sensor

SwitchBot Contact Sensor

SwitchBot

budget local: goodLocal control for everyday use; a few features may still touch the cloud. Bluetooth Matter
Price
$16.99 verified Nov 7, 2026
HA fit
good
Offline
yes
Setup
easy
Hub needed
no

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SwitchBot Contact Sensor for doors and windows

Quick verdict

A solid budget contact sensor that punches above its weight with built-in motion detection. Bluetooth works locally with Home Assistant, and you can upgrade to Matter later by adding a Hub. It is not the smallest sensor out there, but the price is right. If you are already invested in SwitchBot, it is an easy add. If starting fresh, compare against Aqara's Zigbee options.

Standout: Budget contact sensor with bonus motion detection and a path to Matter via Hub.

Notes last checked Mar 22, 2026.

Compatibility snapshot

Home Assistant goodReliable local integration with minor caveats (a hub, manual config, or polling). Core function works locally.
Apple Home okayWorks, but with limits or extra setup.
Google Home okayWorks, but with limits or extra setup.
Alexa goodWell supported, with only minor gaps.
Works offline yes
Setup easy
Extra hub needed no
Power battery

Local control facts

  • Home Assistant: switchbot integration, Local Push, Gold on the quality scale (home-assistant.io, checked Oct 10, 2026)

Why it stands out

  • budget-friendly contact sensor with Matter support via Hub
  • includes motion detection in addition to open/close, which is unusual at this price
  • Bluetooth works locally without cloud for basic Home Assistant integration

Reasons to hesitate

  • Bluetooth range is limited and may not reach your Home Assistant server without a Hub
  • Matter support requires purchasing a SwitchBot Hub separately
  • not as compact as some Zigbee or Thread contact sensors

Best for

  • SwitchBot ecosystem users who want affordable door and window sensors
  • budget-conscious buyers who plan to add a Hub later for Matter

Avoid if

  • you want the cheapest possible contact sensor, since Zigbee options like Aqara are competitive
  • you need long range without a hub, since Zigbee mesh or Thread would serve better

Privacy and local-control notes

Bluetooth communication is local. Matter via Hub adds Wi-Fi. Only reports open/close state, so minimal data footprint.

Home Assistant support: supported · integration path: SwitchBot / Matter.

Buying reality check

Price notes: One of the more affordable contact sensors, but factor in Hub cost if you want Matter or reliable remote access.

Verified price reads: lowest seen $13.59, latest $16.99 on Nov 7, 2026.

  • Nov 7, 2026$16.99amazon
  • Oct 31, 2026$16.99amazon
  • Oct 24, 2026$16.99amazon
  • Oct 17, 2026$16.99amazon
  • Oct 10, 2026$16.99amazon
  • Oct 8, 2026$13.59amazon
  • Oct 7, 2026$13.59amazon
  • Oct 6, 2026$13.59amazon

Compare side by side: see sensor comparisons →

Verified against

The compatibility notes above have not been through the source audit yet. The manufacturer's page is here; the notes were last checked Mar 22, 2026.

Spotted something wrong? Report an error on this page and I will check it against the source and fix it.

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