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Is it Matter? How to check a device is Matter-certified, and what the Works with badges mean

The Connectivity Standards Alliance (CSA) says only Matter-certified devices carry the Matter logo, and a certified product becomes eligible for a listing you can look up on the CSA's site; certified Matter products also get a record in its Distributed Compliance Ledger. The Works with badges from Apple, Google, Amazon, SmartThings and Home Assistant are each company's own programs on top of that, and Google's is issued whatever the connection type, so it doesn't by itself mean Matter. Certification also doesn't settle platform support: in MatterCheck's checks, 16 of 24 Matter device types pair on all five platforms, so check the device type too.

Matter logo, Works with badges and "Ready for Matter": what each one means

Each badge below comes from a different issuer and answers a different question.

The table is built from each issuer's own pages. The Matter logo and the CSA listing are the two things that tie directly to certification. Terms like Matter-compatible, Matter-enabled and Matter-ready aren't defined as certification terms on any page we checked — Google's help page calls the logo the "Matter compatibility logo", but the CSA itself ties the logo to certification, not to those looser phrases.

What the Matter logo tells you

The CSA's Matter FAQ says only Matter-certified devices will carry the Matter logo, and it tells shoppers to look for that badge on new smart home controllers and devices. Its certification page spells out what sits behind the logo: certification allows the use of Certified Product logos and a listing on the Alliance website for verification, requires testing at a CSA Authorized Test Provider, remains valid for the lifetime of the product, and requires the network transport — Wi-Fi, Thread or Ethernet — to be certified by its own standards organization first. Matter products also get a Certification Declaration and a record in the Distributed Compliance Ledger (DCL).

In practice, Google's help page says to look for the Matter compatibility logo on the device packaging or website, and to check the connectivity protocol logos that show whether the device uses Wi-Fi or Thread. Home Assistant's Matter documentation warns that Thread devices don't necessarily support Matter — some use Apple HomeKit or a vendor protocol, and a few need a beta firmware update — so don't assume Matter from a Thread logo alone. Look for the Matter logo itself, or the maker's own confirmation that the device supports Matter.

How to look a device up on the CSA's certified product list

1. Open the CSA's Certified Products Search, which the CSA says lists thousands of certified products.
2. Filter Program Type to Matter, or search the brand name or Certification ID.
3. Open the listing and match the product name and company to the exact model you're holding.
4. Read the fields below the name — they tell you the transport, the Matter version and the primary device type.

The fields matter because platforms support device types, not brands. The three listings above, fetched 2026-10-19, show how different real products look: IKEA's KLIPPBOK leak sensor is Matter 1.3 over Thread and Bluetooth with primary type 0x0043, and IKEA's MYGGBETT contact sensor is Matter 1.4 with primary type 0x0015. TP-Link's Kasa KS205 light switch is Matter 1.0 over Wi-Fi and Bluetooth with primary type 0x0100 — an On/Off Light. That last one matters: a load-carrying wall switch like the KS205 certifies as an On/Off Light, which is why MatterCheck files it under lights rather than switches.

Watch for Zigbee certificates on the same site. The CSA also certifies Zigbee products, and IKEA's KLIPPBOK listing page shows IKEA's Zigbee 3.0 and Zigbee Light Link products under "More by IKEA" with certificate IDs starting ZIG — for example ZIG23178ZB331646-24. The Matter IDs on the listings we checked start with CSA and contain MAT, like CSA262BOMAT52420-24. Check that the Program Type says Matter.

Behind the listing sits the Distributed Compliance Ledger. The CSA says it's a cryptographically secure, distributed network where makers, test houses and certification centres publish device information, and that it's public to read with a WebUI. Amazon's Works with Alexa rules say makers must register their Product ID and Vendor ID in the DCL and include clear pairing instructions there, which Alexa can retrieve and show during setup.

The Works with badges, platform by platform

Each platform runs its own program on top of CSA certification, with its own rules.

Apple Home

Apple's accessories page says to look for the Works with Apple Home logo when you shop, and notes its list of compatible devices may not be exhaustive. Apple's developer page says Matter accessories that are distributed or sold must go through CSA certification, and that Works with Apple Home badge guidelines exist for Matter-certified accessories. Apple Support's Matter accessories page (published 2026-05-07) lists the Matter accessory types the Home app supports: air conditioners, bridges, lights, locks, outlets, switches, thermostats, blinds and shades, and sensors (motion, ambient light, contact, temperature, and humidity). See MatterCheck's Apple Home support guide for the full picture.

Google Home

Google's certification overview says the Works with Google Home badge is issued to devices that passed Google's certification regardless of connection type — Matter, Cloud-to-cloud or Local Home SDK — and that Google-certified Matter devices can use it alongside the CSA's Matter badge. Matter partners must be both CSA- and Google Matter-certified. The same overview says that starting in 2026, all Matter integration and testing will require the Alliance Interop Test, and Google's Interop Test Lab page (last updated 2025-08-05) says ITL test results will become the only option to obtain the WWGH badge. Google's supported device types table (updated 2026-10-08) says device types not listed there aren't officially supported in Google Home. See MatterCheck's Google Home support guide.

Alexa

Amazon's Works with Alexa rules for Matter require CSA certification, a Product ID and Vendor ID registered in the DCL, and Matter 1.5 or lower — and they apply to native devices and to devices bridged through a Matter bridge. Amazon's Matter developer docs say Matter-compatible Echo devices support a subset of Matter 1.5 and lower device types. See MatterCheck's Alexa support guide.

SmartThings

SmartThings' WWST overview says certified products are listed in the SmartThings app and can use the WWST logo, and its benefits table marks "Controlled by Automations" for both certified and non-certified devices. Its CSA ITL page says Matter devices tested at the CSA's Interoperability Lab are automatically tested for WWST at no cost to the maker. A non-certified device can still connect, according to the developer overview. See MatterCheck's SmartThings support guide.

Home Assistant

The Works with Home Assistant program certifies end devices only — not hubs, bridges, repeaters or Zigbee / Z-Wave adapters — and its requirements list includes Matter CSA Certification. It prioritises local control, with cloud control opt-in only. Home Assistant's Matter docs say that adding a test board or beta device can show an "Uncertified Accessory" prompt in the iOS flow. See MatterCheck's Home Assistant support guide.

Certified isn't the same as supported on every platform

Google's help page says all Matter-certified smart home platforms and apps update to support different Matter-enabled device types at different times, and Amazon's developer docs say Echo supports a subset of device types. In MatterCheck's checks, 16 of 24 Matter device types pair on all five platforms — and these 8 don't.

Read the table as Yes / Partial / No with MatterCheck's confidence level. Partial means only some devices or features of that type are added on that platform; under MatterCheck's methodology, a platform's list leaving a type out supports No at Med confidence at most. There's a real tension in Google's own pages: its help page says all Matter-enabled end devices work with Google Home, while its developer table says unlisted types aren't officially supported. So look up the device type, not just the logo — start with MatterCheck's platform matrix or Check a device.

Some Matter device types have no consumer product yet. MatterCheck's 2026-10-16 recheck scanned 5,434 models on the DCL and found none with pump, speaker or water heater as their primary type, and its product research found no certified consumer product of those types.

Matter claims we checked that didn't hold up

MatterCheck's product research has set aside 53 products for reasons like the ones below.

The lessons from that table are practical. Check the exact model and generation, not the brand — Google Nest's 2020 thermostat is Matter, but the Nest Thermostat E and Learning Thermostat 3rd gen or earlier aren't listed as Matter in Google's software history or the CSA's thermostat data. A store listing's Matter claim isn't a certificate: UseeLink's AW713 water valve claims Matter on Amazon retail pages, but MatterCheck found no CSA Matter certificate ID. A CSA page can be a Zigbee certificate, as with SONOFF's water valves. A certified device can keep a feature in the maker's own cluster that platforms may not show — Eve Weather's pressure reading sits in a proprietary Eve cluster, not the standard Pressure Measurement cluster. And a device that only reaches Matter through the maker's hub is a bridged device, like Tapo's T-series sensors. MatterCheck's products page lists every product it set aside and why.

"Ready for Matter", firmware updates and bridges

The CSA's Matter FAQ says many existing smart home products will be upgradable to Matter via software updates, and to watch for communications from the maker. Eve's Eve Aqua page (fetched 2026-10-19) still says "Ready for Matter" with a future software update. No page we checked says how long such updates take. Until the update ships and the product is certified, treat it as not Matter. See MatterCheck's firmware update guide.

Bridged devices are a separate case. Amazon's Works with Alexa rules, linked above, cover devices exposed through a Matter bridge, and Google's developer docs say devices behind a Matter bridge appear as normal in Google Home. Apple's support list includes bridges. Home Assistant's docs say Home Assistant isn't a bridge and can't turn existing devices into Matter devices. MatterCheck's research lists Tapo's T-series sensors as bridged through the Tapo hub. See MatterCheck's bridge guide.

Wi-Fi or Thread: check the transport too

The CSA listing's Transport Interface field shows Wi-Fi or Thread. Bluetooth on a listing is for setup, not control: Home Assistant's Matter docs say Bluetooth is used to pair a device after unboxing or factory reset, not to control it, and the CSA's FAQ says Matter uses Bluetooth Low Energy to simplify setup. A Thread device also needs a Thread border router: Amazon's developer docs, for example, say a Thread Border Router must commission Thread-based devices before they connect. MatterCheck's 106 tracked products break down as 57 Thread, 2 Thread + Bluetooth and 47 Wi-Fi. See MatterCheck's Thread vs Wi-Fi guide and hub and border router guide.

A quick check before you buy

• Look for the Matter logo on the box or the maker's site — not just a Thread logo or a "smart home" claim.
• Find the exact model on the CSA's Certified Products Search with Program Type set to Matter.
• Note the primary device type, then check MatterCheck's matrix for your platform.
• Check the transport — Wi-Fi or Thread — and whether you have a Thread border router if it's Thread.
• Treat "Ready for Matter" as a promise: until the update ships and the model is on the CSA's list, it isn't Matter yet.
• A Matter claim that only works through the maker's hub means a bridged device, not a native Matter end device.

If a certified device won't pair, start with MatterCheck's device not pairing guide.

Frequently asked questions

What does Matter certified mean?

It means the product passed testing at a CSA Authorized Test Provider and the CSA approved its certification, which the CSA says denotes compliance to a specification. The certification remains valid for the lifetime of the product, which becomes eligible for a listing on the CSA's Certified Products Search, and Matter products also get a record in the Distributed Compliance Ledger. The maker can then use the Matter logo.

How do I know if my device is Matter enabled?

Look for the Matter logo on the packaging or the maker's website, then confirm the exact model on the CSA's Certified Products Search with Program Type set to Matter. Check the listing's Transport Interface and Primary Device Type ID so you know what you're actually getting.

Is Matter-compatible the same as Matter-certified?

No page we checked defines "Matter-compatible" as a certification term. The CSA ties the Matter logo and the certified product listing to certification. A store or maker saying "compatible" isn't the same as a CSA certificate — MatterCheck's research found retail Matter claims with no CSA cert ID.

Where can I find a list of Matter certified devices?

The CSA's Certified Products Search is the official list, and the CSA says it contains thousands of certified products. Filter by Program Type Matter, or search a brand or Certification ID. MatterCheck also tracks 106 Matter products across device types.

Can my existing device be updated to Matter?

The CSA says many existing products will be upgradable to Matter via software updates, and to watch for the maker's communications. No page we checked says how long that takes. Until the update ships and the product appears on the CSA list, treat it as not Matter.

What does an Uncertified Accessory warning mean?

Home Assistant's docs say you might see an "Uncertified Accessory" prompt when adding a test board or beta device in the iOS flow, and to select Add Anyway. The docs mention it for test boards and beta devices; if a retail device you bought as Matter shows it, look the model up on the CSA's Certified Products Search.

Does the Works with Google Home badge mean a device uses Matter?

No. Google's certification overview says the Works with Google Home badge is issued to devices that passed Google's certification regardless of connection type — Matter, Cloud-to-cloud or Local Home SDK. A Google-certified Matter device can use the WWGH badge alongside the CSA's Matter badge, but the WWGH badge alone doesn't tell you the connection type.

More MatterCheck guides

• Platform comparison — how the five platforms differ on Matter support.
• Device not pairing — what to try when a certified device won't join.
• Firmware updates — how Matter devices get firmware updates on each platform.
• Bridges and Zigbee devices — what bridged Matter means in practice.
• Thread vs Wi-Fi — which transport a device uses and why it matters.
• Matter versions — what recent Matter versions added and which version each platform supports.
• Matter vs Zigbee vs Z-Wave — how the standards compare.
• Hubs and Thread border routers — what your network needs.
• Multi-admin and sharing — pairing one device to several platforms.
• How to add a Matter device — how to pair a Matter device on Apple Home, Google Home, Alexa, SmartThings and Home Assistant.
• Lost your Matter setup code? — where to find a lost Matter code, or how to make a new one.
• Matter vs HomeKit: what's different in Apple Home — how HomeKit and Matter differ in Apple Home, and what makers say about switching.
• What is Matter? The smart home standard explained — what the standard is, how it connects, and what each platform needs.
• Matter speakers: what works with Matter — what the Speaker type controls and which platforms support it.

How we checked

Pages fetched 2026-10-19: the CSA's Matter FAQ, Certified Products Search, certification process and DCL pages, and three certified product listings; Apple's accessories, developer and support (102135) pages; Google's certification overview, Interop Test Lab page, help page and supported-devices table; Amazon's Matter and Works with Alexa developer pages; SmartThings' WWST developer pages; the Works with Home Assistant page and Home Assistant's Matter docs; and Eve's Eve Aqua page. Platform support comes from MatterCheck's own checks; product findings come from MatterCheck's product research. See MatterCheck's methodology.

Last reviewed 2026-10-19. Certification lists and badge rules change; if something here looks out of date, check the CSA listing or the platform's page linked above.