Digital thermostats are a type of thermostat that use technology to control the temperature in a home or building. Compared to mechanical thermostats that have analog components, digital thermostats provide precise temperature control and usually include advanced features. For example, they might have a digital display, programmable settings, a touchscreen interface, smart features like Alexa or Apple HomeKit and more. These thermostats work by sensing the temperature in your home and adjusting the heating based on your preferences via your central heating control system.