8 Best Smoke Detectors That Alert Your Phone (November 2026)
The best smoke detectors that alert your phone include the BRK First Alert 9120BFF/ SMI100-AC Smoke Detector for hardwired reliability, the X-Sense Smoke Detector for low-maintenance rooms, and the X-Sense 6-Pack Interconnected Smoke and CO Detector for whole-home wireless coverage.
On this page (14 sections)
- Which smoke detector that alerts your phone is best?
- 1. BRK First Alert 9120BFF/ SMI100-AC Smoke Detector
- 2. X-Sense Smoke Detector
- 3. X-Sense 6-Pack Interconnected Smoke and CO Detector
- 4. FIRST ALERT BRK SC9120B Hardwired Smoke
- 5. Kidde Smoke Detector
- 6. eufy Security Smoke Alarm E10
- 7. Kidde Smoke & CO Detector
- 8. Heiman Smoke Detector
- How do smart smoke detectors work?
- Are hardwired smoke alarms better for phone alerts?
- Should you buy a smoke-only or smoke and CO alarm?
- What should you check before installing one?
- Final verdict on the best smoke detector that alerts your phone
The best smoke detector that alerts your phone is the eufy Security Smoke Alarm E10 when you have a compatible eufy HomeBase. For most homes, the better choice depends on whether you need remote notifications, hardwired power, wireless whole-home alerts, or smoke and carbon monoxide detection.
A phone alert is useful when you are away, but it does not replace loud alarms inside the home. People sleeping, cooking, or working in another room still need a local siren they can hear at once.
Start with what is a smoke alarm if you need to review placement, alarm types and basic coverage before choosing a connected model. We compared listed features, power options, detection types and connection methods.
Wireless interconnection lets alarms sound together in the home, while a connected system with an app can send a notification to a phone. Choose the alert path first, then check sensor type and power.
Our picks at a glance
-
1
Best for hardwired reliabilityBRK First Alert 9120BFF/ SMI100-AC Smoke Detector
9.7/10 our score
See it on Amazon -
2
-
3
Best for whole-home wireless coverageX-Sense 6-Pack Interconnected Smoke and CO Detector
9.3/10 our score
See it on Amazon
Which smoke detector that alerts your phone is best?
The eufy Security Smoke Alarm E10 is the only pick here with stated app alerts, but it requires a compatible HomeBase. The First Alert, X-Sense, Kidde and Heiman options focus on local alarms or alarm-to-alarm communication.
That distinction is the core of this roundup. A model can be excellent for whole home coverage and still not send a phone notification when nobody is home.
If you want a broader connected-system comparison, see our guide to best smart smoke detectors. Check the hub list before you order anything, as a smoke alarm that needs a specific base station will not help if your home does not already have that system.
Also check whether the alarm is standalone or interconnected. Standalone units warn people in that room, while interconnected units can make several alarms sound together.
Power is another dividing line in daily use. Hardwired models suit homes with suitable wiring, while battery models can go in more rooms without rewiring work.
Sensor type matters near kitchens, where photoelectric sensing is often chosen to reduce alarms from cooking fumes and steam.
For carbon monoxide coverage, look for a combination model rather than a smoke only unit. In short, phone alerts need a connected system, while local interconnection is a different feature with a different job.
| Product | Best for | Power | Sensor | Count | Our score |
|---|---|---|---|---|---|
| BRK First Alert 9120BFF/ SMI100-AC Smoke Detector | hardwired reliability | 120V AC with 9V battery backup | Ionization | 1 | 9.7 |
| X-Sense Smoke Detector | low-maintenance rooms | Photoelectric | 1 | 9.5 | |
| X-Sense 6-Pack Interconnected Smoke and CO Detector | whole-home wireless coverage | 6 | 9.3 | ||
| FIRST ALERT BRK SC9120B Hardwired Smoke | smoke and CO retrofit | AC/DC | 1 | 9.3 | |
| Kidde Smoke Detector | a 3-pack with sealed batteries | Photoelectric | 3 | 9.1 | |
| eufy Security Smoke Alarm E10 | compatible eufy HomeBase users | 1 | 8.8 | ||
| Kidde Smoke & CO Detector | voice hazard alerts | 2 AA alkaline batteries per alarm | 3 | 8.7 | |
| Heiman Smoke Detector | compact local interconnection | Photoelectric | 3 | 8.4 |
1. BRK First Alert 9120BFF/ SMI100-AC Smoke Detector
BRK First Alert 9120BFF/ SMI100-AC Smoke Detector: Best for hardwired reliability
- 120V AC power
- 9V battery backup
- Ionization sensor
- 85 dB alarm
This hardwired alarm suits homes that want battery backup and compatible BRK or First Alert interconnection.
Pros
- Hardwired power
- Battery backup
- Compatible alarm interconnection
Cons
- Not a direct phone-alert model
- Requires hardwired installation
The BRK First Alert 9120BFF/ SMI100-AC Smoke Detector is the highest-scoring pick for homes with compatible hardwired alarms. It uses 120V AC power with a 9V battery backup, so the alarm can continue operating during a power failure.
Its ionization sensor is intended for smoke from fast-flaming fires, and the audible alarm reaches 85 dB. A test and silence button gives you one control for routine checks and nuisance-alarm silencing.
This 1-pack can connect with compatible BRK or First Alert smoke detectors. That makes it a strong choice when your home already has a compatible hardwired network and you want alarms to sound together.
The battery backup is a practical safety feature for outages. It helps keep the alarm working when household power is off, which is exactly when coverage still matters.
Installation is the main trade-off with this type of alarm. You need suitable hardwired power and compatible wiring, so it is less flexible than a battery only unit for a new location.
This is not a direct phone-alert model, so it will not notify you through an app when you are away. Its strength is dependable local warning and interconnection with compatible alarms.
Check the existing wiring and alarm compatibility before replacing a unit. A like for like replacement is usually the simplest path for this hardwired design.
2. X-Sense Smoke Detector
X-Sense Smoke Detector: Best for low-maintenance rooms
- Sealed 10-year lithium battery
- Photoelectric sensor
- One-button test and silence
- No Wi-Fi or app alerts
A standalone photoelectric alarm for bedrooms, hallways and rentals where simple installation matters more than remote alerts.
Pros
- No wiring
- Sealed battery
- Photoelectric sensing
Cons
- No app alerts
- No wireless interconnection
The X-Sense Smoke Detector suits bedrooms, hallways, rentals and other rooms where no-wire installation and low maintenance matter most. Its sealed lithium battery is designed to last up to 10 years, which reduces battery changes and low-battery chirps.
The photoelectric sensor is designed to reduce unwanted alarms from everyday cooking fumes and steam. A single button handles self-tests and silence functions, keeping routine use simple.
This SD2J0AX is a standalone alarm. It does not use Wi-Fi, app alerts or a base station, and it does not wirelessly interconnect with other units.
That means each room relies on its own alarm. If you place one in a bedroom and another in a hall, they will not automatically sound together as a system.
For a rental or a room without wiring, the simple setup is a real advantage. You can mount it with the included hardware and avoid electrician work.
The sealed battery also helps with long term upkeep. You do not need to plan regular battery swaps during the stated battery life.
Choose it for simple local protection in a room without existing alarm wiring. Choose another model if you need every alarm to sound together or want remote notifications.
3. X-Sense 6-Pack Interconnected Smoke and CO Detector
X-Sense 6-Pack Interconnected Smoke and CO Detector: Best for whole-home wireless coverage
- 6 alarms
- Wireless interconnection
- Smoke and CO detection
- 10-year sealed battery
Six alarms sound together when one detects smoke, giving larger homes coordinated local alerts without rewiring.
Pros
- Six-unit system
- Smoke and CO detection
- 10-year batteries
Cons
- No phone alerts
- No base station connection
The X-Sense 6-Pack Interconnected Smoke and CO Detector is the strongest fit for whole-home wireless local coverage. Six alarms use wireless interconnection, so when one detects smoke, all connected alarms sound.
Each unit combines photoelectric smoke detection with electrochemical carbon monoxide detection. The alarms use sealed 10-year lithium batteries, and the set includes mounting brackets, screws, anchor plugs and a user manual.
This system does not use Wi-Fi or a base station. Wireless interconnection here means alarm-to-alarm communication, not smartphone access.
That setup suits larger homes where people may not hear a single alarm from another floor. When an alarm in one area sounds, the rest of the set can warn people elsewhere in the home.
The sealed batteries reduce routine maintenance across six units. You do not need to replace batteries in each alarm on a short cycle.
You can get coordinated alerts throughout the home, but you cannot rely on this set for a direct phone notification while away. It is a local coverage system, not a remote alert system.
For more connected alarm options, read best wifi interconnected smoke alarms. It explains the difference between wireless interconnection and Wi-Fi notification.
4. FIRST ALERT BRK SC9120B Hardwired Smoke
FIRST ALERT BRK SC9120B Hardwired Smoke: Best for smoke and CO retrofit
- Smoke and CO detection
- Hardwired power
- Battery backup
- Compatible First Alert and BRK interconnection
This hardwired combination alarm fits homes replacing compatible First Alert or BRK alarms and needing smoke plus CO coverage.
Pros
- Two-in-one detection
- Battery backup
- 10-year limited warranty
Cons
- Requires hardwired installation
- No direct app alert stated
The FIRST ALERT BRK SC9120B Hardwired Smoke is a good retrofit choice when you want smoke and carbon monoxide detection in one hardwired alarm. It uses AC/DC power and includes a 9V alkaline battery for backup.
This 1-pack can interconnect with compatible BRK and First Alert alarms. The combination design gives one location both smoke and CO detection, while the battery backup keeps the alarm operating during a power outage.
The SC9120B is different from a smoke-only hardwired alarm. Compare the details in First Alert SC9120B vs 9120B: What Is the Difference? if you are deciding between the combination model and the 9120B.
A combination unit can simplify coverage in a room where both hazards matter. It can also reduce the number of separate devices you need to mount and maintain.
The hardwired design still comes with installation limits. You need suitable wiring and compatible alarms for the interconnection to work as intended.
It does not have stated direct app alerts. Choose it for wired household coverage and two-in-one detection, not for remote phone notifications.
That makes it a fit for replacement in an existing First Alert or BRK setup. It is less suited to a home that wants app alerts as the main feature.
5. Kidde Smoke Detector
Kidde Smoke Detector: Best for a 3-pack with sealed batteries
- 3 alarms
- 10-year built-in battery
- Photoelectric sensor
- 85 dB alarm
Three battery-powered alarms help cover several rooms while avoiding routine battery replacement and low-battery chirps.
Pros
- Three-pack
- 10-year battery
- Red LED warning
Cons
- No phone alerts
- No CO detection
The Kidde Smoke Detector is best for covering several rooms with 3 battery-powered alarms and 10-year built-in batteries. Its photoelectric sensor is designed to reduce false alarms from cooking or steam while maintaining smoke detection.
Each alarm has an 85 dB audible alert and a red LED light. The built-in battery avoids regular battery replacement, which can make maintenance easier in bedrooms, hallways and apartments.
This is a smoke-only system. It does not provide carbon monoxide detection or stated phone alerts, so you may need separate CO coverage and another solution for remote notifications.
The 3-pack format helps you spread coverage without buying alarms one at a time. That can suit a small home or a few key rooms on one floor.
The red LED gives a visual cue in addition to the sound. That can help when an alarm is mounted in a dim hallway or near a bedroom door.
Because the batteries are built in for a long span, upkeep is simpler than with replaceable batteries. You still need to follow the manual for testing and end of life guidance.
Choose this 3-pack when you want long battery life across multiple rooms. If you need a First Alert combination alarm instead, see First Alert SC9120B vs SMICO100-AC: Which Should You Choose?.
6. eufy Security Smoke Alarm E10
eufy Security Smoke Alarm E10: Best for compatible eufy HomeBase users
- 70 mm compact design
- 5-year sealed lithium battery
- HomeBase connection
- App alerts
This is the clearest fit for remote phone notifications when you already have a compatible, updated eufy HomeBase.
Pros
- Phone alerts
- Compact 70 mm design
- Sealed 5-year battery
Cons
- Requires compatible HomeBase
- One alarm per pack
The eufy Security Smoke Alarm E10 is the best match for phone notifications, provided you already have a compatible eufy HomeBase. It supports HomeBase 2, HomeBase 3, HomeBase Mini and HomeBase Pro, with the required software versions kept current.
Its compact 70 mm design takes up less ceiling or wall space than larger alarms. The sealed lithium battery is designed for up to 5 years, and the wireless HomeBase connection reaches up to 656 ft in open air.
The required HomeBase is the main buying condition. This alarm does not operate as a stand-alone phone-alert device without the supported HomeBase connection.
That means it fits best when your home already uses eufy for security or smart home devices. In that case, the alarm can join an existing system rather than asking you to build one from scratch.
The compact shape is a practical plus for visible areas. It can sit on a ceiling or wall without drawing as much attention as a larger unit.
The sealed battery reduces the usual yearly battery change routine. You still need to keep the HomeBase updated for the alarm to work as intended.
Choose this model if remote app alerts are the priority and your eufy system is already in place. If you use Ring, read which smoke detectors work with Ring before assuming that any smart alarm will appear in the Ring app.
7. Kidde Smoke & CO Detector
Kidde Smoke & CO Detector: Best for voice hazard alerts
- 3 alarms
- Smoke and CO detection
- Voice alerts
- 2 AA alkaline batteries
Voice messages identify fire or carbon monoxide, which can help households distinguish the hazard quickly.
Pros
- Voice alerts
- Three-pack
- Smoke and CO detection
Cons
- AA batteries need replacement
- No phone alerts
The Kidde Smoke & CO Detector is the best choice for voice hazard alerts in a 3-pack. It detects smoke and carbon monoxide, then announces “Fire” for smoke or “Warning, Carbon Monoxide” when CO is present.
Each alarm uses 2 AA alkaline batteries and includes the batteries. The photoelectric and electrochemical sensors cover the two hazards, while the 85 dB alarm and red LED provide audible and visual warnings.
The batteries need regular attention. The product data says they should be replaced every 6 months or when the alarm gives a low-battery chirp, so this set requires more maintenance than sealed-battery models.
The spoken messages can help a household respond in the right way. Hearing the specific hazard is clearer than a sound alone in a stressful moment.
The 3-pack format makes it easier to cover several areas with the same model. That consistency can help with testing and with remembering replacement dates.
Voice alerts are local warnings, not phone notifications. They help people in the home, but they do not by themselves reach someone who is away.
Choose it when spoken hazard information helps your household respond quickly. It provides local warnings rather than stated phone notifications.
8. Heiman Smoke Detector
Heiman Smoke Detector: Best for compact local interconnection
- 3 alarms
- Wireless interconnection
- Dual-photoelectric sensing
- 85 dB buzzer
Three compact alarms can sound together through wireless interconnection, but they do not send direct smartphone alerts.
Pros
- Three-pack
- Compact design
- Wireless local alerts
Cons
- No direct app connection
- No Wi-Fi
The Heiman Smoke Detector suits buyers who want compact wireless interconnection without Wi-Fi. The 3-pack uses dual-photoelectric sensing, and one alarm can cause all interconnected units to sound together.
The alarms use battery power and include mounting brackets, magnetic adhesive pads, screws, anchor plugs, batteries and manuals. A test and silence button can hush nuisance alarms for 10 minutes, while the 85 dB buzzer and LED indicators provide local warnings.
The key limitation is the connection type. These alarms communicate with each other, but they do not connect directly to a smartphone app or Wi-Fi.
That means the system is built for people inside the home. When one unit detects smoke, the other units can sound to warn people in other rooms.
The compact size and adhesive option give you more placement choices. That can help in rentals or in rooms where drilling is not ideal.
The 10 minute hush can make nuisance alarms less disruptive. You still need to clear the cause of the alarm and avoid using silence as a substitute for safety.
They can coordinate local alerts, not send a remote phone notification. Choose Heiman when coordinated alarm coverage matters more than app access.
A connected eufy system is a better fit if your priority is a phone alert while away. The Heiman set is better viewed as a local interconnection option.
How do smart smoke detectors work?
Smart smoke detectors use a connected hub, Wi-Fi connection or compatible security platform to send an alert to your phone. The alarm still needs a local siren for people inside the home, because app notifications can be delayed by power, internet or phone problems.
The eufy E10 uses a compatible HomeBase for its wireless connection and app alerts. By contrast, the X-Sense SC06-W and Heiman alarms use wireless communication between alarms only.
Read how do smart smoke detectors work for a closer look at hubs, apps and local alarm behavior.
Before buying, confirm 4 points:
- Does the alarm send phone alerts directly, or does it require a hub?
- Which hub, app or platform does it support?
- Will local alarms still sound if the internet is unavailable?
- Does the system cover smoke only, or smoke and carbon monoxide?
Are hardwired smoke alarms better for phone alerts?
Hardwired alarms are better when your priority is permanent electrical power and compatibility with an existing alarm circuit. They are not automatically better for phone alerts, because hardwired power and smartphone connectivity are separate features.
The BRK First Alert 9120BFF/ SMI100-AC and FIRST ALERT BRK SC9120B Hardwired Smoke both focus on hardwired household coverage with battery backup. They can be useful in a home already wired for compatible BRK or First Alert alarms.
If an existing First Alert unit is chirping, use the troubleshooting guide for why is my First Alert smoke alarm beeping. A chirp may require attention to the battery, alarm age or installation, so don't ignore repeated warnings.
Should you buy a smoke-only or smoke and CO alarm?
Choose a smoke and CO alarm when you want one unit to cover both hazards in the same room. The X-Sense SC06-W, First Alert SC9120B and Kidde Smoke & CO Detector all combine smoke and carbon monoxide detection.
A combination alarm can be useful in halls, bedrooms, and areas near fuel burning appliances. It gives one mounted device two jobs, which can simplify placement in a busy home.
Choose a smoke-only alarm when you already have separate CO coverage or need a simpler smoke alarm for a specific room. The BRK First Alert 9120BFF/ SMI100-AC, X-Sense SD2J0AX and Kidde Smoke Detector are smoke-focused options.
Carbon monoxide is colourless and has no smell, so a dedicated sensor matters where CO risk exists. A smoke sensor alone will not cover that hazard.
A phone alert is useful, but it should not be the only warning method in a home. Local alarms still need to wake and warn people who are inside.
Think about maintenance as well as detection. Sealed batteries reduce upkeep, while replaceable batteries need a regular schedule.
Interconnection can matter more than app access in some homes, especially if people sleep on different floors.
For a home with existing hardwired alarms, compatibility should be checked early. For a rental or a room without wiring, battery models give more flexibility.
The right choice is the one that matches the room.
What should you check before installing one?
Check the alarm power type, connection method, detection coverage and placement instructions before installation. Hardwired models may need existing compatible wiring, while battery models usually offer more flexibility.
For connected models, update the compatible hub when required and test both the local alarm and the phone notification. For interconnected models, test the full group so you know whether one alarm activates the others.
Keep alarms in the recommended rooms and on each level of the home. Placement is part of safety, because an alarm in the wrong spot may react later.
Avoid treating a phone alert as proof that every room has enough local alarm coverage. A notification can arrive late, and it may not reach a sleeping person in another room.
Check the manual for the exact mounting surface and spacing guidance. Flat ceilings, angled ceilings, and walls can all change how you install a unit.
For hardwired replacements, switch off power before you start and confirm the battery backup is fitted correctly. For battery models, check that the battery is active before mounting and test the alarm after installation.
Keep the user manual handy for testing and care instructions. Also plan for cleaning and inspection over time, as dust and insects can affect performance.
Final verdict on the best smoke detector that alerts your phone
The eufy Security Smoke Alarm E10 is the best smoke detector that alerts your phone if you already use a compatible eufy HomeBase. Pick the BRK First Alert 9120BFF/ SMI100-AC for hardwired power, the X-Sense 6-pack for wireless whole-home local alerts, or the Kidde Smoke & CO Detector for spoken hazard warnings.
Choose based on the alert path you actually need. Phone notifications require a compatible connected system, while wireless interconnection only makes nearby alarms sound together.
If remote alerts are your top priority, start with the eufy model and confirm your HomeBase version. An updated and compatible hub is essential for the app notification to work.
If hardwired reliability matters more, the BRK First Alert 9120BFF/ SMI100-AC suits a home with compatible wiring. Its battery backup helps during a power outage.
If you want several rooms to sound together without rewiring, the X-Sense 6-pack gives whole-home local coverage. It also adds carbon monoxide detection in each unit.
If spoken information helps your household, the Kidde Smoke & CO Detector names the hazard aloud. That can make the response clearer for people in the home.
Do not assume that every smart sounding alarm sends phone alerts. Check the connection method, hub requirement, and sensor type before you buy, and match the alarm to your wiring, your hub, and the rooms you need to cover.
Our top 3 picks at a glance
-
1
Best for hardwired reliability
BRK First Alert 9120BFF/ SMI100-AC Smoke Detector
9.7/10 our score
See it on Amazon -
2
-
3
Best for whole-home wireless coverage
X-Sense 6-Pack Interconnected Smoke and CO Detector
9.3/10 our score
See it on Amazon
Frequently asked questions
What is the best smoke detector that alerts your phone?
The eufy Security Smoke Alarm E10 is the strongest match here because it sends app alerts through a compatible eufy HomeBase. HomeBase 2, 3, Mini and Pro are supported.
If you do not already use that system, a hardwired or interconnected alarm may provide better whole-home coverage without adding a hub.
Do First Alert smoke alarms alert your phone?
The BRK First Alert 9120BFF and FIRST ALERT BRK SC9120B listed here provide local audible alarms and can interconnect with compatible hardwired alarms. Their product data does not state direct phone notifications.
For remote alerts, choose a model with a stated app connection and check its required hub or platform.
Does wireless interconnected mean Wi-Fi?
No. Wireless interconnection means the alarms communicate with each other so multiple units can sound together.
The X-Sense SC06-W and Heiman Smoke Detector use wireless interconnection but do not connect directly to Wi-Fi or a smartphone app.
Phone alerts require a compatible connected system.
Can a smoke detector send alerts when you are away?
Yes, but only when the alarm is part of a supported connected system with app notifications. The eufy Security Smoke Alarm E10 uses a compatible HomeBase for this purpose.
A standalone alarm or a local wireless-interconnected system can alert people nearby, but it does not by itself send a phone notification.
Should you choose smoke-only or smoke and CO detection?
Choose smoke and CO detection when one alarm location needs protection from both hazards. The First Alert SC9120B, X-Sense SC06-W and Kidde 30CUDR-V combine the two types of detection.
A smoke-only alarm may still make sense in rooms where you already have separate carbon monoxide coverage.
