Smart Thermostat GURU

Choose the best smart thermostat
TOPsSee our product TOPs

Smart Thermostat GURU helps you choose with confidence

We are here to make smart thermostat shopping simple. No hype, just clear guidance so you can find what fits your home and your daily routine.

Our mission is to help you stay comfortable while making smarter energy choices. We review features that matter, compare real differences, and keep the advice easy to use.

Whether you rent or own, live in a studio or a busy family home, we help you pick the best smart thermostat for your lifestyle.

What you will get from our guides

  • Simple comparisons that highlight comfort, savings, and ease of use
  • Buying checklists so you avoid surprise compatibility issues
  • Honest recommendations focused on everyday reliability
  • Comfort tips to help your home feel right in every season
  • Quick paths to explore Buying Guides and Energy and Comfort Tips
Start with our Buying Guides
🏆 Comparison

Our selection of the 25 best smart thermostats compatible with Alexa (September 2026)

25
Products tested
8.3/10
Best rating
See comparison
🏆 Best choice
RTH9600WF Smart Color Thermostat ENERGY STAR Wi-Fi Programmable Touchscreen Alexa Ready - C-Wire Required White 1
💰 Best price
Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"
🔥 Most popular
Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat - Compatible with Alexa, Apple HomeKit and Google Home App - Polished Gold

Current trends

What your smart thermostat forgets after a power outage and how to get your schedule back
MAINTENANCE & TROUBLESHOOTING

What your smart thermostat forgets after a power outage and how to get your schedule back

04 Sep 2026
The Emerson Sensi Touch 2 does less on purpose: why the quiet mid-range pick keeps winning installs
The Emerson Sensi Touch 2 does less on purpose: why the quiet mid-range pick keeps winning installs
03 Sep 2026 · Emerson Sensi
Getting your thermostat ready for back-to-school: automated schedules that match a family's fall routine
Getting your thermostat ready for back-to-school: automated schedules that match a family's fall routine
08 Sep 2026 · Optimizing Temperature Schedules
The $80 smart thermostat is good enough: what budget picks get right that reviewers overlook
The $80 smart thermostat is good enough: what budget picks get right that reviewers overlook
04 Sep 2026 · Best Smart Thermostats 2024
Sleep mode, pet mode, allergy mode: how comfort profiles are turning thermostats into wellness devices
Sleep mode, pet mode, allergy mode: how comfort profiles are turning thermostats into wellness devices
22 Aug 2026 · Optimizing Temperature Schedules

Our latest product reviews

Independent and detailed analyses by our team

WiFi thermostat for Boiler Heating Smart Thermostat for Combi Boiler Compatible with Tuya app, 2-Wire Programmable Digital Wireless Thermostat with Voice Control, Battery-powered R9V 3.0
Wi-Fi programmable thermostats
★★★★★ ★★★★★
BEOK CONTROLS WiFi Thermostat Review: cheap way to make an old boiler a bit smarter
  • Easy upgrade from a basic 2‑wire thermostat to Wi‑Fi without touching mains wiring
  • Works with Tuya / Smart Life, Alexa and Google Assistant for remote and voice control
  • Good price for basic smart features like scheduling and app control
See all reviews →
° Wired Smart Thermostat X (2nd gen), Save Energy and Heating Costs, Control via App & Smart Speaker (Alexa, Siri, Google), USB-C Rechargeable, DIY Installation White 3.0
Smart thermostats compatible with Alexa
★★★★★ ★★★★★
tado° Wired Smart Thermostat X (2nd Gen) Review: smart, neat, but a bit picky and paywalled
  • Clean, compact design with easy-to-read LED display and simple swipe control
  • USB‑C rechargeable battery that can last around a year per charge, no AA batteries needed
  • Matter and Thread support, works well with Apple HomeKit, Alexa, and Google for wider automations
See all reviews →
Ecobee EB-STATE6P-01 Smart Thermostat Premium 3.0
Self-programming smart thermostats
★★★★★ ★★★★★
Ecobee Smart Thermostat Premium Review: solid smart features, but not as “set and forget” as you’d hope
  • Clean, modern design with a bright backlit screen and solid-feeling hardware
  • Strong smart features: Wi‑Fi app control, Siri/Alexa support, and Apple HomeKit compatibility
  • Can help reduce energy use if you set up schedules and are okay with slightly more flexible comfort
See all reviews →
THR99C3013 evohome Smart WiFi Thermostat Boiler Relay Box and and 3 Wireless Control Radiator Heads, White, 215 X 170 X 112 mm Thermostat with Boiler Relay + 3 Radiator Heads 3.0
Wi-Fi programmable thermostats
★★★★★ ★★★★★
Honeywell Home THR99C3013 evohome Review: room-by-room heating control that’s smart but a bit fussy
  • Genuine room‑by‑room zoning with up to 12 controllable zones
  • Wi‑Fi app control plus Alexa/Google/IFTTT integration for remote access
  • Can reduce heating bills if you actually use per‑room schedules and lower unused rooms
See all reviews →
See all reviews →

Our latest product comparisons

Top products selected and ranked by our experts

Comparison

Guide: the 20 best wi-Fi programmable thermostats (September 2026)

#1
Heatmiser NeoStat WiFi Thermostat Smart Programmable Room Thermostat for Wet Underfloor Heating & Central Heating 230V App Control Alexa Google Home - No Hub Required - White

LavaTap

Heatmiser NeoStat WiFi Thermostat — 230V App & Voice Control (White)

★★★★★ ★★★★★ 8.6/10
+ Designed specifically for wet underfloor and central heating with 3 A switching
+ Built-in WiFi with no extra hub needed, plus decent app control
#2
Ecobee3 Lite Smart Thermostat with Whole Home Sensors Bundle

Ecobee3 Lite + Home Sensors

★★★★★ ★★★★★ 8.5/10
#3
Hive Thermostat For Heating Control (Combi Boilers), With Hive Nano 3 Hub (OpenTherm), White, A Combi Boiler is Required

Hive Thermostat with Hive Nano 3 Hub (Combi Boilers)

★★★★★ ★★★★★ 8.5/10
See full comparison →
Comparison

The best self-programming smart thermostats: our top 6 (September 2026)

#1
Nest Learning Thermostat 3rd Generation, Black - Smart Thermostat - A Brighter Way To Save Energy, Black Black Single

Google

Nest Learning Thermostat (3rd Gen) - Black

★★★★★ ★★★★★ 8.4/10
+ Easy app control and clear schedule/history make heating simpler to manage
+ Learns your routine and can cut heating when you’re away to save energy
#2
Wired Smart Thermostat - Add-On Thermostat For Multizone Control, Digital Heating Management, Easy Installation, Save Heating Energy And Costs - Replacement Of Existing Wired Thermostats V3+ 1x Add-on Wired Smart Thermostat

tado

Wired Add-On Smart Thermostat (V3+)

★★★★★ ★★★★★ 8.4/10
#3
Smart Thermostat for Electric Underfloor Heating, WiFi Thermostat Works with Matter, HomeKit, Alexa, Google and Home Assistant, Smart Heating with Timer, App Control, Energy Saving, Hubless Matter Electric Heating

meross

Smart Thermostat for Electric Underfloor Heating (Wi‑Fi, Matter, HomeKit, Alexa, Google)

★★★★★ ★★★★★ 8.3/10
See full comparison →
Comparison

Which smart thermostats with color display to choose? Top 5 (September 2026)

#1
Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Compatible with Alexa, Energy Star Certified, C-wire Required, ST75W

Emerson Sensi Touch Wi‑Fi Thermostat (ST75W)

★★★★★ ★★★★★ 8.4/10
+ Clear touchscreen and simple app make everyday use and scheduling straightforward
+ Stable Wi‑Fi connection and solid Alexa/Google/HomeKit/SmartThings integration
#2
Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, Programmable, Wi-Fi, Data Privacy, Mobile App, Easy DIY, Works with Alexa, Energy Star Certified, ST76W, C-Wire Required, NEW FOR 2023 Black Thermostat

Sensi Touch 2 Smart Thermostat (Black)

★★★★★ ★★★★★ 8.4/10
#3
NSPanel WiFi Smart Light Switch, 2 Gang Switch Smart Home Control Panel With Temperature Control Function, Smart Lights Control, Work With Alexa & Google Home, Require Live& Neutral Wire, White

SONOFF

NSPanel 2-Gang WiFi Smart Light Switch (White)

★★★★★ ★★★★★ 8.0/10
See full comparison →
See all comparisons →

Spotlight

The data deal inside demand-response programs: what your utility learns when your thermostat earns credits
REMOTE CONTROL & AUTOMATION

The data deal inside demand-response programs: what your utility learns when your thermostat earns credits

20 Aug 2026

What your smart thermostat actually learns in its first month: a data-driven look inside the algorithm
Learning Thermostats
What your smart thermostat actually learns in its first month: a data-driven look inside the algorithm
11 Aug 2026
Smart thermostat firmware updates: what they change, what they break, and how to recover
Maintenance & Troubleshooting
Smart thermostat firmware updates: what they change, what they break, and how to recover
04 Aug 2026
Smart Thermostat GURU
Heat pump defrost cycles and your thermostat: why the wrong staging costs you real efficiency
Best Smart Thermostats 2024
Heat pump defrost cycles and your thermostat: why the wrong staging costs you real efficiency
13 Aug 2026
Your thermostat should know when electricity costs triple: the missing feature hiding in plain sight
Energy Savings & Efficiency
Your thermostat should know when electricity costs triple: the missing feature hiding in plain sight
30 Jul 2026
Solving the upstairs-downstairs temperature gap with sensors, smart vents, and one thermostat
Zoned Heating & Cooling
Solving the upstairs-downstairs temperature gap with sensors, smart vents, and one thermostat
08 Aug 2026
ZemiSmart's $35 Matter controller puts window AC units on your Apple Home dashboard
Wi-Fi Thermostats
ZemiSmart's $35 Matter controller puts window AC units on your Apple Home dashboard
21 Jul 2026
The Honeywell X2S at $80: the first Matter thermostat built for people who just want it to work
Honeywell Home
The Honeywell X2S at $80: the first Matter thermostat built for people who just want it to work
01 Aug 2026
Top Smart thermostats with color display
Touchscreen & Voice Control
Top Smart thermostats with color display
22 Jul 2026
Top Self-programming smart thermostats
Learning Thermostats
Top Self-programming smart thermostats
22 Jul 2026
Top Smart thermostats with C-wire required
Best Smart Thermostats 2024
Top Smart thermostats with C-wire required
21 Jul 2026
What happens to your thermostat data when you sell your house: the factory reset most people skip
Maintenance & Troubleshooting
What happens to your thermostat data when you sell your house: the factory reset most people skip
18 Jul 2026
Enphase opens pre-orders for IQ Air, a thermostat that sees your solar panels in real time
Wi-Fi Thermostats
Enphase opens pre-orders for IQ Air, a thermostat that sees your solar panels in real time
14 Jul 2026
Top Smart thermostats with voice control
Touchscreen & Voice Control
Top Smart thermostats with voice control
18 Jul 2026
Top Smart thermostat wiring adapters
Power Extenders & Adapters
Top Smart thermostat wiring adapters
15 Jul 2026
Ecobee Premium in mid-2026: where it still leads, where Nest caught up, and the Matter question
Ecobee
Ecobee Premium in mid-2026: where it still leads, where Nest caught up, and the Matter question
23 Jul 2026
Top Smart thermostats with energy saving mode
Best Smart Thermostats 2024
Top Smart thermostats with energy saving mode
11 Jul 2026
Running a Matter thermostat without a cloud account: the local-only setup that actually works in 2026
Installation & Compatibility
Running a Matter thermostat without a cloud account: the local-only setup that actually works in 2026
10 Jul 2026
Top Smart thermostats with scheduling
Best Smart Thermostats 2024
Top Smart thermostats with scheduling
09 Jul 2026
DIY install or call a pro: the wiring scenarios that make professional installation worth the cost
Installation & Compatibility
DIY install or call a pro: the wiring scenarios that make professional installation worth the cost
06 Jul 2026

Most popular

Our readers' favorite articles this month

#1 How to reset your smart thermostat: a practical guide
How to reset your smart thermostat: a practical guide
Maintenance & Troubleshooting · 20 Nov 2025
#2 How to Replace the Battery in Your Honeywell Home Pro Series Thermostat
How to Replace the Battery in Your Honeywell Home Pro Series Thermostat
Replacement Batteries · 21 Aug 2025
#3 A Comprehensive Guide to Using Your Amazon Smart Thermostat
A Comprehensive Guide to Using Your Amazon Smart Thermostat
Amazon Smart Thermostat · 20 Jun 2025
#4 How to fix your Honeywell thermostat not connecting to WiFi
How to fix your Honeywell thermostat not connecting to WiFi
Maintenance & Troubleshooting · 12 Nov 2025
#5 Setting Up Your Sensi Wi-Fi Thermostat: A Step-by-Step Guide
Setting Up Your Sensi Wi-Fi Thermostat: A Step-by-Step Guide
Wi-Fi Thermostats · 12 Jun 2025
Smart Thermostats
Accessories
Buying Guides
Smart Thermostats
View all posts →
tado° Wired Smart Thermostat X (2nd Gen) Review: smart, neat, but a bit picky and paywalled
tado° Wired Smart Thermostat X (2nd Gen) Review: smart, neat, but a bi...
13 Sep 2026
Honeywell Home THR99C3013 evohome Review: room-by-room heating control that’s smart but a bit fussy
Honeywell Home THR99C3013 evohome Review: room-by-room heating control...
13 Sep 2026
tado° Smart Radiator Thermostat Starter Kit V3+ Review: room-by-room control without calling a plumber
tado° Smart Radiator Thermostat Starter Kit V3+ Review: room-by-room c...
13 Sep 2026
Heatmiser NeoStat WiFi Review: a simple wired smart thermostat that mostly just gets on with it
Heatmiser NeoStat WiFi Review: a simple wired smart thermostat that mo...
07 Sep 2026
Accessories
View all posts →
Top Smart thermostat room sensors
Top Smart thermostat room sensors
03 Jul 2026
TP-Link Kasa KE100 Review: simple smart TRVs if you’re already in the Kasa world
TP-Link Kasa KE100 Review: simple smart TRVs if you’re already in the...
21 Jun 2026
SONOFF TRVZB Review: cheap Zigbee smart radiator valve that’s great with Home Assistant but clunky with the app
SONOFF TRVZB Review: cheap Zigbee smart radiator valve that’s great wi...
21 Jun 2026
Smart Home Thermostat Radiator Valve TRV801Z Review: cheap smart heating if you’re ready to tinker
Smart Home Thermostat Radiator Valve TRV801Z Review: cheap smart heati...
21 Jun 2026
Buying Guides
View all posts →
tado° Wireless Smart Thermostat X (2nd gen) Review: a sensible upgrade from Hive and Nest if you’re ready to tinker a bit
tado° Wireless Smart Thermostat X (2nd gen) Review: a sensible upgrade...
07 Sep 2026
Top Smart thermostats for electric heating systems
Top Smart thermostats for electric heating systems
06 Jul 2026
How to choose the right smart thermostat and find a smart home automation company near you
How to choose the right smart thermostat and find a smart home automat...
04 Jul 2026
Top Smart thermostats for central heating and cooling
Top Smart thermostats for central heating and cooling
30 Jun 2026
Energy & Comfort Tips
View all posts →
How ovrc management reshapes remote control for smart thermostats
How ovrc management reshapes remote control for smart thermostats
20 Jul 2026
How smart thermostats turn window lighting into a tool for comfort and energy savings
How smart thermostats turn window lighting into a tool for comfort and...
19 Jul 2026
Smart house lighting control for effortless comfort and energy savings
Smart house lighting control for effortless comfort and energy savings
15 Jul 2026
Turning on the thermostat's dehumidify setting: the summer feature most homeowners ignore
Turning on the thermostat's dehumidify setting: the summer feature mos...
08 Jul 2026
Top Brands
View all posts →
Ecobee Smart Thermostat Premium Review: solid smart features, but not as “set and forget” as you’d hope
Ecobee Smart Thermostat Premium Review: solid smart features, but not...
13 Sep 2026
Google Nest Learning Thermostat Pro Edition (4th Gen) Review: Smart heat control that mostly runs itself
Google Nest Learning Thermostat Pro Edition (4th Gen) Review: Smart he...
13 Sep 2026
How domotics companies use Google Nest to redefine smart thermostat control
How domotics companies use Google Nest to redefine smart thermostat co...
06 Jul 2026
Honeywell Home T9 reviewed against Nest and Ecobee: where the underrated pick wins
Honeywell Home T9 reviewed against Nest and Ecobee: where the underrat...
03 Jul 2026