Hive Active Heatin 2

£249 with installation / hivehome.com

Hive is simple enough for anyone to use and powerful enough to be truly useful, with features such as geolocation and holiday mode that really save you money. For a family-friendly introduction to the smart home world, it’s a solid choice.

Stuff says ★★★★★

As a first smart thermostat, the Hive is hot, hot, hot