Smart home automation and connection of your home appliances enable you to have better control than ever before. All things usually use WiFi connection, but wireless protocols such as ZigBee and Z-Wave can also be used. Another new option is Bluetooth 5, which is said to be a potential technology for connecting smart home technology.
With a device connected to the Internet, you can set:
Remote control for adjusting thermostat from any position
Home automation based on schedule, movement, temperature, etc
Voice control using Alexa, Google Home, Siri, etc