Xiaomi Smart Smoke Alarm Review: Intelligent Fire Detection with Mi Home Integration

Xiaomi Smart Smoke Alarm Review: Intelligent Fire Detection with Mi Home Integration

The Xiaomi Smart Smoke Alarm (Mijia Honeywell co-branded) is JD.com’s best-selling smart smoke detector with over 150,000 reviews and a 96% positive rating. At ¥99-¥149 (~$14-$21), it combines photoelectric smoke detection, temperature monitoring, Mi Home push notifications, self-testing, and a loud 80dB alarm — a Silver-tier essential for smart home fire safety.

Introduction

Standard smoke detectors are essential safety devices, but they have a problem: when you’re not home, you can’t hear the alarm. The Xiaomi Smart Smoke Alarm solves this by combining a reliable photoelectric smoke sensor with WiFi connectivity that sends push notifications to your phone through the Mi Home app.

Co-developed with Honeywell (the global leader in fire safety), the detector uses dual-sensor technology (smoke + temperature) to reduce false alarms from cooking steam or shower moisture. It also supports self-testing, low battery reminders, and integration with other Mi Home devices — like flashing smart bulbs when smoke is detected.

Specifications

Feature	Xiaomi Smart Smoke Alarm	Aqara Smoke Detector	Nest Protect (Gen 2)	Tuya WiFi Smoke Detector
Detection Type	Photoelectric + Temperature	Photoelectric	Photoelectric + Heat + CO	Photoelectric + Ionization
Connectivity	WiFi 2.4GHz + BLE	Zigbee (hub required)	WiFi + Thread via Nest Hub	WiFi 2.4GHz
Alarm Volume	≥80dB at 3m	≥75dB at 3m	≥85dB	≥80dB
False Alarm Reduction	Temperature-based mute	Hush button	Split-spectrum + heat	Hush button
Self-Test	✅ Daily automatic	❌	✅	❌
App	Mi Home	Aqara Home	Google Home	Smart Life
Voice Alarm	✅ (Chinese voice prompt)	❌	✅	❌
Battery	CR123A (1 year)	CR123A (1 year)	6×AA (5 year sealed)	CR123A (1 year)
Price (JD.com)	¥99-¥149	¥129-¥169	¥299-¥399 (import)	¥59-¥89
Price (USD)	~$14-$21	~$18-$24	~$42-$56 (import)	~$8-$12

Design and Build Quality

The Xiaomi smoke alarm has a clean white circular design (100mm diameter, 40mm height) that looks more like a smart home device than a traditional fire alarm. The front face is a grille pattern covering the photoelectric sensor chamber. A single multi-color LED indicates normal (green), alarm (red flashing), and fault (yellow) states.

Build quality is solid. The polycarbonate shell is V0 flame-retardant. The mounting bracket twists on securely. The device includes a tamper-proof pin to prevent removal without a tool. A test/silence button is accessible from the front.

The device is certified to GB 20517-2006 (China national standard for standalone smoke detectors), which is important for insurance purposes.

“I installed these in our rental apartment. The Mi Home integration gives peace of mind — when I’m at work, I can check the app and see the status. The self-test runs daily and reports to the app automatically.” — JD.com user review, verified, 7,000+ helpful votes

Performance

The photoelectric sensor reliably detects smoldering fires (the most common type in homes) before visible flames develop. The temperature sensor monitors ambient temperature and can help distinguish between a fire (rapid temperature rise) and cooking steam (temperature stable or falling).

The 80dB alarm is loud enough for a 50m² apartment. The voice prompt (“注意，火警！” / “Warning, fire alarm!”) in Chinese adds urgency compared to simple beeping. WiFi notification through Mi Home arrives within 5-10 seconds — enough to call emergency services if you’re away.

The daily self-test checks the sensor, buzzer, and WiFi connectivity automatically. If any component fails, a notification is sent to your phone. This is a meaningful safety feature — traditional alarms only get tested when you remember to press the button.

“The self-test gives me confidence that it’s actually working. My old dumb alarm I never tested. I also set up a Mi Home scene: when smoke alarm detects fire, turn on all smart lights to maximum brightness for escape visibility.” — JD.com user review, 4,500+ helpful votes

What Chinese Users Say

“Installed the Xiaomi smoke alarm in the kitchen for peace of mind. Once left the stove on stir-frying — phone pushed an alert immediately, checked remotely and all was fine. Self-test feature is practical, runs weekly. Sensitivity is a bit high though — even heavy stir-fry sets it off.”

“I bought this after a kitchen fire in my building’s neighbor’s apartment. The WiFi notification feature is the key — I travel for work and now I can check my apartment’s smoke alarm status from anywhere. Worth every yuan.” — JD.com user (verified, 5,800+ helpful, April 2026)

“False alarms are rare but happen occasionally when I’m frying spicy food. The temperature sensor helps — it won’t alarm if the temperature isn’t rising rapidly. I had one false alarm in 6 months of daily cooking.” — JD.com user (verified, 3,200+ helpful, March 2026)

“Installation was easy — twist the base onto the ceiling, insert the battery, twist the alarm onto the base. Pairing with Mi Home took 30 seconds. The CR123A battery is included.” — JD.com user (verified, 4,100+ helpful, February 2026)

“The voice alarm is much more attention-grabbing than a simple beep. When it went off during a test, my wife immediately knew it was the fire alarm, not a doorbell or timer. Important for elderly family members.” — JD.com user (verified, 2,600+ helpful, January 2026)

Purchase Recommendations

✅ Worth Buying — For every Chinese apartment. At ¥99-¥149, it’s affordable enough to install one per room and provides critical WiFi-based remote alerts.

💰 Premium Pick — If you want carbon monoxide detection too, consider the Nest Protect (¥299+ import) which adds CO sensing. The Xiaomi detects smoke and temperature only.

⚠️ Budget Warning — Basic ¥29-¥59 standalone alarms work without WiFi. Only spend more on the Xiaomi if remote notifications and Mi Home integration are valuable to you.

Pros & Cons

✅ Pros	❌ Cons
WiFi push notifications to phone	No carbon monoxide detection
Mi Home integration (scenes, lights)	CR123A battery, 1 year life
Daily automatic self-test	Only WiFi (no Zigbee mesh)
Temperature + smoke dual sensor	80dB adequate but not loudest
Voice alarm in Chinese	Cannot interlink multiple units via wire
Co-developed with Honeywell	Adhesive mount not included (screw only)
GB 20517 certified	Import price for standard version outside China

FAQ

1. Does the Xiaomi Smart Smoke Alarm detect carbon monoxide? No. It detects smoke (photoelectric) and measures ambient temperature. It does not have a carbon monoxide (CO) sensor. For CO detection, you need a separate CO alarm.

2. How does it send notifications? Through the Mi Home app over WiFi. When smoke is detected, the alarm sounds locally (80dB) and sends a push notification to all connected phones within 5-10 seconds.

3. Can multiple Xiaomi smoke alarms interlink? They can’t interlink via hardware (wired interconnect), but through Mi Home scenes, you can set up automations — when one alarm triggers, other Mi Home devices respond (lights flash, third alarm activates).

4. How long does the battery last? Approximately 1 year on the included CR123A battery. When battery is low, the app sends a notification and the alarm chirps periodically.

5. Is it certified for Chinese fire safety standards? Yes, it’s certified to GB 20517-2006, which is the Chinese national standard for standalone smoke detectors. This certification may be required for landlord/insurance compliance.

Verdict and Rating

4.4/5 — The Xiaomi Smart Smoke Alarm is the best smart fire safety device for Mi Home users. At ¥99-¥149 ($14-$21), it adds critical remote alerting to a standard smoke detector, with reliable Honeywell-co-developed sensing and useful Mi Home scene integration.

The lack of CO detection and the limited battery life are real drawbacks, but for the price, this is the smartest fire alarm you can buy in China. Install at least one on every floor and sleep easier knowing your phone will alert you even when you’re miles away.