to add Matter-over-Thread support to Echo devices this

now has over 100 million Matter-enabled Echo devices

Matter vs. Thread: Choosing the Right Smart Home Technology Standard

Matter is officially released! The first batch of eWeLink supported Matter products will be unveiled soon - eWeLink

Matter-compatible smart home devices

adds Thread to the Echo smart speaker and brings Matter to its iOS app - The Verge

Which echo devices support Zigbee and Matter? - Connected Things - SmartThings Community

CES 2023: LG Signature OLED M3 TV with 'Zero Connect Technology' unveiled

Smart Home: Which devices support Matter?

Echo Studio review: Better than ever, but is that enough?