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Expert Picks for January 2026

Best Smart Thermostats

Save money and energy with intelligent climate control. Smart thermostats learn your schedule and optimize comfort automatically.

Last updated: January 28, 2026
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Best Overall Our top recommendation
Best Overall
Nest Learning Thermostat

Google

Nest Learning Thermostat

4.4 (15,234 reviews)

The smartest thermostat that learns your preferences and automatically creates energy-saving schedules. Premium design and features.

Compatibility

Most 24V systems

Display

Color LCD

Sensors

Temperature, humidity, motion, ambient light

Learning

Auto-schedule creation

Pros

  • βœ“ Learns your schedule
  • βœ“ Beautiful design
  • βœ“ Energy savings

Cons

  • βœ— Expensive
  • βœ— Complex installation
  • βœ— Google ecosystem dependent

Head-to-Head Comparison

ProductRatingPrice Action
Nest Learning Thermostat
Nest Learning Thermostat Best
Google
4.4
$249 View
SmartThermostat with Alexa
SmartThermostat with Alexa
ecobee
4.5
$219 View
T9 Smart Thermostat
T9 Smart Thermostat
Honeywell
4.3
$199 View
Wyze Thermostat
Wyze Thermostat Value
Wyze
4.4
$89 View
Sensi Touch Smart Thermostat
Sensi Touch Smart Thermostat
Emerson
4.2
$129 View

* Prices may vary. As an Amazon Associate, we earn from qualifying purchases.

All Recommended Products

Best Overall
Nest Learning Thermostat

Google

Nest Learning Thermostat

4.4 (15,234 reviews)

The smartest thermostat that learns your preferences and automatically creates energy-saving schedules. Premium design and features.

Compatibility

Most 24V systems

Display

Color LCD

Sensors

Temperature, humidity, motion, ambient light

Learning

Auto-schedule creation

Pros

  • βœ“ Learns your schedule
  • βœ“ Beautiful design
  • βœ“ Energy savings

Cons

  • βœ— Expensive
  • βœ— Complex installation
  • βœ— Google ecosystem dependent
Premium Pick
SmartThermostat with Alexa

ecobee

SmartThermostat with Alexa

4.5 (23,456 reviews)

More than a thermostat - it's a smart home hub with built-in Alexa and music streaming. Room sensors ensure even heating/cooling.

Compatibility

Most systems + heat pumps

Display

Color touchscreen

Voice

Built-in Alexa

Sensors

Room sensor included

Pros

  • βœ“ Built-in Alexa
  • βœ“ Room sensors included
  • βœ“ Music streaming

Cons

  • βœ— Subscription for advanced features
  • βœ— Bulky design
  • βœ— Complex setup
T9 Smart Thermostat

Honeywell

T9 Smart Thermostat

4.3 (12,678 reviews)

Focuses on even temperature control with room sensors and geofencing. Professional features without the complexity.

Compatibility

Most systems

Display

Color touchscreen

Features

Room sensors, geofencing

Control

App, voice assistants

Pros

  • βœ“ Room sensors
  • βœ“ Geofencing
  • βœ“ Good app

Cons

  • βœ— No learning features
  • βœ— Basic interface
  • βœ— Sensor batteries
Best Value
Wyze Thermostat

Wyze

Wyze Thermostat

4.4 (8,934 reviews)

Amazing value smart thermostat that covers the essential features. Perfect for trying smart heating without big investment.

Compatibility

Most common systems

Display

Basic LCD

Features

Scheduling, geofencing

Installation

Guided setup

Pros

  • βœ“ Incredible value
  • βœ“ Easy installation
  • βœ“ Good app

Cons

  • βœ— Limited compatibility
  • βœ— Basic design
  • βœ— No advanced features
Budget Pick
Sensi Touch Smart Thermostat

Emerson

Sensi Touch Smart Thermostat

4.2 (15,678 reviews)

Simple, reliable smart thermostat that's easy to install and use. Great for those wanting basic smart features without complexity.

Compatibility

Most HVAC systems

Display

Color touchscreen

Features

Scheduling, geofencing, usage reports

Installation

DIY friendly

Pros

  • βœ“ Easy installation
  • βœ“ Wide compatibility
  • βœ“ Good app

Cons

  • βœ— No learning features
  • βœ— Basic design
  • βœ— Limited smart features

Buying Guide: How to Choose Smart Thermostats

Smart Thermostat Buying Guide

HVAC Compatibility: Check your current wiring before buying. Heat pumps and unusual systems may need specific models.

C-Wire Required: Most smart thermostats need a common wire for power. Some models include adapters for systems without one.

Learning vs Programming: Learning thermostats adapt automatically, programmable ones require manual scheduling. Consider your lifestyle.

Room Sensors: Help with uneven heating/cooling by monitoring multiple rooms instead of just the thermostat location.

Frequently Asked Questions About Smart Thermostats

Do I need a C-wire for a smart thermostat?

Most smart thermostats require a C-wire for constant power. Some models include adapters or use power-stealing technology, but a C-wire is most reliable.

How much money can a smart thermostat save?

EPA estimates 8% savings on heating/cooling costs. Actual savings depend on your usage patterns and local energy costs - typically $100-200/year.

Can I install a smart thermostat myself?

Most people can install basic systems by matching wire colors. Complex systems (heat pumps, multi-stage) may require professional installation.

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