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Smart Alarms

Smart alarms are a class of security devices that work with your smartphone to protect your home or business. They can be set up to alert you to a variety of events, including the presence fire, smoke or carbon monoxide in the surrounding areas. Browse the top-ranked list of smart alarms below along with associated reviews and opinions.

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  1. Ring - Alarm Motion Detector (2nd Gen) (2-Pack) - White

    SKU: J36CLVSCT4

    Product Description

    A pair of white, battery-powered motion detectors offering easy installation and instant security alerts via app.
    See all Motion Sensors & Detectors
    Your price for this item is $59.99

  2. Ring - Alarm Motion Detector (2nd Gen) (1-Pack) - White

    SKU: J36CLVSCTG

    Product Description

    A battery-powered white motion detector that provides instant alerts and easy installation for enhanced home security.
    See all Motion Sensors & Detectors
    Your price for this item is $29.99

  3. Amazon - Echo Spot (2024 release), Smart alarm clock with vibrant sound and Alexa - Glacier White

    SKU: J39HW6SJRZ

    Product Description

    A sleek Glacier White smart alarm clock with Alexa, vibrant sound, display screen, and smart home integration.
    See all Smart Speakers
    Your price for this item is $79.99

  4. Nintendo - Sound Clock: Alarmo - Red

    SKU: J7GSL57HL3

    Great alarm clock...Legitimately love this alarm clock. Ever since ive gotten it I haven't slept through an alarm. ...A Nintendo fan's alarm...The alarm works with many Nintendo characters/music as alarms...

    Product Description

    A playful red digital alarm clock featuring Nintendo soundscapes, motion-sensing snooze, and customizable wake-up scenes.
    See all Alarm Clock Radios
    Your price for this item is $109.99

  5. First Alert - Z-Wave Smoke and Carbon Monoxide Detector - White

    SKU: JJ8Z8VQ43T

    Product Description

    A battery-powered white alarm that detects both smoke and carbon monoxide, compatible with Z-Wave smart systems.
    See all Smoke & Carbon Monoxide Detectors
    Your price for this item is $64.99

  6. Ring - Alarm 8-Piece Security Kit - White

    SKU: J36CLVS279

    Product Description

    A white, app-compatible security kit with motion detection, battery backup, and real-time alerts for home protection.
    See all Home Security Systems
    Your price for this item is $249.99

  7. Nextbase - iQ 1K Smart Dash Cam with 4G/LTE and GPS - Black

    SKU: CLXX98HP2K

    Product Description

    A smart black dash cam with 4G/LTE, GPS, night vision, and real-time threat detection features.
    See all Dash Cameras
    Your price for this item is $337.99
    Save $162
    The previous price was $499.99

  8. Ring - Alarm Security Kit 9-Piece (2nd Gen) - White

    SKU: J39HW69Z65

    Alarm System...Rin alarm Pro

    Product Description

    A comprehensive white security kit featuring app compatibility, battery backup, and real-time alerts for home protection.
    See all Home Security Systems
    Your price for this item is $299.99

  9. Police Security - ALERT120 - Grey/Black

    SKU: JXQSLQYQHP

    Product Description

    A compact grey and black personal alarm keychain with 120dB siren, 500-lumen flashlight, and strobe.
    See all Flashlights & Portable Lights
    Your price for this item is $29.99

  10. Zewa - Thermometer - White

    SKU: JXS52J8CKX

    Product Description

    A white digital forehead thermometer offering non-touch, 1-second readings with a three-color LCD and fever alarm.
    See all Health Monitoring & Testing
    Your price for this item is $29.99
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In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.