Nest vs Hive smart thermostats

Hive and Nest are the two smart thermostat brands most UK householders have heard of, and the comparison usually comes down to control rather than hardware. Both connect your heating to your wifi so you can turn it on, off, up or down from a phone, tablet or desktop, wherever you are¹. Both also work with the big voice assistants: Hive's thermostat works with Alexa, Google Assistant, Apple HomeKit and Siri Shortcuts², while Nest thermostats connect to Amazon Alexa, Siri and Google Home³.

The real differences sit in the ecosystem around the thermostat. Hive has been selling smart thermostats in the UK since 2013 and calls the smart thermostat its best-selling product⁴. It also runs a subscription, Hive+, at £3.99 a month or £39.90 a year, which adds saving features, an extended warranty and discounts². Nest's strengths are its learning behaviour and its ties into the Google Home system⁵. Neither brand publishes a full current UK price in the material here, so treat installed prices as installer-quoted.

Nest vs Hive at a glance

What each does well follows from what each is attached to. Hive's strength is breadth: one app covers heating plus security, lighting, sensors, plugs and connectivity if you buy into the wider range⁶, and the thermostat can be linked to other devices, such as a motion sensor that turns the heating and lights off when a room is empty⁴. Nest's strength is the Google ecosystem and the learning approach both brands share in different degrees: these thermostats interpret what you input, such as your preferred room temperature, learn from what you do, and react to other data like weather forecasts, with some models predicting behaviour from how you set and adjust the heating and how you occupy the home⁵.

How smart thermostats manage your heating

A smart thermostat replaces the basic room thermostat and programmer with a device that connects to your wifi, so you can control your heating and hot water through your smart phone, tablet or desktop¹. That means the heating can be adjusted from work, from bed, or from holiday, and schedules can be changed without learning button sequences on a wall unit.

Beyond remote control, the intelligence is in what the device does with information. Smart heating thermostats interpret what you input, learn from your behaviour, and react to external data such as weather forecasts; some have a learning function that predicts how you use your home from how you set and adjust the heating⁵. Hive's thermostats add a geolocation function that sends an alert if you leave home with the heating on⁴, which addresses one of the commonest wastes in UK homes: heating an empty house.

Two practical points temper the promise. First, Hive recommends professional installation of its smart thermostats⁷, so budget for fitting as well as the device. Second, independent guidance is blunt about the limits: smart thermostats can be expensive and carry an installation cost, and having one means you are only tracking your heating, so you cannot keep an eye on your electricity and gas usage from it alone¹. A smart thermostat controls the boiler; it does not measure the fuel.

Hive or Nest: the cheaper option

On published figures, Hive is the only one of the two with a current price in the material here: the Hive Thermostat is listed at £101.15 for Hive+ members², with the subscription itself at £3.99 a month or £39.90 a year². Nest's current UK pricing is not published in the material here, so a like-for-like price comparison cannot be made from it; installed prices for both brands are installer-quoted, and Hive additionally recommends professional installation⁷.

What you get for the Hive+ money is a set of features aimed at cutting bills further: Saver Mode, Schedule Assist, Budget Tracker, Heating History, Away Mode, Quick Actions, remote diagnostics, an extended warranty, technical support and discounts with Hive and British Gas². Hive claims Saver Mode can cut cold weather bills by up to an extra £18 a month², and its own published figures show the top 30% of monthly savings across every customer and all months since October 2020 were £17.99 or more². Those are maker's claims, not independent measurements.

Independent evidence on what heating controls save is more cautious. Industry estimates of fuel bill savings from smart control upgrades are based on a study by the Behavioural Insights Team⁸, so the savings are modelled from trials rather than guaranteed. And the largest saving available to most households may not come from the thermostat at all: independent analysis in January 2026 found around 30 fixed and tracker energy deals that could save money compared with a variable deal⁹. A thermostat trims how much heat you use; the tariff sets what each unit costs.

Controlling your heating by voice, app and wifi

Both brands cover the main voice platforms, with Hive's list the longer of the two. The Hive Thermostat works with Alexa, Google Assistant, Apple HomeKit and Siri Shortcuts², and Hive is also compatible with other smart devices across the home, including Amazon Alexa, Google Assistant and Philips Hue⁶. Nest thermostats connect to Amazon Alexa, Siri and Google Home³. If your household is built around Apple Home, Hive's HomeKit support is the distinguishing feature; if it is built around Google speakers, both work.

The wifi connection is what makes both devices "smart" in the first place: smart thermostats such as Hive and Nest connect to your wifi so you can control heating and hot water from a phone, tablet or desktop¹. Hive's app also extends beyond heating into security, lighting, sensors, plugs and connectivity, all controlled through one app⁶, and the thermostat can be linked to devices such as a motion sensor to turn heating and lights off automatically⁴. The dependence cuts both ways: if the broadband or the maker's cloud service is down, remote control is lost, and the wall unit becomes the fallback.

Hive+ extras and warranty for £3.99 a month

Hive+ is the ongoing cost that separates the two brands' ownership models. It costs £3.99 a month, or £39.90 a year, and Hive reports over 120,000 people subscribed². Membership includes Schedules, Quick Actions, Heating History, Away Mode, Saver Mode, Budget Tracker, Schedule Assist, remote diagnostics, an extended warranty, technical support, Hive discounts, British Gas discounts and free delivery². The British Gas discounts are subject to fair use and standard British Gas terms, are for UK customers and new Hive+ customers only, and cannot be used on pre-existing orders or with any other offer².

The headline saving claim is up to an extra £18 a month off cold weather bills with Hive+², supported by Hive's own Budget Tracker data showing the top 30% of monthly savings at £17.99 or more across every customer and all months since October 2020². As maker's figures drawn from its own customer base, they describe the best-performing customers rather than a typical result.

There is also a route to Hive+ at no initial cost: selecting pro-install gets a whole year of Hive+ free, with auto-renewal after 12 months and cancellation at any time². Hive has additionally run a winter promotion from 14 September to 5 October 2026, offering free or discounted Hive+ membership and 15% member discounts on qualifying thermostats and accessories. Nest has no equivalent subscription covered in the material here, so its cost of ownership is the device and installation alone.

The limits of Nest and Hive in bigger multi zone homes

The clearest limitation applies to Hive's subscription features rather than the hardware: Saver Mode and Schedule Assist are not currently compatible with multiple heating zones or with Hive Radiator Valves². That matters because those two features are the main bill-saving selling points of Hive+. In a home with separate upstairs and downstairs zones, or with smart radiator valves fitted, the features that justify the £3.99 a month do not apply.

The thermostat itself is more capable than the subscription that goes with it. You can add more thermostats to control up to 6 zones of heating if you have an existing multizone heating system². So a larger home can be zoned with Hive, but it needs the right existing wiring or additional installation work, and it forfeits Saver Mode and Schedule Assist².

The independent guidance on smart thermostats as a category adds a broader caution: they can be expensive, they carry an installation cost, and having one means you are only tracking your heating, not your electricity and gas usage¹. For homes with complex layouts, underfloor heating or system boilers with hot water cylinders, the zoning design matters more than the brand badge, and it is worth reading about heating zones and smart TRVs before choosing.

Will it work with the boiler you already have

Hive states that its Active Heating is compatible with most boilers, but it is not compatible with all of them². The excluded models matter for anyone with an older Worcester Bosch installation, because several are on the list. The incompatible models are:

• Worcester Bosch ICC2, ZWBR 11-37A
• Worcester Bosch C RD 537i and C RD 542i
• Worcester Bosch Greenstar HE Plus, ZWBR 7-28A and ZWBR 11-35A
• Worcester Bosch C Greenstar 30 HE Plus Combi and 35 HE Plus L Combi
• Worcester Bosch C Greenstar R 30HE Plus, 35HE Plus and 40HE Plus²

The practical step before buying either brand is to note the boiler's exact make and model, from the data badge or the manual, and check it against the thermostat maker's compatibility information. Hive recommends professional installation of its smart thermostats⁷, and an installer will confirm compatibility as part of that visit. For a fuller walkthrough of how smart thermostats connect to different systems, see smart thermostat boiler compatibility.

Compatibility is also a live question for the future of the heating system, not just its present. Where a new heat pump is installed alongside an existing gas boiler under the Warm Homes Social Housing Fund, the boiler must have an ErP rating of A or above and the retrofit coordinator must be satisfied it is in good working order, and installations comprising both a heat pump and a fossil fuel boiler are ineligible for the Boiler Upgrade Scheme¹⁰. A smart thermostat fitted today should be expected to control whatever replaces the boiler later, which is one reason to check how each brand handles heat pumps.

Smart thermostats and your energy independence

A smart thermostat gives a household more control over when heat is used, and that is a genuine gain for energy independence: schedules, geolocation alerts and away modes mean the boiler runs when the home needs it rather than to a clock on the wall⁴. Used with a time-of-use tariff, that control becomes more valuable still. An Energy Systems Catapult case study of an optimised household on a dual rate tariff found their daily electricity bill reduced by 25 to 30% on a winter day compared with a non-optimised household¹⁰.

The dependence that remains is real and worth stating plainly. Both devices rely on the maker's app and cloud service for their smart features, so remote control, schedules and learning depend on Hive's or Google's servers staying up and the products staying supported. Hive's own product history shows what support ending looks like: the Hive View Camera and Hive HomeShield both stopped functioning when their three-year support periods ended on 1 August 2025². A thermostat bought today is a bet on the company behind it continuing to run the service.

There are also limits to what a thermostat can see. Independent guidance notes that having one means you are only tracking your heating, so you cannot keep an eye on your electricity and gas usage¹, and the savings from smart controls are modelled from behavioural studies rather than guaranteed⁸. The thermostat is a control layer over a system that still depends on a fuel supply, a supplier and a tariff. For a fuller treatment of the trade-off between local control and cloud dependence, see heating controls and energy independence, and for the data and security side, smart heating control security and data.