Shelly Blu Motion vs Sonoff SNZB-03P ZigBee Motion Sensor comparison

Updated July 2026

Data from Amazon and official Shelly and Sonoff sites.

2026 verdict

The Sonoff SNZB-03P ZigBee Motion Sensor is the more capable motion sensor overall against the Shelly Blu Motion, winning on price, rating, integrations and its alerts. This cheap Zigbee sensor detects near-instantly, pairs with almost any Zigbee hub (SmartThings, Hubitat, Home Assistant), adds a light sensor, low-battery alerts and history logging, and works with Alexa and Google Home. The Shelly Blu Motion keeps one clear advantage, a slightly longer 9m/30ft range versus 6m/20ft, and as a tiny Bluetooth sensor with a lux sensor and up to about five years of battery life, it is an excellent fit for a Shelly household on Home Assistant. Both need a bridge or hub and stay indoors. Choose the Sonoff SNZB-03P ZigBee Motion Sensor for a cheaper, better-connected, higher-rated Zigbee trigger; pick the Shelly Blu Motion if you already run Shelly gear and want its longer reach and long battery life.

Feature	Shelly Blu Motion	Sonoff SNZB-03P ZigBee Motion Sensor	Winner
Price	$25.99	$14.85	Sonoff SNZB-03P ZigBee Motion Sensor
Rating	4.0	4.2	Sonoff SNZB-03P ZigBee Motion Sensor
Integrations	Google Home, Alexa, Home Assistant	Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT	Sonoff SNZB-03P ZigBee Motion Sensor
Alerts	Motion Alerts	Motion Alerts, Low Battery Alerts	Sonoff SNZB-03P ZigBee Motion Sensor
Range of Detection	9m / 30ft	6m / 20ft	Shelly Blu Motion
Connectivity	Bluetooth	Zigbee	Tie
Sensors	Motion, Light	Motion, Light	Tie

Shelly

Shelly Blu Motion

$25.99

Buy on Amazon USA

+ Range of Detection: 9m / 30ft
- Price: $25.99 vs $14.85
- Rating: 4.0 vs 4.2

Winner

Sonoff

Sonoff SNZB-03P ZigBee Motion Sensor

10% OFF

$14.85

$16.50

Buy on Amazon USA

+ Price: $14.85
+ Rating: 4.2
+ Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT
- Range of Detection: 6m / 20ft vs 9m / 30ft

Frequently Asked Questions

Which is better overall: Shelly Blu Motion or Sonoff SNZB-03P ZigBee Motion Sensor?

The Sonoff SNZB-03P ZigBee Motion Sensor wins overall on price, a higher owner rating, broader integrations and added low-battery alerts and history logging. The Shelly Blu Motion counters with a slightly longer 9m/30ft range and a great fit for Shelly and Home Assistant homes.

What is the biggest difference between the Shelly Blu Motion and the Sonoff SNZB-03P ZigBee Motion Sensor?

Radio and ecosystem. The Sonoff SNZB-03P ZigBee Motion Sensor is a Zigbee sensor that pairs with many hubs and connects to Alexa and Google, while the Shelly Blu Motion is a Bluetooth sensor that needs another Shelly device or a BLU Gateway to reach WiFi and works best in a Shelly setup.

Which sensor has the longer detection range?

The Shelly Blu Motion reaches farther at 9m/30ft, versus the Sonoff SNZB-03P ZigBee Motion Sensor's 6m/20ft. The Sonoff offsets that shorter range with a lower price, a higher owner rating, low-battery alerts and history logging.

Do both sensors need supporting hardware?

Yes. The Shelly Blu Motion needs another Shelly device or a BLU Gateway to bridge Bluetooth to WiFi, and the Sonoff SNZB-03P ZigBee Motion Sensor needs a Zigbee hub such as SmartThings, Hubitat or Home Assistant. Both are indoor-only lighting sensors.

Who should buy the Shelly Blu Motion?

Buy the Shelly Blu Motion if you already run Shelly hardware, use Home Assistant, and want a tiny, fast sensor with a longer 9m/30ft range and up to five years of battery life. It is ideal for indoor Shelly-based lighting automations.

Who should buy the Sonoff SNZB-03P ZigBee Motion Sensor?

Buy the Sonoff SNZB-03P ZigBee Motion Sensor if you have a Zigbee hub and want a cheap, fast, well-rated motion sensor with a light sensor, low-battery alerts and history logging. It pairs with SmartThings, Hubitat and Home Assistant for responsive automations.

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