A home qualifies as a smart home when devices can be monitored or controlled automatically or remotely. This usually includes connected lighting, climate control, security, and entertainment. The key is automation and integration rather than single gadgets. For example, lights that turn on based on motion, or a thermostat that adjusts when you leave, show smart behavior.
A central app or hub often ties devices together and allows routines such as good night or away mode. Even a small setup can count if it adds remote control or automated actions that respond to your habits and needs. Most definitions also include remote visibility, so you can check status and make changes when you are away from home or work easily.