Ecobee3 vs Ecobee4: Which Smart Thermostat is Right for You?

The Ecobee3 and the Ecobee4 will be discussed in-depth to give a better understanding of what they each offer their users. Smart Thermostats are a great way to get the most out of your home. But, which one is right for you?

There are so many different smart thermostat models out there with new ones coming out constantly. How do you know which one is right for your home?

There are plenty of Ecobee smart thermostats on the market. The Ecobee4 has all-new features like scheduling and more sensors, but does it have what you need?

This article will go over the pros and cons of the Ecobee3 vs Ecobee4, as well as answer questions that you may have about these products.

Ecobee 3 Smart Thermostat Overview

Ecobee3 Smart Thermostat Update Adds HomeKit Support for Remote Sensors -  MacRumors

Ecobee 3 is a smart thermostat that was released in 2013. It was the first thermostat to include a sensor for each room, which helps it to provide optimal comfort for that room based on its orientation and movement.

The ecobee 3 Smart Thermostat is a great choice for people who want to save energy and have optimal comfort in their homes. The thermostat includes a sensor for each room, so it knows how to provide the best comfort depending on the room’s orientation and movement.

Additionally, the Ecobee 3 has Eco+ mode, which intelligently heats or cools your home to your needs without wasting energy by sensing whether you’re at home or not.

The Ecobee 3 Smart Thermostat is a great choice for those looking for a thermostat that can integrate with voice assistants. The thermostat is easy to install and comes with tons of tutorials for walkthroughs on how to use the thermostat.


  • The Ecobee 3 is one of the best-rated smart thermostats on the market and has a variety of features that set it apart from the competition. Some of these pros include:
  • Ecobee is considered the complete smart thermostat because it can be controlled by voice through Amazon Echo or Apple TV, as well as via a smartphone app.
  • It also comes equipped with sensors that can detect whether someone is home or not, which helps conserve energy when no one is around.


  • The Ecobee3 Smart Thermostat does have a few drawbacks, however. One is that it can be quite expensive, costing almost twice as much as the Nest Learning Thermostat.
  • It’s also worth noting that the Ecobee3 doesn’t work with all heating and cooling systems, so you’ll need to double-check to make sure it will work with your home before you buy it.
  • Additionally, the Ecobee3 can be difficult to set up for people who are not technologically savvy.

Ecobee 4 Smart Thermostat Overview

Ecobee4 Review | PCMag

The Ecobee 4 and the Smart Thermostat are both wifi-enabled thermostats that use Alexa, Google Assistant, and Apple HomeKit. The Ecobee 4 has a few exclusive features over the Smart Thermostat, including the Follow Me feature which allows you to have your thermostat follow you around the house.

For starters, the Ecobee4 has Alexa built-in, so you can control your thermostat with your voice. Additionally, the Ecobee4 has a slightly larger screen (5 inches) than the Ecobee3 (3.5 inches), It comes with a 3-year limited warranty.

The Ecobee 4 Smart Thermostat is a great choice for people who want the added features of compatibility with HomeKit, Wink, IFTTT, and Google Assistant. The 5″ 7 day weather forecast is especially useful, as it can help people plan their days better. Additionally, the built-in temperature sensor can help save on heating and cooling costs.

The Ecobee4 Smart Thermostat is the latest model of the Ecobee series. The most significant difference between this model and the previous models is that it has a built-in history system information. This allows users to have easier control of their thermostats in the future, as they will be able to see what settings have worked best for them in the past.


The Ecobee 4 Smart Thermostat is a great purchase for a number of reasons. Some of its best features include:

  • It’s exceptionally smart and can be compared to the Nest and Honeywell thermostats, which are both well-known brands.
  • All three thermostats cost around $150-250 dollars, but the price is unrelated to their functionality.
  • Each of these products offers unique features which make each worth considering for purchase.
  • The Ecobee 4 Smart Thermostat improves automation by learning from manual fine-tuning. This means that you don’t have to keep adjusting it every time you leave or come home; the thermostat will learn your habits over time.
  • The Nest and Honeywell are other companies that have created a name for themselves in the smart thermostat industry, but Ecobee has been praised as being the best option on the market.
  • Ecobee4 is also the newest model of Ecobee, so you’re guaranteed all of the latest features and updates if you decide to buy it.


There are a few potential downsides to the Ecobee 4.

  • First, it is more expensive than some of the other models available on the market.
  • Second, it can take a little while to learn all of its features- about a month for the ecobee 3 to end its learning process. However, with further manual fine-tuning, the Ecobee 4 will continue to learn and advance the automation process.
  • Finally, energy savings may not be as high as they could be if you do not have time to customize your settings or if you do not live alone.

What is the difference between Ecobee3 Vs Ecobee4?

Ecobee3 and Ecobee4 are both smart thermostats, but there are some key differences between the two.

Firstly, Ecobee3 has a shorter warranty period than the 4-year warranty offered with Ecobee4. Secondly, Ecobee4 is slightly bigger than the 3. Ecobee 4 has Amazon Alexa built-in, meaning it also comes with an Echo Dot.

Ecobee3 was recently discontinued and can still be found on their website if you’re looking for a refurbished model – though the stock may be running low.

Ecobee3 vs Ecobee4: The Ultimate Comparison

Setup Process

The Ecobee3 installation is not so easy. You have to remove the front panel of your thermostat and connect some wires, which is a little difficult if you’re not familiar with electrical work.

The Ecobee4 may take a good bit more time to install because of the steps involved- such as downloading the app, creating an account, connecting to your Wi-Fi network, and pairing the remote sensors.

However, it is worth it because the Ecobee4 can configure accessories like a humidifier. Plus, it’s compatible with 802.11 b/g/n (2.4Ghz) and automatically detects nearby wireless hotspots to give users stress-free connectivity- meaning you don’t have to enter your SSID and password every time you want to control your thermostat from afar.

If you do experience any trouble with your Ecobee3 device, be sure to check out the user’s manual which is available on the product website.

Design and Interface

The design and dimensions of the Ecobee devices are almost identical. The Ecobee4 has a brighter display than the other two models, but it is not much different in terms of their looks. The Ecobee4 has a glowing LED bar.

The design of the Nest Thermostat is almost unnoticeable, which may be a good or a bad thing depending on your opinion. It’s definitely less noticeable than either the Ecobee or Ecobee4 thermostats.

The interface of the Ecobee4 and the other models are identical, aside from a few small changes to the interface of the Ecobee4. For example, on the main screen, there is now a weather report that you can scroll through.

Otherwise, all aspects of both devices are accessible through either their web app or mobile application.

The new model is friendly and easy to use, with all aspects of it accessible through either their web app or mobile application. One downside though is that if you want to control your device using voice commands, you’ll need to have an Amazon Echo speaker since it doesn’t have its own microphone like the Echo does.

Third-Party Integrations

The Ecobee products support a wide range of third-party integrations. For example, the Ecobee3 and Ecobee4 can be paired up with a purchased Amazon Echo or Eco Dot for some integration, but since the Ecobee4 is already built-in Alexa with a voice command, integration becomes more friendly and functional.

The Ecobee4 also has many more functions than the previous models, like playing music or ordering an Uber.

Room Sensing and Operating Patterns

Ecobee3 and Ecobee4 come with a room sensor as well as a remote sensor, which is common in other models. Each sensor covers 40 feet through walls and ceilings in order to cover the entire home.

The Ecobee4 has a single sensor included, which is perfect for rooms that get the most use. Room sensors help the thermostat make adjustments based on the movements they detect. Room sensors make a smart thermostat more efficient.

Energy Savings

Ecobee3 is an energy saver and can be expected to save 23% annually on heating and cooling expenses. The thermostat can gather weather forecasts to improve performance in controlling the indoor temperature, but the difference in savings might vary based on location.


The Ecobee4 is the most simple and easiest to use of the ecobee smart thermostats. It has a more modern design, touchscreen display and app control than the Ecobee3 Lite and Ecobee3. The voice control features are also more advanced on the Ecobee4.

Touchscreen Display

One of the most noticeable differences between the Ecobee3 and Ecobee4 is the touchscreen display. The Ecobee3 has a small, monochrome screen on the front of the unit. The Ecobee4 has a large, full-color touchscreen display.

The touchscreen display is one of my favorite features of the Ecobee4. It’s responsive and easy to use. You can adjust all settings more directly on the screen. If you need something more complex than what’s available on the touchscreen display, you’ll need to adjust settings by going through menus.

The Ecobee4 is a smart thermostat with touchscreen controls.

App Control

Ecobee3 and ecobee4 can both be controlled using the Ecobee app. The application is heavily similar to that of the touchscreen, with an interface which also takes slightly longer than usual for initial load time.

You’ll be able to control your system from anyone in the world with an internet connection through this interface.

Smart Home Integration

The ecobee4 can be connected to an existing smart hub and controlled using Alexa. The Ecobee4 is compatible with Amazon Alexa, Google Assistant, Apple HomeKit and Nest. The Ecobee 4 is also compatible with Samsung SmartThings hardware products.

This means that the ecobee4 can be controlled with the Amazon Alexa app, the Google Assistant app, or the Apple Home app, as well as with the Samsung SmartThings app. Additionally, because of its full voice control capabilities, the Ecobee4 is the best option for those looking to fully automate their home.

The Ecobee3 was also compatible with Amazon Alexa but did not have full voice control capabilities. The Ecobee3 was still the top smart thermostat on the market due to its affordability and compatibility with Alexa.

However, now that the ecobee4 has been released, it is a smarter choice because it integrates Alexa into its design. Both the Ecobee3 and the Ecobe3 are identical in their features and abilities

Voice Control Features

The Ecobee4 Smart Thermostat can be controlled with Amazon Alexa. This thermostat also plays well with other smart home ecosystems, such as Google Home and Apple Homekit. With the Ecobee3 and Ecobee4, you can control your home’s temperature from anywhere with a SmartSensor for $80 per pack of two.

Humidifier, Dehumidifier, Ventilator Support

The Ecobee4 now supports humidifiers, dehumidifiers, and ventilators. This means that if you have one of these devices connected to your HVAC system, you can control it using the Ecobee4. The Ecobee3 Lite also supports these devices.

Far Field Voice Recognition

The Ecobee4 includes the Amazon Echo inside, so you can control the thermostat with your voice. There is a drawback where you may activate the thermostat inadvertently if an Amazon Echo commercial comes on television. If you already have an Amazon Echo or Dot, use one of those to communicate with the Ecobee4.

The Ecobee4 wins because it’s the only device with Alexa built-in. The Ecobee4 is more expensive than its predecessor. The Ecobe3’s software is easier to use.

Power Extender Kit

The Power Extender Kit, or PEK, is a small device that allows you to install the ecobee4 in houses that do not have a C wire. The PEK is designed to allow installation of the ecobee4 in cases where the HVAC system does not have a common wire (C-wire).

In older homes, the C wire may not be installed and you will need to use the PEK to connect it to your HVAC system. If you already have a PEK installed, you can keep your own PEK in place.

The terminals of the Ecobee4 are moved, so if you upgrade from an existing Ecobee3 system, you will need to use the new terminal of the 4th model (the one that comes with it).

The Ecobee4 does not require a replacement PEK.

Comparison Table

Ecobee3 Ecobee4
LCD Touch Screen Yes Yes
Humidifier, Dehumidifier, Ventilator Support Yes Yes
Smart Device Support Yes Yes
Amazon Alexa Connectable Built-in
Power Extender Kit Included Included
Room Sensors 1 Included 1 Included
Mobile App Control Yes Yes
Speaker No Yes
Far Field Voice Recognition No Yes
Motion Sensors Yes Yes
Price Check on Amazon Check on Amazon

Ecobee 3 vs Ecobee 4: Which One is the Better Thermostat for Your Home?

The Ecobee4 has Alexa built-in, which allows you to control various functions of your smart home devices with your voice. The Ecobee3 is still one of the best options for smart home installation on a budget. It doesn’t have Alexa built-in, but it does have many of the same features as the Ecobee4 and is less expensive.

The Ecobee3 and the Ecobee4 are two of the most popular smart thermostats on the market. They offer total home automation and voice control over your HVAC system. The only difference between the two is that the Ecobee4 has Alexa integration, while the Ecobee3 does not.

The Ecobee3 and the ecobee4 are both great smart thermostats, but there are some differences between the two. The most notable difference is that the ecobee4 has Alexa built-in, so you can control it with your voice.

You can also achieve the same functionality (without the loss of abilities) by purchasing the Ecobee3 and an Amazon Echo or Dot. However, with the integration and ability to link Alexa-enabled devices, the smarter choice is to go with the ecobee4.

Is Ecobee SmartThermostat worth it?

Ecobee smart thermostat is a great buy if you’re looking for a thermostat with Alexa integration. The Ecobee4 is the newest version of the Ecobee smart thermostat, and it offers some minor upgrades which make it easier to use. It’s worth the extra cost if you’re already familiar with Amazon’s voice assistant, Alexa.

However, if you don’t want to spend the extra money on the Ecobee4, you can always purchase an Echo Dot and connect it to your Ecobee3. This will give you all of the same features as the Ecobee4 without having to upgrade your thermostat.

The Ecobee3 Lite may be a better option for those who are looking for a less expensive alternative that still has some of the same features as the full-priced models. Keep in mind that this model does not have Alexa integration, so it may be less compatible with certain systems.

The price of each product has nothing to do with its functionality. Each thermostat is built on a different concept and idea that takes about a month to end fully. For example, the Nest was built primarily for energy conservation, while Ecobee focused on making their device easier to use than any other model currently available.


Difference Between the Ecobee4 versus Ecobee3 Lite

The Ecobee4 also has Alexa voice service. The Ecobee4 is the newer product and is able to access Amazon’s cloud virtual assistant, even without an Amazon Echo device. The Ecobee4 includes Alexa, but the Ecobee3 doesn’t.

The Ecobee4 has a room sensor included in its purchase price; the cost of this model is $70 more than the 3. It’s personal preference whether or not you want to pay for Alexa with your purchase of an upgraded model (like the 4).

TheEcobe3 and the Ecobee4 are actually quite similar, but the newer version is more expensive. The difference between these two products comes down to what features you want in your new smart thermostat like sensors for rooms.

If you don’t need those features, then save money and buy the Ecobe3 Lite version which does not come with Alexa built-in and does not have a room sensor.

The benefits of Alexa are amazing. You can have Alexa read the news or order pizza with just voice commands. So if those features appeal to you, then it might be worth spending a little extra for the Ecobee4. But if you’re looking for a basic thermostat with no frills, the Ecobee3 Lite is a solid choice that still offers many smart features.

I have an Ecobee3 and want the Ecobee4, will my room sensors work with the Ecobee4?

Yes, the Ecobee4 has room sensors that allow it to precisely track the temperature. The room sensors are compatible with all ecobee models. The extra cost is for adding more than one room or wall sensor.

Will the Ecobee3 or Ecobee4 work with Wink?

Yes, the Ecobee3 lite, Ecobee3, and Ecobee4 will work with Wink if the Ecobee app is updated to the latest version. You can now control your ecobee thermostat from the Wink app.

Does Ecobee have geofencing?

Yes, the Ecobee thermostat has been updated to include geofencing. With this feature, you can set your Ecobee to turn on or off depending on your location. For example, you can have it turned off when you’re at work and have it turned on when you get home so that you’re not coming into a cold house. The Ecobee will work with Amazon Alexa, Google Home, IFTTT, Samsung SmartThings hub, which has a Wink relay, and Apple HomeKit.

How many versions of ecobee are there?

There are three versions of the ecobee thermostat: the ecobee3 lite, the ecobee3, and the ecobee4. Each has its own unique features.

How do I know if I have an ecobee 3 or 4?

The ecobee4 is a little more expensive than the ecobee3 but comes with Alexa built-in. If you want to control your thermostat using voice commands, then you’ll need to get the ecobee4. There are three ecobee smart thermostat options available–the Ecobee3, the Ecobee3 lite, and the Ecobee4.

The Honeywell T5 and the ecobee4 both offer voice control, a built-in Alexa, and room sensor technology. The difference between these two models is that the Ecobee4 does not require a hub to operate.

The Ecobee thermostat is a great product at a good price and it’s out of stock right now, but will ship soon if you hurry. You can buy it now for a discounted price.

Are ecobee3 sensors compatible with ecobee4?

Yes, ecobee3 sensors are compatible with ecobee4. If you have an ecobee3 and want to add room sensors, you need to first install the Ecobee4. After that, you can remove the batteries from your old room sensors and put them in new ones after casting a magic spell on them. The only requirement for the ecobee3 to be compatible with ecobee4 is that they both have sensors.

The release date of the 2nd gen ecobee3 was in 2016, which means it will not work with the 3rd gen thermostat. The depth from the wall on the 4th gen and lower models is 1 inch while on the 6th generation it’s 0.9 inches.