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BoldrThermostats

Boldr Klima Smart Thermostat, Graphite Grey

CSA Certified

This thermostat is Matter certified (certificate CSA256A0MAT46578-24, certified Aug 29, 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.

Certificate data: CSA ledger read . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant

CSA Matter certified (certificate CSA256A0MAT46578-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.

At a glance: Matter certified: Yes, Aug 29, 2025 · Connectivity: Wi-Fi · Thread border router: Not needed (uses Wi-Fi)

Works with
Matter certified as a thermostat, 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
CSA256A0MAT46578-24, certified Aug 29, 2025
Network & hub
Wi-Fi; needs no Thread border router, only your platform’s Matter controller

Updated : the last change to this page’s certification, platform or store facts.

Independent guide. We may earn a commission through affiliate links. Direct non-affiliate links are labeled. How our links work

Boldr Klima Smart Thermostat, Graphite Grey Matter device
Price at retailer

Amazon

Where to buy

1 store

StorePriceDetailsStore link

Amazon

See price at Amazon

Check the model, region and pack size at the retailer. Prices and availability are confirmed there.

Matter 1.4 certificate

Its certificate, CSA256A0MAT46578-24, is for Matter 1.4, certified Aug 29, 2025. The Matter version is the specification version on the certificate's ledger record.

Source: CSA Distributed Compliance Ledger, read Nov 10, 2026.

What Matter 1.4 added, and which devices use it →

Boldr Klima Smart Thermostat is a smart controller from Boldr for mini-split, window and portable air conditioners. It connects over Wi-Fi. It is CSA Matter certified (certificate CSA256A0MAT46578-24).

Wi-Fi

Specifications

Brand
Boldr
Category
Thermostats
Protocols
Wi-Fi
Certificate ID
CSA256A0MAT46578-24
Certificate holder
Baldr Group LTD
Certified
Aug 29, 2025
Firmware
vn9

Ecosystem compatibility

Matter

Quick answers

Is this thermostat Matter certified?
Yes. MatterCatalog matches it to CSA Matter certificate CSA256A0MAT46578-24, certified Aug 29, 2025.
Does this thermostat work with Apple Home or HomeKit?
Likely. It is Matter certified (certificate CSA256A0MAT46578-24), 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 thermostats among the accessory types the Home app supports.

Add a Matter device to Apple Home

Does this thermostat work with Google Home?
Likely. It is Matter certified (certificate CSA256A0MAT46578-24), 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 Thermostat type.

Add a Matter device to Google Home

Does this thermostat work with Alexa?
Likely. It is Matter certified (certificate CSA256A0MAT46578-24), 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.

Add a Matter device to Alexa

Does this thermostat work with Samsung SmartThings?
Likely. It is Matter certified (certificate CSA256A0MAT46578-24), 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.

Add a Matter device to SmartThings

Does this thermostat work with Home Assistant?
Likely. It is Matter certified (certificate CSA256A0MAT46578-24), 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.”

Add a Matter device to Home Assistant

Does this thermostat 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 this thermostat 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 this thermostat Matter certified?
The CSA certified it on Aug 29, 2025 (certificate CSA256A0MAT46578-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
Where can I buy this thermostat?
MatterCatalog has verified store links for it at Amazon. 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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Same CSA certificate, other catalog pages

These pages list a record with the same CSA certificate, CSA256A0MAT46578-24. Check the pack size and finish on each page.

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Boldr Klima Smart Thermostat

CSA certified

Check price at Amazon