Your controller may focus on one particular technology (for example Z-Wave), or it may have several different technologies built in (for example Z-Wave, Zigbee and WiFi).
Your controller may focus on one particular technology (for example Z-Wave), or it may have several different technologies built in (for example Z-Wave, Zigbee and WiFi). Choosing a controller that supports these standards as a starting point is the best course of action for most Smart Homes, but remember to also check for integration possibilities with any proprietary products or systems that you might also plan to use (such as Hive, Tado or Visonic), for example using IFTTT or a Cloud service.