Top smart thermostats compared

About Top smart thermostats compared

Smart thermostats differ most in what you have to buy before the first one works, not in the thermostat itself. This ranking covers 24 brands that sell thermostats, and it sorts them on the trade-off that decides the real outlay: price at entry, the hardware a brand needs alongside it, and what lands on the bill afterwards. A hub is the pivot, because it sets both the first purchase and whether schedules keep running when the internet does not. Entry prices here run €4.06 to €482.33, the median sits at €15.36 and the median product price is €46.96. Renewal cost is lighter than in most connected categories: Lutron, Lennox and the other Aqara entry carry a monthly subscription of free, and contract terms in this ranking are 0 months at the longest. Region matters just as much, from GB-only shops to a range reaching much of Europe, the UAE, Brazil, Taiwan and the US, so each brand below is read against where you actually live.

How we picked

Every brand here is scored on the same three weights: cost at 40%, the offer at 40% and trust at 20%. Cost covers the entry price of a thermostat plus anything a buyer has to add before it works, such as a hub. The offer covers the wider catalogue, protocols, ecosystems, energy reporting and the monthly subscription, because a cheap valve that needs a hub is not a cheap system. Trust covers warranty length, support channels, the legal entity behind the name and how long security support is offered. Facts come from each brand's own site, shop pages and policy documents, and the category figures come from our own records across 24 brands in this ranking and 376 overall. Partners that serve your country are listed first in this ranking, then the rest by score. Where a brand does not publish a figure, nothing is assumed for or against it.

Our top picks

1. 2. Aqara: best for top-pick

   Aqara takes the top-pick label in this ranking because it covers the whole heating brief from a low entry point, with prices starting at £3.49 and hubs, thermostats, radiator valves, lighting and blinds in one catalogue. A hub is required, and it is also the bridge to Alexa, Google, HomeKit, Matter and SmartThings, with Matter, Thread, Zigbee and Wi-Fi on the protocol list. Energy reporting is included, support runs on phone, help centre and community, the warranty runs 2 years and security support runs 2 years. Delivery is listed for GB. Lutron, ranked next, also has local control and a required hub, but it is built for the US, Canada, Puerto Rico and the Virgin Islands.

   • Price from: £3.49
   • Matter certified: Yes
   • Hub required: Yes

   Pros

   • Monitoring is £0 and the contract term is 0 months, so there is no renewal price to plan for.
   • Hardware opens at £3.49 and cameras start at £36.98, against a site entry median of €127.49.
   • Local control and local storage are both supported, so automations and recordings can stay on the hub rather than in the cloud.
   • One hub covers hub, sensor and lighting over matter, thread and zigbee, which spreads the hub cost across many device types.
   • A 14 day money back period and a 2 years warranty cover both ends of a first purchase.

   Cons

   • A hub is required before any sensor, lock or blind does anything, which is an upfront cost on top of the devices.
   • Professional monitoring is not offered, so alerts depend on the household rather than on a watching service.
   • Support runs on phone, help centre and community only, with no live chat listed alongside them.
   • Cloud history is short at 7 days, so longer retention depends on the local recording in 7-day free cloud clips plus local microSD recording.

2. 3. Lutron

   Lutron sits just below the top of this ranking on control quality rather than catalogue breadth. Its device list covers thermostats, blinds, lighting, plugs, sensors and hubs, local control works once a hub is in place, and the monthly subscription is free. Support runs on email, phone and help centre, which is more generous than most members here. The trade-off is reach: Lutron sells into the US, Canada, Puerto Rico and the Virgin Islands, and its ecosystems are limited to alexa, google and homekit. SONOFF, the brand ranked below it, ships across much of Europe from €6.16 and is Matter certified.

   • Hub required: Yes
   • Local control: Yes
   • Subscription per month: $0

   Pros

   • The monthly subscription is $0, so entry cost and renewal cost are the same figure.
   • Local control is on, so the hub runs schedules and scenes rather than leaning on a remote service.
   • The range covers lighting, blinds and thermostat behind a single hub, so lighting and climate share the same app.
   • It works with alexa, google and homekit, so most homes can keep the voice assistant and hub they already have.
   • Support runs on email, phone and help centre, so help is available by more than a single channel.

   Cons

   • Availability is limited to US, CA and PR, so buyers outside the listed markets will not find the range.
   • A hub is required, so the bridge cost sits on top of every device added later.
   • SONOFF covers thermostat, trv and lighting, which includes radiator valves that Lutron's lighting, blinds and thermostat does not list.
   • alexa, google and homekit covers voice assistants and SmartThings, but Matter is not part of that list, so the Lutron hub stays central to the system.

3. 4. SONOFF

   SONOFF ranks high in this ranking because it pairs a low entry price with the broadest European market list in the field. Products start at €6.16 and cover thermostats, radiator valves, lighting, plugs, blinds, sensors and hubs, all Matter certified, speaking Matter, Thread, Zigbee and Wi-Fi, and reachable from Alexa, Google, HomeKit, Matter and SmartThings. A hub is required, though local control works once it is set up, and energy reporting is included. Support runs on email and help centre with a 2 year warranty. GHome Smart, ranked next, needs no hub but sells into a single market and stays inside the Alexa and Google ecosystems.

   • Price from: €6.16
   • Matter certified: Yes
   • Hub required: Yes

   Pros

   • Matter certified gear across thermostat, trv and lighting, covering matter, thread and zigbee so it fits most existing setups
   • Entry prices from €6.16 and cameras from €20.47
   • Free features include local AI detection, security modes, privacy zones and RTSP with no monthly fee
   • Local control is supported, so routines run without the cloud
   • Ships to AT, BE and BG with 2 years of warranty

   Cons

   • Professional monitoring is not offered, so alarms stay self-served
   • A hub is required for the Zigbee thermostat, adding cost to a heating setup
   • Support runs on email and help centre only, with no phone or live chat line
   • Camera ranges stop at 4k maximum resolution

4. 5. GHome Smart

   GHome Smart sits in the middle of this ranking as the plainest route to connected heating. A hub is not required, so thermostats and radiator valves work on their own over wi fi and zigbee, and the catalogue also covers plugs, lighting and sensors. Products start at $9.99, energy reporting is built in, and support runs on email, help centre and community, while the warranty is 1 year. Delivery is listed for the US. Samsung, ranked just below it, also runs without a hub and covers more protocols, but it is listed for GB and works inside SmartThings and Matter.

   • Price from: $9.99
   • Hub required: No
   • Energy reporting: Yes

   Pros

   • No hub is needed and installation is not required, so devices work once plugged in.
   • Cameras start at $23.99 and the wider range at $9.99, under the site entry median of €127.49.
   • Local storage is supported, and First month cloud storage and SD card recording keeps recording going early on.
   • Support runs on email, help centre and community, and the 30 day return window softens a first order.
   • Energy reporting sits alongside thermostats and radiator valves listed in plug, lighting and thermostat.

   Cons

   • Professional monitoring is not offered, so nothing watches the house when an alarm sounds.
   • Devices run on wi fi and zigbee only, so there is no Matter route into a mixed-brand home.
   • Support runs on email, help centre and community, with no phone line listed.
   • Warranty runs 1 year, thin for outdoor cameras left in the weather.

5. 6. Lennox

   Lennox is in this ranking because it is built around whole heating systems rather than single rooms. Thermostats and sensors are the only device types listed, but heat pump compatibility is supported, local control is standard and a hub is not required, with wi fi and matter on the protocol list. Its monthly subscription is free, the warranty runs 10 years, the longest in this ranking, and it reaches the US and Canada through alexa, google and matter. It is not Matter certified, which matters if you plan to mix brands later. Moes, ranked next, adds HomeKit and radiator valves but needs a hub.

   • Matter certified: No
   • Hub required: No
   • Local control: Yes

   Pros

   • No hub is required and local control is supported, so schedules and set points stay on the thermostat itself.
   • The subscription is $0 a month, so there is no renewal to budget for after the purchase.
   • Heat pump compatibility and energy reporting are both listed, covering the two checks most households make on a thermostat.
   • 10 years of warranty from a company trading since 1895 is a long commitment to stand behind the hardware.

   Cons

   • Matter certified is listed as no, so wi fi and matter pairs a protocol with a standard the thermostat is not certified to.
   • Support runs on email, chat and help centre only, and phone is not among the listed channels.
   • The range is sold in US and CA only, so buyers in other markets need a different supplier.
   • The catalogue covers thermostat and sensor, well short of hub, sensor and lighting and thermostat, trv and lighting.

6. M7. Moes

   Moes is in this ranking as a budget route to per-room heating control. Thermostats and radiator valves sit alongside lighting, plugs, blinds, sensors and hubs, starting at €14.95, with alexa, google and homekit as the ecosystems and matter, thread and zigbee as the protocols. A hub is required, energy reporting is included, security support runs 2 years, and support runs on email, chat and help centre with a 2 year warranty. The market list sweeps across much of Europe plus the UAE, Brazil, Russia, Taiwan and the US, and AE, AT and BE does not include GB. Smart & Secure Centre, ranked next, sells in GB, is not Matter certified and skips radiator valves.

   • Price from: €14.95
   • Hub required: Yes
   • Energy reporting: Yes

   Pros

   • Entry devices come in at €14.95, under the site median of €96.46 for starting prices.
   • Recurring cost is €0 a month on a 0 months contract, so there is nothing to renew later.
   • Heating, lighting, plugs, sensors, blinds, cameras, doorbells, locks and alarms are all sold by one brand, listed under alarm, camera and smart lock.
   • Protocols reach matter, thread and zigbee, and the ecosystem list under alexa, google and homekit covers Alexa, Google, HomeKit and Matter.

   Cons

   • A hub is required, so the entry price of €14.95 does not cover a working starter system and the hub sits among the listed thermostat, trv and lighting.
   • Support runs on email, chat and help centre only, with no phone line among the listed routes to help.
   • Professional monitoring is not offered, so alarm, camera and lock owners handle their own alerts rather than relying on a watching service.
   • Camera video tops out at 2k, which is modest beside the higher resolution models many sellers carry.

7. 8. Smart & Secure Centre

   Smart & Secure Centre sits in this ranking on local British support rather than depth in heating. Thermostats, hubs, sensors, plugs and lighting are listed, and matter, thread and zigbee covers the main radios across the major voice ecosystems, but the range is not Matter certified. It is run from GB and sells into GB and IM, with support running on email and phone. The other Aqara entry, ranked next, is Matter certified, reaches far more countries, and pairs thermostats with radiator valves at an entry point of $17.99.

   • Price: £15
   • Products: Alarm, Camera, Smart-lock, and 1 more
   • Money-back period: 14 days

   Pros

   • Entry price of £15 sits under Aqara at £36.98 and Annke at $19.99.
   • The catalogue covers alarm, camera and smart lock alongside lighting, plug and hub, so security kit and smart home kit can be ordered together.
   • Power options run battery, wired and poe, so a battery setup and a wired install can both be covered in the same order.
   • Support runs on email and phone, and the returns window is 14 days.
   • Ecosystem coverage names alexa, google and homekit, so kit can join setups a household already runs.

   Cons

   • Matter certified is no, so anyone building a home around that standard should choose a certified brand instead.
   • Resolution caps at 2k, which is short of the detail some buyers expect from a camera only specialist.
   • The model is diy, so alarm panels and cameras arrive for the buyer to fit and no installer is included.
   • Delivery is listed only for GB and IM, so shoppers outside those markets should check coverage before ordering.

8. 9. Aqara

   The other Aqara entry sits near the bottom of this ranking, and its standout is the widest country list here, running from the EU and GB across much of Asia to the US, Canada and Latin America. It is Matter certified, the monthly subscription is free, and a hub is required before local control and automations work. Prices start at $17.99, a higher entry point than the Aqara entry ranked above it, the warranty runs 1 year, support runs on help centre and community and security support runs 2 years. INKBIRD Tech. C.L., ranked next, needs no hub but speaks only Wi-Fi.

   • Monitoring per month: $0
   • Minimum contract: 0 months
   • Products: Camera, Video-doorbell, Smart-lock, and 1 more

   Pros

   • Nothing recurs: monitoring is $0 and the cloud plan is $0, so the kit costs what it costs on the shelf.
   • Footage can stay at home, since local storage is supported, with the cloud holding event clips for 7 days as a backstop.
   • The range spans camera, video doorbell and smart lock, which reaches further than Annke's camera and video doorbell for anyone building out a whole home.
   • Setup is self service: installation is not required and the model is diy, so no trade visit sits between the box and the wall.

   Cons

   • Professional monitoring is not offered, so alerts land on the household rather than a response desk.
   • Support runs on help centre and community only, with no staffed channel listed for a hub that will not pair.
   • A hub is required, so the entry outlay is more than the sticker price of the cheapest device in the range.
   • Ordering is limited to AE, IL and TR, so buyers in other countries should read the activation policy before they order.

9. IT10. INKBIRD Tech. C.L.

   INKBIRD Tech. C.L. closes this ranking with the narrowest and simplest setup: thermostats, sensors and a hub, with no hub needed, no monthly charge and wi fi as the only radio. It works with Alexa, support runs on email, help centre and community, and the warranty runs 1 to 2 years. Delivery is listed for the US, China, Canada and GB, and products start at $15.99. The trade-off in this ranking is reach, since alexa is the only ecosystem and wi fi the only radio to build on.

   • Price from: $15.99
   • Hub required: No
   • Subscription per month: $0

   Pros

   • No monthly fee: the app adds $0, so nothing is due at renewal
   • No hub required, and wi fi keeps setup to a single device on your own network
   • Entry hardware starts at $15.99, well under the median entry price across the site
   • Voice control is listed for alexa, so spoken temperature checks need no screen
   • Cover runs 1 to 2 years and delivery is published for US, CN and CA

   Cons

   • Support runs on email, help centre and community only, so no phone or live chat route is listed
   • The range is limited to thermostat, sensor and hub, well short of the lighting, blinds and plug lines at Aqara and SONOFF
   • Voice support covers alexa only, narrower than the multi-platform setups rivals carry
   • Cover lasts 1 to 2 years, the shortest guarantee among the brands here

What to look for

Entry price, not the badge number

Median entry price in this ranking sits at €15.36, with the middle of the spread running €12.09 to €81.30. A valve price is a system price only after the hub is added.

Hub or no hub

A hub decides both the first bill and offline behaviour. 60% of the products we track in this category need one, so the cheapest valve on the shelf is rarely the cheapest setup.

Radios and Matter

Wi-Fi is the common denominator at 85%, and Matter certified gear covers 70% of the products here, which decides how far a range travels with other brands.

Local control

Schedules that run on the home network keep working when the internet does not. Local control is marked for 100% of the products in this category, so it is worth checking before you commit to a brand.

Heat pumps and energy reporting

Heat pump compatibility is stated for 83.3% of the products we hold here, and energy reporting is present on 100%, which is what turns a thermostat into a running-cost tool.

Region, install and who answers

Most of these systems are self-install, with 90% of the products in this category needing none. A help centre is the most common support route at 95.8%, while market lists decide where delivery happens.

Frequently asked questions

Top smart thermostats compared by country

• Australia
• Canada
• France
• Germany
• Ireland
• Italy
• Netherlands
• Spain
• United Kingdom
• United States

The data behind this ranking

All data and the CSV