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DESLOC - K120 Smart Lock with Up to 16 Months Battery Life, Built-in WiFi, 3D Fingerprint Keyless Entry Door Lock - Silver

Model: K120-S
SKU: 12652200
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About this product

DESLOC K120 is built for smarter, longer-lasting security. Powered by a 15,000mAh rechargeable battery, it delivers up to 16 months of use on a single charge, with low-battery alerts, ultra-save mode, and a built-in Type-C emergency charging cable for added peace of mind. GPT-powered 3D fingerprint recognition unlocks quickly and accurately, even for dry, wet, or shallow fingerprints, while built-in Wi-Fi lets you lock, unlock, monitor activity, and share access remotely—no hub required. With Landlord Mode for rentals and Airbnb, IP65 weather protection, BHMA Grade 3 security, and easy 10-minute installation, K120 is designed for reliable everyday access and long-term convenience.

Color

Silver

Highlights

Features

  • 16-Month Battery Life with Type-C Emergency Charging

    Powered by a 15,000mAh rechargeable battery for up to 16 months of use on a single charge. When power drops below 5%, Low-Battery Ultra-Save Mode automatically activates, extending standby up to 12 months to help prevent lockouts. Real-time battery monitoring and low-battery alerts keep power status predictable, while the built-in Type-C emergency charging port provides backup access when needed.

  • GPT Fingerprint Unlock with 3D Precision

    Powered by the GPT Fingerprint Smart Algorithm, which accurately recognizes dry fingers, wet fingers, shallow prints, and elderly fingerprints. Uses 3D Precision Recognition with a false recognition rate below 1/1,000,000. Fingerprint data is stored locally on the device to protect user privacy, while the adaptive algorithm improves accuracy over time.

  • Built-in Wi-Fi & Family Care Alerts

    Built-in Wi-Fi — no hub needed. Remotely lock/unlock, get real-time alerts, and view access history via app. Family Care Alerts notify you if someone doesn't arrive home as expected. Landlord Mode offers group management, flexible access sharing, and temporary scheduling — perfect for rentals, Airbnb, and multi-user homes. Vacation and Do Not Disturb modes available.

  • Built for Stability — IP65 & BHMA Grade 3

    Auto-Lock detects whether the door is actually closed, preventing false lock status when left ajar. Anti-peek passcode lets you add random digits around your real code to block onlookers. Anti-hijacking fingerprint or PIN instantly alerts designated contacts in an emergency. IP65 weather resistance handles extreme temperatures. BHMA Grade 3 certified for proven durability, pressure, and environmental performance.

  • Easy Installation & Reliable Support

    Installs in about 10 minutes with all necessary accessories included. Automatic door direction detection for left- or right-opening doors — no manual configuration required. Backed by reliable after-sales support for a smooth setup and long-term peace of mind.

Specifications

  • Color Finish
    Silver
    Lock Type
    Deadbolt
    Lock/Unlock Mechanism
    App, Fingerprint, Touchscreen, Voice assistant
    Power Source
    Battery-powered
    Installation Type
    Replacement
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Reviews

Rating 4.7 out of 5 stars with 3 reviews

5 star rating. 2 reviews4 star rating. 1 review
100% would recommend to a friend

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Ease in life with great lock

    I recently installed this smart door lock with 3D fingerprint recognition, and I’ve been very impressed with both the installation process and its overall performance. The instructions were clear, and all the necessary hardware was included. Installation took me about 30–45 minutes using only basic tools, and replacing my old deadbolt was straightforward. The 3D fingerprint reader is fast and accurate. It recognizes my fingerprint almost instantly, even if my hands are slightly damp, and I haven’t experienced any failed scans during normal use. It’s much more convenient than carrying keys or remembering a code. The lock feels sturdy and well-built, and the app was easy to connect for managing access and checking lock status. I also like being able to create temporary access for guests without handing out physical keys. Overall, this smart lock offers a great combination of security, convenience, and easy installation. If you’re looking for a reliable smart lock with responsive fingerprint access, this is an excellent choice.

    This review is from DESLOC - K120 Smart Lock with Up to 16 Months Battery Life, Built-in WiFi, 3D Fingerprint Keyless Entry Door Lock - Black

    Posted by ANDREWD

  • Rated 5 out of 5 stars

    Great lock that is easy to install and use

    This is a great lock that is very easy to install and set up. If you have ever installed a deadbolt before you can install this without any issue as the process is almost exactly the same. After the physical install the setup with the app is also easy as is configuring security options per user for passcodes, fingerprints, etc. I have hda no problem with installing or using now that it has been in place for the last week. This is a great choice if you don't want to have to worry about physical keys and/or need to grant temporary access to someone like a house cleaner.

    This review is from DESLOC - K120 Smart Lock with Up to 16 Months Battery Life, Built-in WiFi, 3D Fingerprint Keyless Entry Door Lock - Black

    Posted by RICHARDJ

  • Rated 4 out of 5 stars

    Great so far

    Like the one concept, battery life so far. Finger print reader.

    This review is from DESLOC - K120 Smart Lock with Up to 16 Months Battery Life, Built-in WiFi, 3D Fingerprint Keyless Entry Door Lock - Black

    Posted by ALEXJ

See all customer reviews

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Pros for DESLOC - K120 Smart Lock with Up to 16 Months Battery Life, Built-in WiFi, 3D Fingerprint Keyless Entry Door Lock - Silver
There were no pros for this product—There were no pros for this product—Ease of use, Installation, Overall Performance, Design, ConnectivityThere were no pros for this product—
Cons for DESLOC - K120 Smart Lock with Up to 16 Months Battery Life, Built-in WiFi, 3D Fingerprint Keyless Entry Door Lock - Silver
There were no cons for this product—There were no cons for this product—Battery LifeThere were no cons for this product—

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