This category is about making sense of the technical layer that decides whether your smart home devices actually work together, Wi-Fi, Zigbee, Thread, Matter, and the hubs and ecosystems that tie them into one system. We cover how to choose between wireless protocols in real-world settings like apartments, when a hub is actually necessary versus optional, how far Matter’s promise of universal compatibility really goes today, and how to migrate an entire smart house between ecosystems like Google Home and Apple Home without starting from scratch. Each guide is built around practical decisions rather than spec-sheet comparisons, so you can choose a setup that won’t leave you locked out or rebuilding your automations a year later.