SONOFF S41s
The SONOFF S41s is Matter certified (certificate CSA255AEMAT46336-24, certified Aug 18, 2025). It uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller. A certified Matter device can be added to any Matter controller whose app supports its device type, such as Apple Home, Google Home, Alexa, SmartThings or Home Assistant; features vary by app. The maker hasn’t named platforms on a page we hold. Sold in the US at Amazon and The Home Depot.
Certificate data as of . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant
CSA Matter certified (certificate CSA255AEMAT46336-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Yes, Aug 18, 2025 · Connectivity: Wi-Fi · Thread border router: Not needed (uses Wi-Fi)
- Works with
- Matter certified as an on/off plug-in unit, so it can work with Matter apps such as Apple Home, Google Home, Alexa and SmartThings when the app supports its device type; supported features vary by app. The maker hasn’t named platforms on a page we hold.
- CSA certificate
- CSA255AEMAT46336-24, certified Aug 18, 2025
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
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Amazon
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2 stores
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CSA Matter Certified
Certificate: CSA255AEMAT46336-24What its Matter certificate covers
Per the CSA compliance document for certificate CSA255AEMAT46336-24 (firmware v1.0, Matter 1.4, certified Aug 18, 2025):
- Energy monitoring over Matter
- Not listed in this certification: certificate CSA255AEMAT46336-24 lists neither the Electrical Power Measurement nor the Electrical Energy Measurement cluster.
- Matter network
- Wi-Fi, with Bluetooth for setup
- Matter device type (CSA page)
- On/Off Plug-in Unit (0x010A)
- On/Off endpoints
- 3, each switched on its own (the document does not name what each one controls)
- Clusters listed
- Groups, Identify, On/Off
Matter Over WiFi Smart Plug
Specifications
- Brand
- Sonoff
- Category
- Plugs
- Protocols
- Wi-Fi
- Certificate ID
- CSA255AEMAT46336-24
- Certificate holder
- Shenzhen Sonoff Technologies Co., Ltd.
- Certified
- Aug 18, 2025
- Firmware
- v1.0
Ecosystem compatibility
Quick answers
- Is the SONOFF S41s Matter certified?
- Yes. MatterCatalog matches it to CSA Matter certificate CSA255AEMAT46336-24, certified Aug 18, 2025.
- Does the SONOFF S41S work with Apple Home or HomeKit?
- Likely. It is Matter certified (certificate CSA255AEMAT46336-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Apple Home on a page we hold. Apple says an iPhone using iOS 18 or later can add Matter accessories to the Home app without a home hub. Apple’s Matter page lists outlets among the accessory types the Home app supports.
- Does the SONOFF S41S work with Google Home?
- Likely. It is Matter certified (certificate CSA255AEMAT46336-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Google Home on a page we hold. Google says you need a Matter-enabled hub device set up on your home wireless network before you can add Matter devices to Google Home. Google’s supported-device-types page lists the On/Off Plug-in Unit type.
- Does the SONOFF S41S work with Alexa?
- Likely. It is Matter certified (certificate CSA255AEMAT46336-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Alexa on a page we hold. Alexa needs a Matter-compatible Echo; Amazon says its Echo devices support “a subset of Matter 1.5 and lower device types”, so check that yours does.
- Does the SONOFF S41S work with Samsung SmartThings?
- Likely. It is Matter certified (certificate CSA255AEMAT46336-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named SmartThings on a page we hold. SmartThings adds Matter devices through the SmartThings app and a Matter controller.
- Does the SONOFF S41S work with Home Assistant?
- Likely. It is Matter certified (certificate CSA255AEMAT46336-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Home Assistant on a page we hold. Home Assistant says: “Adding a new Matter device only works in the Home Assistant Companion app.”
- Does the SONOFF S41s use Thread or Wi-Fi?
- Wi-Fi. Its catalog record lists Wi-Fi, so it joins your Wi-Fi network and does not need a Thread border router. You still need your platform’s Matter controller.
- Does the SONOFF S41S need a hub or a Thread border router?
- No hub of its own and no Thread border router: it joins your Wi-Fi network. You still need your platform’s Matter controller (a smart speaker, display, streaming box or hub), though Apple says an iPhone using iOS 18 or later can add Matter accessories without a home hub.
- When was the SONOFF S41S Matter certified?
- The CSA certified it on Aug 18, 2025 (certificate CSA255AEMAT46336-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
- Where can I buy the SONOFF S41s?
- MatterCatalog has verified store links for it at Amazon and The Home Depot. Check the current price, model and pack size at the store.
From this product’s catalog record, not hands-on testing. Editorial policy
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SONOFF S41s
CSA certified