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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Neither the Google Nest Learning Thermostat (4th gen) nor the ecobee Smart Thermostat Premium is a universal winner. Nest is the stronger fit for a home built around Google Home or Matter and for buyers who want its Smart Schedule features. ecobee stands out for Apple HomeKit support, built-in Alexa, and its included SmartSensor and Power Extender Kit. First, make sure the specific thermostat works with your HVAC equipment and wiring.
Which thermostat should you choose?
- Choose Nest Learning Thermostat (4th gen) if Google Home or Matter integration and Nest’s scheduling features are your priorities, and Google’s compatibility checker confirms your system will work.
- Choose ecobee Smart Thermostat Premium if you want Apple HomeKit support, built-in Alexa, or the included Power Extender Kit, and ecobee’s compatibility checker confirms your system will work.
- Choose based on your rooms, not just the hallway thermostat location if temperatures vary around the home. Both models include one room sensor.
- Do not choose on the basis of advertised savings alone. The available figures use different baselines and do not establish that either model saves more than the other.
These are the two premium models compared here; features differ across each brand’s other thermostat models.
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How Nest and ecobee compare
| Decision | Nest Learning Thermostat (4th gen) | ecobee Smart Thermostat Premium |
|---|---|---|
| HVAC compatibility | Google lists many 24V systems, including gas, electric, oil, forced air, heat pump, and radiant equipment. It specifies support for multiple heating and cooling stages and certain accessories. Google’s specifications and wiring compatibility provide the model details. | ecobee lists most 24VAC systems, including furnaces, air conditioners, heat pumps, boilers, and some PTAC or fan-coil units; it supports one accessory device. See ecobee’s product details. |
| Power and wiring | Most homes do not need a C wire, but some systems may require one or a Nest Power Connector. | Uses 24VAC through C and Rc. The included Power Extender Kit can enable installation in many homes without a fifth wire. |
| Included room sensor | One Nest Temperature Sensor (2nd gen). | One SmartSensor. |
| Smart-home platforms | Google Home app required for setup; supports Google Home and Matter. | Supports Apple HomeKit, Amazon Alexa, Google Assistant, and Samsung SmartThings. Siri use requires a compatible Apple home hub. |
| Distinctive features | Smart Schedule, Adaptive Eco, and other Google energy features. | Built-in Alexa and security-hub functions; some monitoring and alarm functions require an ecobee Smart Security subscription. |
Compatibility descriptions are not a guarantee for an individual home. Check your equipment model, voltage, heating and cooling stages, accessory wiring, and the manufacturer’s checker before buying.
Check HVAC compatibility and wiring first
Nest: broad 24V support, with terminal limits
Google says the 4th-generation Learning Thermostat works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant equipment. Its specifications cover up to three heating and cooling stages, up to three heat-pump stages with auxiliary or alternate and emergency heat, fan control, and certain humidifier, dehumidifier, and ventilation connections. Google notes that some terminal combinations are limited, so use its model-specific wiring and compatibility information rather than relying on a general list.
#1 Best Overall
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page.Connectivity Protocol : Wi-Fi.Connectivity Protocol : Wi-Fi
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory. Lock feature: No
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home; easily program an energy efficient schedule in the Google home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
- Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
ecobee: confirm accessories and specialized equipment
ecobee describes the Premium as compatible with most 24VAC systems, including conventional furnaces and air conditioners, heat pumps with auxiliary heat, boilers, and PTAC or fan-coil units with up to three fan speeds. It supports one 1-wire or 2-wire accessory, such as a humidifier, dehumidifier, or ventilator. Check the ecobee compatibility information for your specific installation.
Understand the C-wire difference
Nest is designed to work without a C wire in most homes, though some systems need a C wire or Nest Power Connector. ecobee’s listed power connection uses C and Rc, and the Premium package includes a Power Extender Kit that can help in many homes without a fifth wire. Neither statement replaces checking the existing wiring and how the HVAC equipment behaves; when the wiring or system is unclear, consult an HVAC professional before installation.
Rank #2
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Connectivity : Wi-Fi - 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy Please refer to the product description section below for all applicable legal disclaimers.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home. Lock feature: No
- Programmable thermostat that lets you create an energy efficient schedule in the Google Home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
Compare sensors and smart-home fit
Both thermostats include one room sensor, which can help account for temperatures away from the thermostat itself. Nest includes a Nest Temperature Sensor (2nd gen); ecobee includes a SmartSensor. If you need to account for several rooms, compare the cost of additional compatible sensors as well as the included package. One sensor does not automatically make every room the same temperature.
Nest requires the Google Home app for installation and setup, and supports Google Home and Matter. ecobee works with Apple HomeKit, Amazon Alexa, Google Assistant, and Samsung SmartThings. The ecobee Premium also has built-in Alexa. To use Siri with ecobee, pair it with a compatible Apple home hub, such as HomePod or HomePod mini. Some of ecobee’s security and alarm capabilities also depend on an ecobee Smart Security subscription.
Rank #3
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Control the temperature with your voice using smart home devices that work with Google Assistant or Alexa[3]Nest Renew makes it simple to support clean energy right from home; it works with your Nest Thermostat[5] to help you automatically prioritize your usage[6] to times when energy is cleaner or less expensive.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory. You can control your Nest Thermostat manually when there's no internet connection.
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home
- Programmable thermostat that lets you create an energy efficient schedule in the Google Home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]. | Control the temperature with your voice using smart home devices that work with Google Assistant or Alexa[3].
Do not treat savings claims as a head-to-head result
ecobee advertises up to 26% annual heating and cooling savings compared with holding a home at 72°F/22°C. The company says the figure comes from its internal analysis conducted in April 2021 and that actual annual savings vary with energy use and location. It is a manufacturer claim against a fixed-temperature baseline, not independent proof that ecobee saves more than Nest.
A separate 2020 study by ecobee authors Kevin Trinh and Tamara Dzubay examined an eco+ feature-suite experiment involving more than 200,000 ecobee users in the United States and Canada. The authors reported 6% additional HVAC cooling energy savings, 8–19% additional cooling-bill savings for customers on time-of-use rates, 33% average enrollment in unincentivized demand-response events, and a 0.91 kW average peak-demand reduction per thermostat. Those results were measured against existing ecobee devices without the feature suite; they are not a Nest comparison or a result specific to owning the Smart Thermostat Premium. See the 2020 study.
Rank #4
- Nest’s smartest, most advanced thermostat yet, the Google Nest Learning Thermostat (4th gen) is a beautiful, brilliant way to save energy, keep your home comfortable, and help make sure your heating and cooling systems are running smoothly[4]
- Savings you can count on: The Nest Learning Thermostat can help save up to 31% on heating and cooling bills[2]
- Improved compatibility: It works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant, and no C wire is required for installation in most homes; visit the Nest Compatibility Checker for more info[5]
- Easy control in the Google Home app: Adjust on your phone from anywhere[1] or by using your voice with Alexa, Siri, or Google Assistant smart speaker[3], it’s easy to install yourself and it’s Matter compatible for simple integration into your smart home[5]
- Beautiful design: With a 60% larger display[11] and Dynamic Farsight, you can see info from across the room[1]; choose the design, like a clock or the weather; it automatically adjusts brightness for the best readability or you can adjust manually
Because the published claims use different comparisons and conditions, they do not establish which thermostat will lower your bill more. Your climate, utility rates, occupancy, HVAC efficiency, and comfort settings all affect results.
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Prices and offers change. At the time represented by the cited product pages, Google listed the Nest Learning Thermostat (4th gen) at $239.99, discounted from $279.99. ecobee listed the Smart Thermostat Premium at $259.99, with a separate sale price appearing on its product listing. Treat those as page-specific offers, not guaranteed current prices. Check the manufacturers’ listings and any local utility rebates when you are ready to buy; installation costs depend on your equipment and wiring.
Quick Recap
Best Value
- Nest’s smartest, most advanced thermostat yet, the Google Nest Learning Thermostat (4th gen) is a beautiful, brilliant way to save energy, keep your home comfortable, and help make sure your heating and cooling systems are running smoothly[4]
- Savings you can count on: The Nest Learning Thermostat can help save up to 31% on heating and cooling bills [2]
- Improved compatibility: It works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant, and no C wire is required for installation in most homes; visit the Nest Compatibility Checker for more info[5]
- Easy control in the Google Home app: Adjust on your phone from anywhere[1] or by using your voice with Alexa, Siri, or Google Assistant smart speaker[3], it’s easy to install yourself and it’s Matter compatible for simple integration into your smart home[5]
- Beautiful design: With a 60% larger display[11] and Dynamic Farsight, you can see info from across the room[1]; choose the design, like a clock or the weather; it automatically adjusts brightness for the best readability or you can adjust manually
A quick decision checklist
- Identify your HVAC system. Note its model, voltage, heating and cooling stages, heat-pump configuration, and any accessory wiring.
- Run the relevant compatibility check. Use Google’s Nest specifications and compatibility information or ecobee’s Premium product page.
- Check thermostat wiring. Confirm whether your setup has a C wire and follow the appropriate manufacturer guidance for the Nest Power Connector or ecobee Power Extender Kit.
- Match the ecosystem and room coverage. Choose the platform you already use, then decide whether the included sensor is enough or whether you need additional room sensors.
- Compare the actual purchase terms. Verify current price, rebates, and any professional installation cost instead of relying on a past sale or a savings headline.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
