Nest Learning Thermostat 3rd Generation review: The best single smart thermostat, but it would be nice to have a few expansion options.

If reports are to be believed, Nest may be going through tough times with its parent company, Alphabet (Google). Nevertheless, its flagship product – the Nest Thermostat – remains the go-to option for those trying to make their home a little smarter.

The relatively affordable entry-level Nest Thermostat lets you control your heating and cooling system by phone or voice, set temperature schedules, and offers energy-saving features that can help lower your bill.

Google's clever thermostat keeps getting smarter

Nest made some pretty grand claims about its smart thermostat when it was first announced. The company claimed that, through a more intelligent heating system, its thermostat could reduce your energy consumption by as much as 10% and hence save you money.

The third-generation Nest Learning Thermostat has all the smarts of its predecessors and adds some new features including a larger display, geofencing support, a furnace monitor, and a few more sensors.

With plenty of competition in smart heating systems - from the likes of Hive, Tado and Honeywell - how does the Nest 3.0 Learning Thermostat stack up?

Nest created the smart thermostat market, and now it's under attack. Turns out the appeal of home temperature control without requiring programming more complex than a graduate degree, and more flexible than "on" or "off", is enough to lure in not only...

The Nest is one of the best-known smart thermostats, but is it the best? We explain everything you need to know in our in-depth UK Nest thermostat review.