Controller, hub or bridge?
These words get mixed up in shops, so let us separate them. A controller is the brain you talk to: Apple Home, Google Home, Amazon Alexa, Samsung SmartThings or the open-source Home Assistant. A hub is a box that hosts that brain and often adds radios; in a starter setup, your speaker or display usually fills this role. A bridge translates an older or private protocol into something your controller understands, such as the Philips Hue Bridge turning Zigbee bulbs into Matter devices, or IKEA's Dirigera hub doing the same for IKEA products.
Matter: the shared language
Matter is an application standard from the Connectivity Standards Alliance, the group formerly known as the Zigbee Alliance, backed by Apple, Google, Amazon and Samsung among hundreds of companies. Version 1.0 arrived in October 2022, with later releases adding device types such as robot vacuums and energy reporting. Matter devices work on your local network, so lights still respond when your internet drops, and they support "multi-admin": the same bulb can appear in Apple Home and Alexa at once.
For a first setup, the practical rule is simple: when two otherwise equal products differ only in Matter support, buy the Matter one. Keep the pairing code (a QR code plus an 11-digit number) somewhere safe.
Thread: the quiet mesh
Thread is a low-power wireless mesh network that many Matter devices use instead of Wi-Fi. Every mains-powered Thread device can relay messages, so the network gets stronger as you add plugs and bulbs. It needs a Thread border router to reach the rest of your network; the HomePod mini, Apple TV 4K (Wi-Fi + Ethernet), Google Nest Hub (2nd Gen), Nest Hub Max and Echo (4th Gen) all include one.
Zigbee and Z-Wave: the veterans
Zigbee has powered smart bulbs and sensors for well over a decade, including Philips Hue and many IKEA products. It is reliable and power-efficient but needs a Zigbee hub or a speaker with a Zigbee radio, such as the Echo (4th Gen). Z-Wave uses sub-gigahertz frequencies (around 868 MHz in Europe and 908 MHz in North America), which travel well through walls; it is common in security and lock products and usually needs a dedicated hub like SmartThings or a Home Assistant setup.
Wi-Fi and Bluetooth
Wi-Fi devices connect straight to your router, which is convenient for plugs, thermostats and doorbells that need bandwidth for video. The catch is crowding: dozens of Wi-Fi gadgets can strain a basic router. Bluetooth is mostly used during setup; Matter devices often use Bluetooth Low Energy to receive your Wi-Fi or Thread credentials, then switch over.
Compatibility at a glance
| Protocol | Range style | Needs | Good for |
|---|---|---|---|
| Matter over Wi-Fi | Router range | Matter controller | Plugs, some bulbs, thermostats |
| Matter over Thread | Self-healing mesh | Thread border router | Bulbs, plugs, sensors |
| Zigbee | Mesh | Zigbee hub or bridge | Bulbs, sensors, remotes |
| Z-Wave | Mesh, sub-GHz | Z-Wave hub | Locks, security sensors |
| Wi-Fi only | Router range | Brand app | Video doorbells, cameras |
Choosing your platform
Pick the controller that matches the phones in your household. Apple Home is tidy and privacy-focused but needs an Apple home hub for automations. Google Home suits Android users and Nest hardware. Alexa has the widest device catalogue. SmartThings works across Android and iOS. Home Assistant is free and runs locally, ideal later if you enjoy tinkering. Thanks to Matter, choosing one today does not lock your bulbs in forever.