Kasa KS225 vs SONOFF M5: Which Matter Wall Switch Should You Buy?

Compare the TP-Link Kasa KS225 Matter dimmer and SONOFF M5 Matter wall switch by dimming needs, wiring checks, CSA certification, pack size, and current checkout links.

A Wi-Fi Matter dimmer two-pack versus an on/off Matter wall switch

We may earn a commission. How our links work

Quick verdict

Choose Kasa KS225 when you need a Matter-compatible wall dimmer and the two-pack suits the number of circuits you are upgrading. Choose SONOFF M5 when an on/off wall switch is enough; confirm wiring, gang configuration, and the exact model before checkout.

Kasa

TP-Link Kasa Smart KS225 Wi‑Fi Light Switch & Dimmer (Matter, 2‑Pack)

TP-Link Kasa Smart KS225 Wi‑Fi Light Switch & Dimmer (Matter, 2‑Pack) is a smart switch; it is CSA Matter certified on March 22, 2025 (certificate CSA25198MAT45290-24). TP-Link…

Price: No US store link yet
Protocol: Wi-Fi
HomeKit: Check exact controller support
Alexa: Check exact controller support

Certification proof: CSA25198MAT45290-24 on the CSA registry

Compare full catalog details

SONOFF

SONOFF M5 Smart Wall Switch

SONOFF M5 Smart Wall Switch is a smart switch, listed as connecting over Wi-Fi and Bluetooth; Matter support is claimed, but no CSA certificate is verified for this exact model.

Price: Price at retailer
Protocol: Wi-Fi, Bluetooth, Matter
HomeKit: Check exact controller support
Alexa: Check exact controller support

Certification proof: No exact CSA certificate recorded

Check Amazon price Compare full catalog details

Which to choose when

Choose Kasa KS225 when…

Choose the Kasa KS225 when you need a dimmer: it is a Wi-Fi light switch and dimmer sold as a two-pack. It matches CSA certificate CSA25198MAT45290-24 (March 2025), the certificate of TP-Link’s Kasa Smart Wi-Fi Dimmer Switch model. MatterCatalog has no verified store link for the KS225 right now, so it has no buy button here.

Choose SONOFF M5 when…

Choose the SONOFF M5 when an on/off wall switch is enough. Its record lists Wi-Fi and Bluetooth. MatterCatalog has no CSA certificate on file for this exact model: the certificate this record used to list belongs to SONOFF’s TX Gen2 three-gang switch, so check SONOFF’s M5 page for its Matter status. Its Amazon listing name says it requires a neutral wire, so check your wall box first.

What the catalog records show

The same answers each product page gives, from its catalog record and verified store links; a platform is named as confirmed only where the maker’s own site names it.

TP-Link Kasa Smart KS225 Wi‑Fi Light Switch & Dimmer (Matter, 2‑Pack)

Is this switch Matter certified?: Yes. MatterCatalog matches it to CSA Matter certificate CSA25198MAT45290-24, certified Mar 22, 2025.
Which platforms does its record list?: None yet. MatterCatalog has not recorded platform support for this record, so confirm your platform with the maker.
Where can I buy it?: MatterCatalog has no verified store link for this record right now.

SONOFF M5 Smart Wall Switch

Is the SONOFF M5 Smart Wall Switch Matter certified?: Not verified. Matter support is claimed for it, but MatterCatalog has not verified a CSA certificate for this exact model.
Does the SONOFF M5 Smart Wall Switch 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.
Where can I buy the SONOFF M5 Smart Wall Switch?: MatterCatalog has verified store links for it at Amazon and SONOFF. Check the current price, model and pack size at the store.
Which platforms does its record list?: None yet. MatterCatalog has not recorded platform support for this record, so confirm your platform with the maker.

Before you buy

Dimming: only the KS225 is a dimmer. The M5 switches lights on and off.
Wiring: check for a neutral wire and the gang configuration (one, two or three switches per plate) before ordering the M5; check the KS225’s wiring guide for your circuit.
Pack: the KS225 record is a two-pack. Count the circuits you are upgrading.
Electrical safety: wall switches are mains-wired. If you are not comfortable with household wiring, use a licensed electrician.

How this page was made

We have not performed hands-on testing. This page is built from MatterCatalog’s catalog records: each product’s CSA certificate and its scope, the network and platforms its record lists, the maker’s setup requirements and the stores with a verified link. It does not rank performance, reliability or price; check the current price, model and pack size at the store. Editorial policy

Keep comparing

Matter smart switches All buying guides Compare devices Affiliate disclosure