Danfoss Eco is a smart radiator thermostat with Bluetooth function controlled by an app. It is targeted to first-time users of smart home products. Therefore, the design of the thermostat and the app aims to create trust by being easy to “read” and understand. Despite its advanced technology and features, the thermostat looks familiar and straightforward, while its basic operation – turning the knob left and right to adjust the temperature – is self-explanatory. The app comes with a preprogrammed heating schedule that can easily be adjusted to suit individual needs and routines.