HomeKit demands a HomePod or Apple TV 4K to act as a Home Hub. If a hub has to connect directly to your Wi-Fi router via Ethernet, you may also end up having to buy an Ethernet switch to expand ports. For Matter support you’ll need at least one device that doubles as a Matter ...
used to be the case. Many smart home hubs nowadays, such as Homey and Hubitat, are also gateways. That is, they can connect and communicate through several different popular wireless protocols — which means you likely will not need to purchase a gateway if you already have a smart hub...