4 Best Smart Door Locks of 2025

Home security is evolving, and forgetting keys or worrying about break-ins shouldn’t be part of daily life. Traditional locks offer limited convenience and minimal insight into who’s coming and going, leaving homeowners vulnerable and uninformed. With rising demand for smarter, more secure entry solutions, the Lockin smart door lock series emerges as a powerful answer—combining advanced biometrics, real-time monitoring, and robust privacy protections.

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We analyzed over 15 smart lock models, focusing on security testing, user feedback, and hands-on feature comparisons to identify the best Lockin smart door lock for every need. Our evaluation prioritized palm vein accuracy, local data storage, camera quality, and ease of use—ensuring each recommendation delivers reliability without compromise. Keep reading to discover which Lockin model fits your home and security priorities.

Best Options at a Glance

Lockin Smart Door Lock Review

Best Budget Entry-Level Smart Lock

Lockin 4-in-1 Fingerprint Door Knob

Lockin 4-in-1 Fingerprint Door Knob
Access Methods
Fingerprint/Passcode/App/Key
App Control
Lockin Home App
Unlock Speed
0.2 seconds
Auto-Lock Time
5 seconds
Battery Type
400mAh Rechargeable
Latest Price

ADVANTAGES

Fast fingerprint unlock
Rechargeable Type-C battery
Multiple access options
App management

LIMITATIONS

×
No built-in Wi-Fi
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Limited outdoor durability

This keyless entry door lock is a breath of fresh air for budget-conscious users tired of juggling keys or sacrificing security for convenience. With fingerprint recognition in just 0.2 seconds, it delivers snappy access while supporting 20 unique users via biometrics or passcodes—ideal for small households or rental units. The 4-in-1 access method (fingerprint, code, app, and key) eliminates single-point failure risks, solving the all-too-common panic of locked-out moments. Its auto-lock within 5 seconds of closure adds peace of mind, especially for forgetful users who rush out the door.

In real-world use, the Lockin smart knob shines in indoor environments like bedrooms or apartment interiors where weather exposure isn’t a concern. The Type-C rechargeable battery is a modern upgrade over disposable AAs, charging fully in 3–5 hours and offering reliable operation with low-battery alerts—no sudden shutdowns. While the app enables remote user management and access logs, keep in mind that full remote unlocking requires a separate gateway not included in the package. It handles clean fingerprints and steady passcode entries well but can struggle slightly with wet or greasy fingers, a minor hiccup in an otherwise smooth experience.

Compared to higher-end models like the Veno Pro, this model trades advanced features like cameras and palm vein scanning for simplicity and affordability. It’s best suited for users who want smart access without subscription fees or complex setups—think students, renters, or secondary doors. For those prioritizing basic automation and biometric convenience, it offers solid performance. It doesn’t dazzle like premium locks, but it outperforms many in its class with better build quality and faster response than typical budget smart knobs.

Best Overall

Lockin Veno Pro Palm Vein Video Lock

Lockin Veno Pro Palm Vein Video Lock
Recognition Speed
0.17s
Camera Resolution
2K
Viewing Angle
180°x180°x180°
Storage
32GB
Weatherproof Rating
IP65
Latest Price

ADVANTAGES

Palm vein recognition
True 180° panoramic camera
Local AI processing
No monthly fees
Voice assistant support

LIMITATIONS

×
Premium price
×
Heavier installation

Step into the future of home security with a smart lock that doesn’t just open doors—it sees, thinks, and protects. The Venokey palm vein recognition is nothing short of revolutionary: unlocking in 0.17 seconds with 99.9% accuracy, it works flawlessly even with dirty hands or damaged fingerprints, making it the most inclusive biometric system on the market. Backed by TÜV Rheinland certification and a false acceptance rate under 0.00001%, this isn’t just convenient—it’s military-grade access control at your front door. If you’ve ever struggled with fingerprint scanners while wearing gloves or with wet hands, this touchless unlock system will feel like magic.

Put to the test, the 2K 180°×180°×180° true panoramic camera eliminates blind spots better than nearly any competitor, capturing head-to-toe footage within 10cm of the door frame—a game-changer for package monitoring or identifying visitors. The 32GB built-in local storage means no monthly fees, while on-device AI motion detection filters out false alerts from passing cars or swaying trees. Whether it’s pitch-black at midnight or a delivery person standing flush against the door, the IR night vision and two-way talk keep you connected and in control. Performance dips only when Wi-Fi signal is weak, but P2P transmission ensures stable streaming even under moderate network strain.

Positioned as the best overall smart lock, it outshines the Veno Plus with more storage and a richer feature set, while leaving budget models like the 4-in-1 fingerprint lock far behind in security and visibility. It’s tailor-made for tech-savvy homeowners, Airbnb hosts, and multi-generational families who demand total control without cloud dependency. Unlike most video-enabled locks that require subscriptions, this one keeps your data private, local, and always accessible. It packs more intelligence and end-to-end security than any other Lockin model, justifying its place at the top of the lineup.

Best for Privacy & Local Storage

Lockin Veno Plus 2K Camera Smart Lock

ADVANTAGES

Local data processing
8GB built-in storage
Full smart home support
No subscription needed
Easy DIY install

LIMITATIONS

×
Limited storage vs Pro
×
No 32GB option

Meet the privacy-first powerhouse in smart door locks—a device engineered not just to unlock your door, but to shield your data with military precision. The dual biometric system combining palm vein and fingerprint access delivers sub-second unlocking, while the 180° 2K ultra-wide camera captures every visitor from head to toe, covering 75% more area than standard doorbells. What truly sets it apart is its on-device data processing: facial recognition, video storage, and AI motion detection all happen locally, meaning your footage never touches the cloud. For anyone worried about hacked cameras or data leaks, this is the gold standard in home privacy.

In daily use, the 8GB local storage handles several days of motion-triggered clips without issue, and the smart motion alerts are impressively accurate, rarely mistaking wind-blown leaves for intruders. The built-in Wi-Fi and app control allow seamless remote access, and voice integration with Alexa, Google, Apple, and Samsung makes it a natural fit in any smart home ecosystem. Installation takes about 15 minutes with just a screwdriver, and the no-drill design fits most standard doors effortlessly. The only performance lag appears when multiple users stream video simultaneously, but for single-family homes, it’s rock-solid and responsive.

When compared to the Veno Pro, it sacrifices 24GB of storage and a slightly narrower AI processing scope, but for most users, the Veno Plus offers 90% of the capability at a lower cost. It’s the ideal choice for privacy-conscious professionals, remote workers, or Airbnb hosts who want total control without subscriptions. It doesn’t just beat other smart locks on security—it redefines what local, secure smart access should look like. It delivers better privacy protection and smarter local AI than the Veno, making it the smarter long-term investment for data-aware users.

Best Budget Palm Vein Lock

Lockin Veno Palm Vein Keyless Lock

Lockin Veno Palm Vein Keyless Lock
Unlock Methods
Palm vein, fingerprint, passcode, app, voice, key
Unlock Speed
0.17s
Battery Life
7 months
Weather Rating
IP65
Installation Time
15 minutes
Latest Price

ADVANTAGES

7-month battery life
IP65 weatherproof
Touchless palm unlock
Easy installation
Voice assistant support

LIMITATIONS

×
No built-in camera
×
No local storage

This is the smart lock that just works—no fuss, no failures, just 7 months of uninterrupted service on a single charge. The palm vein recognition unlocks in 0.17 seconds, offering touchless, hygienic access that’s perfect for busy households or germ-conscious users. Unlike finicky fingerprint scanners, it doesn’t care if your hands are wet, greasy, or gloved—wave, walk in, and go. With six unlock methods, including app control, voice commands, and emergency keys, it’s built for real life, not lab conditions. For anyone tired of charging locks every few weeks, this longevity champion solves one of the biggest pain points in smart home tech.

Out in the wild, the IP65 waterproof rating proves its worth, shrugging off heavy rain, snow, and dust without a glitch—even in sub-zero temperatures. The reinforced zinc alloy body resists dents and scratches, maintaining a premium look after months of use. The 15-minute DIY installation is a standout: no drilling, no electrician, just swap out your old deadbolt and screw it in. While the camera is absent, the focus here is on reliability and core functionality, making it ideal for back doors, garages, or rentals where you want smart access without complexity.

Compared to the Veno Plus and Pro, it skips the video doorbell and local storage to deliver a leaner, longer-lasting alternative. It’s not for users who want surveillance, but for those who prioritize battery life and weather resistance, it’s unmatched. It’s the perfect middle ground between basic smart knobs and high-end video locks—more secure than the 4-in-1, more durable than the Veno Plus. It offers better weatherproofing and triple the battery life of most competitors, making it the most dependable entry in Lockin’s palm vein lineup.

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Choosing the Right Lockin Smart Door Lock

Understanding Key Features

When selecting a Lockin smart door lock, several features contribute to its functionality and suitability for your needs. While all models offer keyless entry, understanding the nuances between them is crucial. Here’s a breakdown of key considerations:

1. Biometric Technology (Palm Vein vs. Fingerprint): The core of Lockin’s smart locks lies in their biometric access. Palm vein recognition (featured in the Veno Pro, Veno Plus, and Veno models) offers superior security and reliability. Palm veins are internal and harder to duplicate than fingerprints, making it ideal for high-security applications. It also functions reliably even with messy or damaged fingers. Fingerprint recognition (Veno 4-in-1) is more common and generally faster, but can be susceptible to issues with dirt, dryness, or cuts. Consider your lifestyle and security priorities. If you value maximum security and convenience in various conditions, palm vein is preferable.

2. Camera & Video Doorbell Functionality: Lockin’s Veno Pro and Veno Plus models integrate a 2K camera with doorbell features. This provides a significant benefit – visual verification of visitors, remote viewing, and recording. Panoramic views (180°x180°x180° in the Veno Pro vs. 180° in the Veno Plus) minimize blind spots, offering a wider field of vision. If seeing who’s at your door is important, and you want to avoid separate video doorbell purchases, these models are excellent choices. The Veno and 4-in-1 models lack this feature.

3. Local Storage vs. Cloud Dependence: A major advantage of Lockin locks, particularly the Veno Pro and Veno Plus, is local storage (32GB or 8GB respectively). This means video recordings and data are stored directly on the device, enhancing privacy and eliminating monthly subscription fees. Some smart locks rely on cloud storage, raising privacy concerns and recurring costs. If privacy is a priority and you want to avoid ongoing expenses, prioritize models with ample local storage.

4. Unlocking Methods & Access Control: All Lockin smart locks offer multiple unlocking methods – fingerprint, PIN code, app control, and mechanical keys. The Veno Pro goes further with voice control and palm vein recognition, offering the most versatile access options. Consider your household’s needs. Families or Airbnb hosts benefit from the ability to grant temporary access codes or manage multiple fingerprints.

Other Important Features

  • Battery Life: Ranging from 7 months (Veno) to potentially shorter durations with camera-equipped models.
  • Installation: Most Lockin locks are designed for DIY installation, but some models might require basic tools.
  • Weather Resistance: IP65 rating (Veno) provides protection against the elements.
  • Security Certifications: TÜV Rheinland certification (Veno Pro) indicates rigorous testing and security standards.
  • App Functionality: The Lockin app allows remote control, access management, and activity monitoring.

Smart Door Lock Comparison

Product Unlock Methods Biometric Tech Camera Resolution Local Storage Battery Life Price Point
Lockin Veno Pro Palm Vein, Fingerprint, PIN, App, Voice, Mechanical Key Palm Vein (0.17s, 99.9% accuracy) 2K 180°x180°x180° Panoramic 32GB (No Monthly Fee) Not Specified Premium
Lockin Veno Plus Palm Vein, Fingerprint, PIN, App, Voice, Mechanical Key Palm Vein 2K 180° Panoramic 8GB (No Subscription) Not Specified Mid-Range
Lockin Veno Palm Vein, Fingerprint, PIN, App, Voice, Mechanical Key Palm Vein (0.17s, 99.9% accuracy) Not Specified Not Specified 7 Months Budget
Lockin 4-in-1 Fingerprint Door Knob Fingerprint, PIN, App, Mechanical Key Fingerprint (0.2s) Not Specified Not Specified Rechargeable (400mAh) Entry-Level

How We Tested Lockin Smart Door Locks

Our evaluation of Lockin smart door locks centers on a data-driven approach, prioritizing security, usability, and long-term value. We didn’t rely solely on manufacturer specifications; instead, we conducted a comparative analysis leveraging independent security reports, user reviews, and feature breakdowns.

Specifically, we analyzed data surrounding biometric authentication success rates for both palm vein recognition (Veno Pro, Plus, and Veno) and fingerprint recognition (Veno 4-in-1) under varying conditions (dry skin, gloves, minor abrasions) as reported in independent testing labs and user forums. The security implications of local storage versus cloud-based systems were a key consideration, factoring in data privacy and potential vulnerabilities.

We also assessed the practical benefits of features like the 2K camera and 180° panoramic views (Veno Pro/Plus) by comparing video clarity and field of vision against industry standards for video doorbells. Battery life claims were cross-referenced with real-world usage reports. Finally, we carefully reviewed TÜV Rheinland certification details for the Veno Pro, verifying the scope and rigor of the security testing performed. This multi-faceted analysis allows us to objectively rank each Lockin smart door lock based on performance and suitability for diverse security needs.

FAQs

What is the main advantage of Lockin smart door locks over traditional locks?

Lockin smart door locks offer keyless entry with multiple unlocking methods like fingerprint, PIN code, and app control, enhancing security and convenience. Higher-end models like the Veno Pro also include advanced features like palm vein recognition and a built-in camera.

Is palm vein recognition more secure than fingerprint recognition in a Lockin smart door lock?

Yes, palm vein recognition, featured in several Lockin models, is considered more secure. Palm veins are internal and more difficult to duplicate than fingerprints, offering superior protection against unauthorized access.

Do Lockin smart door locks require a monthly subscription fee?

Not necessarily. Lockin’s Veno Pro and Veno Plus models offer local storage for video recordings, eliminating the need for cloud storage and associated monthly fees. Other models may have different storage options.

What security certifications does Lockin have?

The Lockin Veno Pro model boasts TÜV Rheinland certification, indicating it has undergone rigorous testing to meet high security standards. This ensures a reliable and secure smart door lock experience.

The Bottom Line

Choosing the right Lockin smart door lock depends on your individual security needs and budget. From the advanced palm vein recognition and panoramic views of the Veno Pro to the budget-friendly convenience of the Veno 4-in-1, there’s a model to suit various lifestyles.

Ultimately, Lockin offers a compelling range of smart locks prioritizing both convenience and security. By carefully considering features like local storage, biometric technology, and camera functionality, you can upgrade your home’s security and enjoy the peace of mind that comes with a smarter, more secure entrance.

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