volume can usually be tuned in the app.

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 FamiLock S3 Max Smart...
4.4

The touch interface and capacitive keypad lighting are repeatedly praised for responsiveness and visibility, making PIN entry and one-touch actions easy at the door.

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 FamiLock S3 Max Smart...
4.6

User management is a highlight: per-person profiles, scheduled or one-time access, and tying palm scans to users are repeatedly described as well implemented.

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 FamiLock S3 Max Smart...
3.3

Price is the biggest recurring downside: most reviews call it expensive, though many also concede it can replace a separate smart lock and doorbell. Value improves most for users who genuinely want the integrated screen and consolidated hardware.

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 FamiLock S3 Max Smart...
4.2

Voice control is generally reported as responsive for basic locking and unlocking through Alexa, Google, and Siri, and some reviewers mention the ability to view the camera feed on compatible smart displays.

Warranty and support
Product 1: Desloc D110 Plus Smart Lock
No score yet
Product 2: eufy FamiLock S3 Max Smart...
4.0

Warranty details are mentioned as longer on the mechanical side than electronics, though hands-on support experiences are not deeply covered in the reviews.

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 FamiLock S3 Max Smart...
4.6

Weather resistance is reinforced by repeated references to an IP65 rating and outdoor placement suitability, though extreme conditions and long-term finish wear are not heavily tested across reviews.

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 FamiLock S3 Max Smart...
4.3

Wi-Fi connectivity is typically stable, but multiple sources note the lock operates on 2.4GHz networks. Some marketing and reviewer notes cite Wi-Fi 6, yet practical guidance still centers on 2.4GHz setup and the lack of 5GHz support.