Door & Window Sensors · Head to head

Shelly BLU Door/Window ZB vs SwitchBot Contact Sensor

Full Smart Door & Window Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Shelly and SwitchBot sites.
2026 verdict
SwitchBot Contact Sensor has the better all-around case than Shelly BLU Door/Window ZB in 2026, starting with price, integrations, and sensors.
SwitchBot Contact Sensor
Winner
SwitchBot Contact Sensor
$16.99

Last recorded price

Buy on Amazon USA
Its biggest wins come from price, integrations, and sensors, and alerts add more confidence to the verdict. Shelly BLU Door/Window ZB is the better fit only for buyers who prioritize rating, warranty, and battery life above everything else here. That is why SwitchBot Contact Sensor wins the verdict here.
vs
Winner
SwitchBot Contact Sensor
SwitchBot

SwitchBot Contact Sensor

Prime exclusive deal
$16.99
42% above its lowest price of the last 6 months ($11.99)
26% above its lowest price of the last 6 months (€15.29)

Last recorded price

Buy on Amazon USA

Also sold in packs

  • Pack of 3$35.99$12.00 per unitBuy
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FeatureShelly BLU Door/Window ZBSwitchBot Contact SensorWinner
Price$22.99$16.99SwitchBot Contact Sensor
Rating4.64.4Shelly BLU Door/Window ZB
Warranty2 years1 yearShelly BLU Door/Window ZB
Battery Life5 years3 yearsShelly BLU Door/Window ZB
ConnectivityBluetooth, ZigbeeBluetoothShelly BLU Door/Window ZB
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSwitchBot Contact Sensor
SensorsDoor & Window Open/Close, LightDoor & Window Open/Close, Light, MotionSwitchBot Contact Sensor
AlertsDoor & Window Open/Close Alerts, Low Battery AlertsDoor & Window Open/Close Alerts, Motion AlertsSwitchBot Contact Sensor
Weather ResistanceNONOTie
Shelly

Shelly BLU Door/Window ZB

Prime exclusive deal
$22.99

Last recorded price

Buy on Amazon USA
  • + Rating: 4.6
  • + Warranty: 2 years
  • + Battery Life: 5 years
  • - Price: $22.99 vs $16.99
  • - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
Winner
SwitchBot

SwitchBot Contact Sensor

Prime exclusive deal
$16.99

Last recorded price

Buy on Amazon USA
  • + Price: $16.99
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • + Sensors: Door & Window Open/Close, Light, Motion
  • - Rating: 4.4 vs 4.6
  • - Warranty: 1 year vs 2 years

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Shelly BLU Door/Window ZB
  • SwitchBot Contact Sensor

Loading price history...

Frequently Asked Questions

Which is better overall: Shelly BLU Door/Window ZB or SwitchBot Contact Sensor?

SwitchBot Contact Sensor has the stronger overall profile in this comparison, especially for price, integrations, and sensors.

What is the biggest difference between Shelly BLU Door/Window ZB and SwitchBot Contact Sensor?

Price is one of the clearest differences: Shelly BLU Door/Window ZB lists $22.99, while SwitchBot Contact Sensor lists $16.99.

Which one looks better on price?

Shelly BLU Door/Window ZB is listed at $22.99, while SwitchBot Contact Sensor is listed at $16.99. SwitchBot Contact Sensor (better spec).

Who should buy Shelly BLU Door/Window ZB?

Choose Shelly BLU Door/Window ZB if your priority is rating and warranty and that matters more than price.

Who should buy SwitchBot Contact Sensor?

Choose SwitchBot Contact Sensor if your priority is price and integrations and that matters more than rating.

Full comparison table

Compare all 32 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.

  • 32 Door & Window Sensors
  • 40 specs compared
  • 35 filters
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