Developed by Apple, Amazon, Google, and Samsung, Matter is an open-sourced, IP-based connectivity software layer for smart home devices. It works over Wi-Fi, ethernet, and the low-power mesh networking protocol Thread and currently supports over 20 device types. These include lighting, plugs and switches, thermostats, locks, security and environment sensors, refrigerators, dishwashers, smoke alarms, air quality monitors, and more.
All of this means that if a smart home gadget you buy has the Matter logo, you can set it up and use it with any Matter-compatible ecosystem via a Matter controller. Additionally, you can control it with multiple controllers simultaneously, a feature called multi-admin. Once connected to an ecosystem, a device can work with any others in that ecosystem, regardless of whether it’s a Matter device.
Amazon Alexa, Google Home, Samsung SmartThings, and Apple Home are some of the major platforms that support Matter, and they have all updated their compatible smart speakers, hubs, and other devices to be Matter controllers.