What Is Matter? The Smart Home Standard Explained (2025)

Matter is an open-source smart home connectivity standard developed by the Connectivity Standards Alliance (CSA), with founding support from Apple, Google, Amazon, Samsung SmartThings, and dozens of other manufacturers. Released in late 2022 and significantly expanded in 2023 and 2024, Matter aims to solve one of the biggest frustrations in smart home tech: incompatibility between ecosystems.

Before Matter, if you wanted to use a Philips Hue bulb with both Apple HomeKit and Google Home, you needed both apps, potentially multiple hubs, and a lot of patience. Matter changes this by creating a single application layer that all certified devices share, meaning a Matter-certified bulb works with HomeKit, Alexa, Google Home, and SmartThings out of the box — with a single setup.

Matter runs on your local IP network using IPv6 and operates over Wi-Fi, Ethernet, and Thread (a low-power mesh networking protocol). Thread is particularly important for battery-powered devices like sensors and locks because it extends range and eliminates single points of failure — each Thread device acts as a router for other Thread devices.

Matter uses a distributed trust model: when you add a device to your HomeKit home, you're issuing it a certificate. Other ecosystems (like Google Home) can then request access to that device through a process called Multi-Admin, which means one physical device can be controlled simultaneously by multiple platforms without extra hardware. This is a major breakthrough compared to previous standards.

The setup process uses Bluetooth Low Energy (BLE) for initial commissioning — scanning a QR code or NFC tag — before the device is handed off to your Wi-Fi or Thread network for ongoing communication.

Matter is not a wireless radio protocol — it's an application layer standard that runs on top of existing radios. Thread is the low-power mesh radio that Matter uses for battery devices. Wi-Fi Matter devices are simpler to deploy but use more power. Zigbee and Z-Wave are older, proprietary protocols that require dedicated hubs and are not natively Matter-compatible.

Many Zigbee-based devices (like older Philips Hue bulbs) are getting software bridges that expose them as Matter devices, but this requires a compatible hub running updated firmware. If you're buying new devices, prioritizing native Matter support gives you the most flexibility.

As of 2025, hundreds of devices carry the Matter certification badge. Product categories include smart bulbs and light strips, smart plugs and switches, door locks, thermostats, blinds and shades, robot vacuums, door and window sensors, and smart TVs. Apple HomePod mini (2nd gen), HomePod (2nd gen), Apple TV 4K, and all modern Amazon Echo devices act as Thread Border Routers, bridging Thread devices to your Wi-Fi network.

Notable certified devices include the Yale Assure Lock 2, Nanoleaf Lines, Eve Energy plug, Aqara smart locks, and a growing number of Govee, Sengled, and IKEA products. Philips Hue released Matter support for its Bridge V2, allowing older Hue bulbs to appear as Matter accessories.

For Wi-Fi Matter devices, no hub is required — the device connects directly to your router and is discovered by your smart home app. For Thread-based Matter devices, you need at least one Thread Border Router on your network. Apple TV 4K (3rd gen), HomePod mini, HomePod (2nd gen), Amazon Echo (4th gen), and Google Nest Hub (2nd gen) all include Thread Border Routers.

If you already own any of these devices, you likely have Thread coverage without realizing it. If not, a dedicated Thread Border Router is inexpensive — the Apple HomePod mini is frequently on sale and doubles as a HomeKit hub.

Matter 1.3 and beyond are expanding support to energy management, EV chargers, and major appliances. The standard is also adding camera support, which has been one of the most requested missing features. As more manufacturers adopt Matter, the ecosystem fragmentation that has plagued smart home users for years should diminish significantly.

If you're building or upgrading a smart home today, prioritizing Matter-certified devices is the most future-proof strategy. You won't be locked into any single ecosystem, and your devices will continue to work as you add or change platforms.