Updated August 2026
Data from Amazon and official Heiman and Sonoff sites.
2026 verdict
In this 2026 Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor vs Heiman Window Door Alarm comparison, Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor comes out ahead thanks to price, integrations, and alerts.
Its clearest strengths are price, integrations, and alerts, and it still looks stronger on its broader overall balance. There is still a case for Heiman Window Door Alarm, but mainly if rating is what you value most. For most setups, Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor is the smarter buy.
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| Feature | Heiman Window Door Alarm | Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor | Winner |
|---|---|---|---|
| Price | $19.98 | $17.99 | Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor |
| Rating | 4.0 | 3.8 | Heiman Window Door Alarm |
| Integrations | Google Home, Alexa | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor |
| Alerts | Door & Window Open/Close Alerts | Door & Window Open/Close Alerts, Low Battery Alerts | Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor |
| Weather Resistance | NO | NO | Tie |
| Connectivity | 2.4 GHz WiFi | Zigbee | Tie |
| Sensors | Door & Window Open/Close | Door & Window Open/Close | Tie |
$19.98
- + Rating: 4.0
- - Price: $19.98 vs $17.99
- - Integrations: Google Home, Alexa vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
Winner
$17.99
- + Price: $17.99
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- + Alerts: Door & Window Open/Close Alerts, Low Battery Alerts
- - Rating: 3.8 vs 4.0
Frequently Asked Questions
Which is better overall: Heiman Window Door Alarm or Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor?
Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor has the stronger overall profile in this comparison, especially for price, integrations, and alerts.
What is the biggest difference between Heiman Window Door Alarm and Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor?
Price is one of the clearest differences: Heiman Window Door Alarm lists $19.98, while Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor lists $17.99.
Which one looks better on price?
Heiman Window Door Alarm is listed at $19.98, while Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor is listed at $17.99. Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor (better spec).
Who should buy Heiman Window Door Alarm?
Choose Heiman Window Door Alarm if your priority is rating and that matters more than price.
Who should buy Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor?
Choose Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor if your priority is price and integrations and that matters more than rating.
Full comparison table
Compare all 27 Door & Window Sensors side by side
You are looking at two of them. The full table lines up all Door & Window Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 27 Door & Window Sensors
- 40 specs compared
- 35 filters
RingWindow and Door Contact Sensor (2nd gen)
25% OFF$19.99$14.99
EufyEntry Sensor
$29.99
PhilipsHue Secure Contact Sensor
$39.99
YoLinkLoRa Smart Outdoor Contact Sensor
$24.99
YoLinkSolar Outdoor Door Sensor
$31.99
AeotecMultipurpose Sensor
$38.99
AqaraDoor and Window Sensor
10% OFF$17.99$16.19
RingOutdoor Contact Sensor
$49.99
SonoffSenseGuard DW Gen2
SwitchBotContact Sensor
$16.99
EcobeeSmartSensor for Doors & Windows
10% OFF$59.99$53.99
EveDoor & Window
28% OFF$43.95$31.80
CentraliteMicro Door Sensor
$37.78
ArloAll-in-One Sensor
7% OFF$29.99$27.90- Heiman
Window Door Alarm
$19.98 
SonoffSNZB-04P ZigBee Door/Window Sensor
$18.99
SonoffDW2-WIFI
$12.23
AeotecRecessed Door Sensor 7
8% OFF$39.99$36.99
SonoffSNZB-04 ZigBee Wireless Door/Window Sensor
$17.99
AeotecDoor Window Sensor 7
$34.99
- Door & Window SensorsHeiman
Window Door Alarm
4.0(148)$19.98 
Gas DetectorsHeimanHS1CG Series Combustible Gas Sensor
Gas DetectorsHeimanWS2CG Series Combustible Gas Detector
Motion SensorsHeimanSmart Motion Sensor
3.2(32)$23.99
Motion SensorsHeimanWiFi Smart Motion Sensor
2.8(43)$12.98
SirensHeimanSmart Siren HS2WD series
$79.99
Smoke & CO DetectorsHeimanHS1SA Series Smoke Alarm
4.5(5,145)5% OFF£16.99£16.14
Smoke & CO DetectorsHeimanMatter Smoke Detector S1-M
3.6(68)$39.99
Smoke & CO DetectorsHeimanSmart CO Alarm
3.6(19)20% OFF$59.99$47.99
Vibration SensorsHeimanSmart Vibration Sensor HS1VS series
$14.90
Water Leak SensorsHeimanSmart Water Leakage Sensor
4.2(40)20% OFF$19.99$15.99
Air Quality MonitorsSonoffSAWF-07P Air Quality Monitor
3.7(178)$39.90
Air Quality MonitorsSonoffSAWF-08P Air Quality Monitor
4.2(162)$49.90
CamerasSonoffCAM GlassView
$34.90
CamerasSonoffCam Slim Gen2
4.4(158)5% OFF$19.90$18.91
CamerasSonoffGK-200MP2-B
4.0(149)30% OFF$9.99$6.99
DisplaysSonoffNSPanel Pro Gen2
3.6(10)€149.90
DisplaysSonoffNSPanel Pro
4.0(70)$129.90
DonglesSonoffDongle Lite MG21
4.6(401)25% OFF$24.90$18.68
DonglesSonoffDongle Max
4.2(544)
DonglesSonoffDongle Plus MG24
4.7(630)$35.90
DonglesSonoffDongle Plus PP10
4.7(70)$35.90
DonglesSonoffDongle-PZG23
4.6(167)10% OFF$39.90$35.91
DonglesSonoffZBDongle-E
4.6(3,697)$24.90
DonglesSonoffZBDongle-P
4.6(5,627)15% OFF$39.99$34.07- Door & Window SensorsSonoff
DW2-WIFI
3.8(1,059)$12.23 - Door & Window SensorsSonoff
SNZB-04 ZigBee Wireless Door/Window Sensor
3.8(102)$17.99 - Door & Window SensorsSonoff
SNZB-04P ZigBee Door/Window Sensor
3.9(12)$18.99 - Door & Window SensorsSonoff
SenseGuard DW Gen2
4.4(171) 
Energy MonitorsSonoffMINI PM Matter Over WiFi Power Meter (Non-Switch)
$15.90
Energy MonitorsSonoffMINI PM Zigbee Power Meter (Non-Switch)
4.1(82)$15.90