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Best Buy customers often prefer the following products when searching for modern alarms.

Alarm systems are among the most important security investments you can make for your home. Browse the top-ranked list of modern alarms below along with associated reviews and opinions.

Main Results
  1. Swann - ActiveResponse Personal Safety Alarm Keychain with 110dB Emergency Siren - Black - Front_Zoom
    Top comment

    "Low noise Personal alarm...The instructions have you scan the QR code on the bottom of the alarm to synchronize it to the phone. Once the alarm is synchronized to the phone you can complete the testing of the device. ...More than just a personal alarm...The personal alarms are really easy to link to your phone and set up. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    Top comment

    "Low noise Personal alarm...The instructions have you scan the QR code on the bottom of the alarm to synchronize it to the phone. Once the alarm is synchronized to the phone you can complete the testing of the device. ...More than just a personal alarm...The personal alarms are really easy to link to your phone and set up. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    See all Home Alarms & Sensors
  2. Swann - ActiveResponse Personal Safety Alarm Keychain with 110dB Emergency Siren - Aqua - Front_Zoom
    Top comment

    "Great personal alarms!...There is an app to setup and monitor the alarms. You can choose to notify someone when the alarm is triggered. ...Alarm is connected to an app and is a subscription as well. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    Top comment

    "Great personal alarms!...There is an app to setup and monitor the alarms. You can choose to notify someone when the alarm is triggered. ...Alarm is connected to an app and is a subscription as well. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    See all Home Alarms & Sensors
  3. Swann - AllSecure 4K Wireless Security Kit with 3 Wire-Free Cameras, No Monthly Fees, Local Storage, 2-Way Audio, Night Vision - White - Front_Zoom
    Top comment

    "With the two-way audio, I can hold a conversation with anyone within viewing range. There is a manual alarm that is very loud and screeching to scare off intruders. ...While this system is set up for a 4K playback it is backwards compatible with any modern monitor. The playback to my phone was very clear even at night. "

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    Product Description

    Swann's AllSecure4K+ Wireless Security System is always charged and always secure. The 100% wireless cameras setup in minutes using rechargeable battery power and offering crystal clear 4K color video day and night. Actively prevent unwanted activity with True Detect heat and motion-sensing to trigger recording, spotlights, sirens and mobile alerts. Engage in two-way talk, see what’s happening, arm and disarm the system using the Swann Security app.The 4K+ Power Hub has a charging bay, and a spare battery ensuring there is never any ‘downtime’ - just hot swap the batteries to and from the cameras as needed. The spare battery also provides back-up power to the Hub for up to 5 hours in the event of an onsite power outage. Retain up to 2 years of clips at any time on the Hub’s large 1TB local hard drive plus cloud backup. Recording is always free and there are no monthly fees. The system is also expandable as you can connect up to 8 cameras to the 4K+ Power Hub if needed. There’s also offline mode, with the option to view on a TV or monitor and record without internet.
    See all Home Security Systems
    Top comment

    "With the two-way audio, I can hold a conversation with anyone within viewing range. There is a manual alarm that is very loud and screeching to scare off intruders. ...While this system is set up for a 4K playback it is backwards compatible with any modern monitor. The playback to my phone was very clear even at night. "

    See all customer reviews

    Product Description

    Swann's AllSecure4K+ Wireless Security System is always charged and always secure. The 100% wireless cameras setup in minutes using rechargeable battery power and offering crystal clear 4K color video day and night. Actively prevent unwanted activity with True Detect heat and motion-sensing to trigger recording, spotlights, sirens and mobile alerts. Engage in two-way talk, see what’s happening, arm and disarm the system using the Swann Security app.The 4K+ Power Hub has a charging bay, and a spare battery ensuring there is never any ‘downtime’ - just hot swap the batteries to and from the cameras as needed. The spare battery also provides back-up power to the Hub for up to 5 hours in the event of an onsite power outage. Retain up to 2 years of clips at any time on the Hub’s large 1TB local hard drive plus cloud backup. Recording is always free and there are no monthly fees. The system is also expandable as you can connect up to 8 cameras to the 4K+ Power Hub if needed. There’s also offline mode, with the option to view on a TV or monitor and record without internet.
    See all Home Security Systems
    See all Home Security Systems
  4. SimpliSafe - 2 Camera Outdoor Wireless Security System with 5 Sensors - White - Front_Zoom
    Top comment

    "Growing up, I have always had an alarm system in my home. It was one of those hardwired systems. ...Great alarm"

    See all customer reviews

    Product Description

    SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. And, it’s backed by optional 24/7 professional monitoring—experts who are ready to dispatch emergency help immediately. That’s the unmatched combination that separates SimpliSafe Home Security from the others. Our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 9-piece wireless security bundle provides 24/7 protection. The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection and includes a back up battery that lasts up to 24 hours and a loud, 95 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. The Wireless Outdoor Security cameras (2 total) keep watch with a 140 degree field of view, 1080p HD resolution and color night vision, and include 2-way audio so you can tell unwanted guests that they're being watched. The Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And the Motion Sensor is designed for human detection, not pet detection. Advanced security, whole home protection. There's no safe like SimpliSafe.
    See all Home Security Systems
    Top comment

    "Growing up, I have always had an alarm system in my home. It was one of those hardwired systems. ...Great alarm"

    See all customer reviews

    Product Description

    SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. And, it’s backed by optional 24/7 professional monitoring—experts who are ready to dispatch emergency help immediately. That’s the unmatched combination that separates SimpliSafe Home Security from the others. Our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 9-piece wireless security bundle provides 24/7 protection. The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection and includes a back up battery that lasts up to 24 hours and a loud, 95 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. The Wireless Outdoor Security cameras (2 total) keep watch with a 140 degree field of view, 1080p HD resolution and color night vision, and include 2-way audio so you can tell unwanted guests that they're being watched. The Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And the Motion Sensor is designed for human detection, not pet detection. Advanced security, whole home protection. There's no safe like SimpliSafe.
    See all Home Security Systems
    See all Home Security Systems
  5. Google - Nest Protect 2nd Generation (Battery) Smart Smoke/Carbon Monoxide Alarm - White - Angle_Zoom
    Top comment

    "Sort of pricey but, I suppose I’ll pay for the comfort of having modern smoke alarms. I bought these since my old school ones like to randomly go off when a spider gets into the alarm....I always wanted this modern smoke and CO2 alarm it's very advanced and you can't go wrong with this alarm."

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    Product Description

    Nest Protect Smoke and Carbon Monoxide Alarm - 2nd Generation (Battery): Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "Sort of pricey but, I suppose I’ll pay for the comfort of having modern smoke alarms. I bought these since my old school ones like to randomly go off when a spider gets into the alarm....I always wanted this modern smoke and CO2 alarm it's very advanced and you can't go wrong with this alarm."

    See all customer reviews

    Product Description

    Nest Protect Smoke and Carbon Monoxide Alarm - 2nd Generation (Battery): Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  6. Google - Nest Protect 2nd Generation Smart Smoke/Carbon Monoxide Wired Alarm - White - Angle_Zoom
    Top comment

    "Very stylish and modern....This modern smoke alarm works better than the old ones. "

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    Product Description

    Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home. This hardwired version is suitable for homes with existing hardwired smoke or CO detectors.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "Very stylish and modern....This modern smoke alarm works better than the old ones. "

    See all customer reviews

    Product Description

    Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home. This hardwired version is suitable for homes with existing hardwired smoke or CO detectors.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  7. Ring - Alarm Pro Base Station - White - Front_Zoom

    Model: B08HSRZ58F
    SKU: 6481922
    Top comment

    "This security system is incredibly easy to install, and give me a great sense of protection in my home. Sleek and modern, this is not a bulky system from yesteryear, but a cutting edge tech forward system. ...Ring Alarm Base Pro...Ring alarm base pro set up quickly and gave us immediate connection to police and fire monitoring"

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    Product Description

    Alarm Pro Base Station lets you upgrade your existing Ring Alarm system or create a new Alarm Pro system with a built-in eero Wi-Fi 6 router to help keep your network secure. Add Ring Alarm security devices to Alarm Pro Base Station to help protect your entire home. Stay online with supported WiFi speeds up to 900 Mbps, and coverage of up to 1500 sq. ft.* Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered**, on-demand emergency support with optional Alarm Professional Monitoring***, and 24/7 Backup Internet that keeps your compatible devices connected if the primary internet goes out.****
    See all Home Security Systems
    Top comment

    "This security system is incredibly easy to install, and give me a great sense of protection in my home. Sleek and modern, this is not a bulky system from yesteryear, but a cutting edge tech forward system. ...Ring Alarm Base Pro...Ring alarm base pro set up quickly and gave us immediate connection to police and fire monitoring"

    See all customer reviews

    Product Description

    Alarm Pro Base Station lets you upgrade your existing Ring Alarm system or create a new Alarm Pro system with a built-in eero Wi-Fi 6 router to help keep your network secure. Add Ring Alarm security devices to Alarm Pro Base Station to help protect your entire home. Stay online with supported WiFi speeds up to 900 Mbps, and coverage of up to 1500 sq. ft.* Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered**, on-demand emergency support with optional Alarm Professional Monitoring***, and 24/7 Backup Internet that keeps your compatible devices connected if the primary internet goes out.****
    See all Home Security Systems
    See all Home Security Systems
  8. Ring - Alarm Security Kit 5-Piece (2nd Gen) - White - Front_Zoom
    Top comment

    "So far everything has worked perfectly. The door alarm works great. I enjoy how sleek and modern the key pad and the alarm box look....Excellent product quality and modern look easy to install"

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    Product Description

    Help secure your home against break-ins, and more, with Ring Alarm. When armed, Ring Alarm's siren sounds whenever doors or windows open and when motion is detected at home. Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered*, on-demand emergency support with optional Alarm Professional Monitoring**, and other benefits that keep your security ready for anything.
    See all Home Security Systems
    Top comment

    "So far everything has worked perfectly. The door alarm works great. I enjoy how sleek and modern the key pad and the alarm box look....Excellent product quality and modern look easy to install"

    See all customer reviews

    Product Description

    Help secure your home against break-ins, and more, with Ring Alarm. When armed, Ring Alarm's siren sounds whenever doors or windows open and when motion is detected at home. Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered*, on-demand emergency support with optional Alarm Professional Monitoring**, and other benefits that keep your security ready for anything.
    See all Home Security Systems
    See all Home Security Systems
  9. SimpliSafe - Indoor Home Security System (8-piece) - White - Front_Zoom
    Top comment

    "Interesting alarm set...It is sophisticated, modern and stylish....good simple alarm...Good alarm, simple to install, decent monthly plan"

    See all customer reviews

    Product Description

    SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. And, it’s backed by optional 24/7 professional monitoring—experts who are ready to dispatch emergency help immediately. That’s the unmatched combination that separates SimpliSafe Home Security from the others. At SimpliSafe, we believe everyone deserves to feel safe at home. That's why our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 8-piece wireless security bundle provides 24/7 protection. The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection and includes a back up battery that lasts up to 24 hours and a loud, 95 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And Motion Sensors (2 total) are designed for human detection, not pet detection. Advanced security, whole home protection. There's no safe like SimpliSafe.
    See all Home Security Systems
    Top comment

    "Interesting alarm set...It is sophisticated, modern and stylish....good simple alarm...Good alarm, simple to install, decent monthly plan"

    See all customer reviews

    Product Description

    SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. And, it’s backed by optional 24/7 professional monitoring—experts who are ready to dispatch emergency help immediately. That’s the unmatched combination that separates SimpliSafe Home Security from the others. At SimpliSafe, we believe everyone deserves to feel safe at home. That's why our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 8-piece wireless security bundle provides 24/7 protection. The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection and includes a back up battery that lasts up to 24 hours and a loud, 95 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And Motion Sensors (2 total) are designed for human detection, not pet detection. Advanced security, whole home protection. There's no safe like SimpliSafe.
    See all Home Security Systems
    See all Home Security Systems
  10. Ring - Alarm 8-Piece Security Kit - White - Front_Zoom

    Model: 4K18SZ-0EN0
    SKU: 6405070
    Top comment

    "Great alarm system...Great product and easy to use. I love the modern look. Very functionalable...Great alarm system for homes!! Good alarms at home pretty loud"

    See all customer reviews

    Product Description

    Help secure your home against break-ins, and more, with Ring Alarm. When armed, Ring Alarm's siren sounds whenever doors or windows open and when motion is detected at home. Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered*, on-demand emergency support with optional Alarm Professional Monitoring**, and other benefits that keep your security ready for anything.
    See all Home Security Systems
    Top comment

    "Great alarm system...Great product and easy to use. I love the modern look. Very functionalable...Great alarm system for homes!! Good alarms at home pretty loud"

    See all customer reviews

    Product Description

    Help secure your home against break-ins, and more, with Ring Alarm. When armed, Ring Alarm's siren sounds whenever doors or windows open and when motion is detected at home. Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered*, on-demand emergency support with optional Alarm Professional Monitoring**, and other benefits that keep your security ready for anything.
    See all Home Security Systems
    See all Home Security Systems
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