5 Best Smart Thermostats of 2023 - wisehomeguides.com
Nest Learning Thermostat

5 Best Smart Thermostats of 2023

Smart thermostats have now become the most important part of smart home systems. Their built-in sensors can monitor the temperature of the home at any time, and make the environment more comfortable. They can even automatically distinguish between people who are or are not in the house. This allows the heating system to be used more efficiently.

At the same time, they can also be controlled with a smartphone, remotely view and adjust the indoor temperature, and all this can be achieved with just one click of the screen.

Here, we recommend to you the five most popular smart thermostat products on the market. They are not only easy to use but can also be integrated with other smart homes or electronic devices.

Editors top two picks

Nest Learning Thermostat

Nest Learning Thermostat

Ecobee4 Thermostat

Ecobee4 smart thermostats

Nest Learning Thermostat

It is the most advanced thermostat, with an elegant and modern appearance, a large display screen automatically learns user needs, and a human sensor detects user status.

Nest Learning Thermostat

And, it adopts a round appearance, giving a new feeling of elegance and modernity.

Also, it can record the user’s adjustment operations for more than 10 days, learn to understand the user’s temperature needs, and thus automatically adjust the indoor temperature and humidity, which can effectively save energy and provide the best constant temperature experience. At the same time, the constant temperature at night can bring you Sleep more comfortably.

There is a human sensor inside the Nest. When you move, the screen will light up when you are far away. At the same time, it will detect whether the geofence of your mobile phone is nearby, so as to detect whether the user is at home, and will enter the energy saving state when not at home. Comprehensive evaluation nest is very good.

Similarly, Nest can save users between 12% and 15% of heating and cooling costs on average every year.


The built-in Alexa speaker and microphone can be controlled through the iPhone App or Siri voice commands.

Ecobee4 smart thermostats

Ecobee4 smart wireless thermostat has built-in alexa voice intelligent service function of amazon directly. The product also supports Homekit.

Ecobee4 can place its sensors in different rooms and intelligently read the room temperature to adjust the operation of the air conditioner. It is possible to avoid problems caused by single sensors such as overcooling of the room because the temperature sensor is near the kitchen. It can connect to the Internet by itself. After connecting to Apple’s HomeKit platform, users can control it through the App or Siri voice commands on the iPhone, and automatically monitor and adjust the room temperature according to whether there is someone in the home or a preset specific time. Ecobee4 can also monitor the situation in the home through sensors in various rooms.

It circumvents the complicated scheduling of regular thermostats, allows remote access through applications and / or the Web, and promises to save energy bills through higher efficiency, and can distinguish whether you are at home.

The installation of this product is slightly more complicated than ordinary HomeKit products, in theory it can be completed within 30 minutes.

Nest Thermostat E

E is cheaper than the previous generation NEST products, the matte LCD screen is more clean and beautiful, and the function is also excellent.

NEST THERMOSTAT E smart thermostat

Nest Thermostat E, instead of the previous metal ring and similar mobile phone display, instead of plastic dial and a matte LCD display. The design style of Thermostat E is quite “soft”. The overall appearance is white, presenting a delicate watercolor style display interface, which can better integrate with the style of home decoration.

This thermostat supports 85% of US home use.

Nest Thermostat E supports manual or mobile phone temperature setting and control of home devices. It can also be controlled by voice assistants such as Alexa and Google Assistant but does not support Apple’s HomeKit smart home system.

According to data released by Nest, Nest has so far saved users an average of 12% to 15% of heating and cooling costs each year, and has saved a total of 14 billion kWh of electricity. Nest ’s new goal is to save 100 billion kWh, which is enough to support the operation of the entire New York City power supply system for two years.

Honeywell Lyric T5

Support Siri to issue commands, touch panel, support mobile phone APP’s regional fence function, GPS determine the range of leaving / going home, and automatically change temperature.

Honeywell Lyric T5

Honeywell Lyric T5 is a temperature controller that can support a variety of smart home control systems, including Apple’s Homekit system. By sending instructions to Siri, you can easily adjust the temperature in the room, which will make you think that you are Iron Man Tony Stark!

Sensi Smart Thermostat

Sensi is also a fairly complete thermostat. It supports remote temperature control, custom 7-day temperature adjustment, temperature alarm, weather of the day, automatic configuration loading, power protection and safety lock.

Sensi Smart Thermostat

At the same time, Sensi itself is equipped with a low-key and backlit display, which can perform automatic conversion, fan control, indoor temperature and humidity detection, and start backup power.

Smart Thermostats buying guide

For homes, thermostats may control nearly 50% of energy consumption, so more energy-efficient smart thermostats are gradually gaining popularity. Of course, not all thermostats based on IoT technology are the best energy-saving choices, they should have at least the following five characteristics:

1. Location Service

The intelligent thermostat with location service can access the location information of the mobile phone to realize the automatic temperature adjustment function. For example, once you go out with your mobile phone, the thermostat will detect the change of your position, and then automatically turn off the air conditioner to achieve a better energy saving effect.

2. Energy consumption display

An intelligent thermostat that supports energy consumption display can better help you save energy. Usually such products will be equipped with LCD screen to display energy consumption status, if the operating efficiency is low, it will also sound or visual alarm, so that you can timely check air conditioning, gas pipes and other equipment to ensure good operation results.

3. Learning function

The reason why the Nest thermostat can attract Google’s attention is that it is equipped with learning and intelligent temperature adjustment functions. The thermostat will run according to the preset parameters in the first week, but it will gradually learn the user’s usage habits and combine the indoor temperature and other information to achieve a better automatic temperature adjustment function.

4. Price response

If you do n’t have a smart meter installed in your home, the price response function of the thermostat is necessary. This function can automatically adjust the operating power of the equipment at the peak of electricity consumption according to the staged electricity price system in some countries and regions to achieve the most cost-effective temperature control effect.

5. Speech recognition

Although the Apple HomeKit platform has not been officially launched yet, we can’t control various smart appliances through Siri, but some thermostats have built-in voice control functions, which can serve you better. Generally speaking, this type of thermostat supports several fixed voice recognition commands, such as “lower temperature”, etc., which can be more easily controlled.

Nest Learning Thermostat vs Ecobee 4: Which one is the best?

Smart shoppers compare the value of their products before paying for it. Nest Learning Thermostat and Ecobee 4 are two leading smart home thermostats that can help families maintain a comfortable temperature without continuous input. So, how to choose between the two? We decided to carefully compare the price, appearance, energy-saving and other factors.


Nest Learning Thermostat and Ecobee 4 are both initially priced at $ 249, but sometimes you can find discounts in different retail stores. Ecobee reduced the retail price of Ecobee 4 to $ 199 on its website. You can usually buy Nest Learning Thermostat on Amazon for about $ 215. If you buy two Nest thermostats at once, you can save $ 50 on the Nest website. However, because the current price of Ecobee 4 is only $ 199, it is better than Nest in terms of price.

Winner: Ecobee 4

Energy saving

One of the main reasons why many people choose smart thermostats is that they want to reduce utility bills. Although the two models mentioned here can help you achieve energy saving goals, the Nest method is more user-friendly.

When you adjust the temperature in an energy-saving manner, a leaf icon will appear on the thermostat. Use the Nest thermostat to heat and set it to 62 degrees or lower. There will always be a leaf icon. Use this gadget to cool the home and adjust the thermostat to 84 degrees or higher.

As Nest Learning Thermostat becomes more intelligent and understands family preferences over time, as long as you choose a temperature setting that saves energy based on preferences and habits, you will see a leaf icon on the display.

In addition to the leaf icon prompt, no more information is provided, but Nest’s support documentation shows that this feature will challenge people to set a higher or lower thermostat than usual. One adjustment can save up to 5% in electricity costs.

You may also want to know that Ecobee4 is just a hard-wired smart thermostat, and Nest Learning Thermostat can be powered by household electricity or batteries during a power outage.

If a person lives in a bad weather area that often causes power outages, then two power options may be more useful in Nest products. This extra option combined with its intelligent energy-saving features makes Nest a winner.

Winner: Nest Learning Thermostat


Both thermostats have a rounded shape. However, although the Nest Learning thermostat is perfectly round, the Ecobee4 is more square.

You can purchase Nest Learning Thermostat, including stainless steel, polished steel, black, mirror black, white, brass or copper. Nest Learning Thermostat also has a hyperopic function, which lights up when it sees you passing through the room.

Ecobee4 is black on the front and has blue stripes on the top. There are not so many colors for Nest to choose from.

Thermostat adjustment

Take a closer look at the details of each device. Although they look similar, there are subtle differences in how the temperature is adjusted.

The Nest device uses the dialing mechanism provided by the external ring. You can manually turn it to change the temperature. If you prefer the same temperature regulation technology as traditional thermostats, Nest Learning Thermostat is a good choice.

Ecobee4 uses a touch screen. For those who are used to using touch screens on smartphones, tablets, and household appliances (such as ovens), using Ecobee4 to adjust the temperature is a natural extension of these activities.

When people invest in Ecobee4, they can also buy wireless room sensors. These accessories can automatically detect occupancy and adjust room temperature. Each Ecobee4 is also equipped with a sensor.

You can also use the sensor to adjust the selected room to an average temperature, whether or not someone using Ecobee4 is present. Convenience is one of the main advantages of smart homes, and this smart thermostat is undoubtedly excellent in this regard.

About Nest Learning Thermostat, you can purchase Nest temperature sensor separately. They require you to specify the temperature required in the room at a specific time of the day, and then Nest responds to this input, making it a must-have accessory for large smart homes. Users can determine the priority of different rooms according to their needs. However, Nest’s technology does not have the use sensing function of Ecobee4.

Winner: Ecobee4

Compatibility with other household energy equipment

Both devices are connected to multiple energy devices for ease of use.

Ecobee4 can identify when there is ventilation equipment in the home and use cool outdoor temperature when appropriate to reduce dependence on home air conditioning. In homes equipped with dehumidifiers, Ecobee4 can adjust the indoor humidity to prevent frost in cold weather and high humidity indoor environments.

On the contrary, Nest provides a function, which is very effective for families with heat pumps and auxiliary heating. Known as heat pump balancing, it allows you to choose how much auxiliary heat to use, which is quite convenient because this heating option can be expensive.

Nest thermostats can also combine heat pump efficiency, current weather conditions, weather forecast data, and heat pump balance function activation, relying on data to determine the best auxiliary heat usage.

Winner: Draw

Voice assistant connection

Both Nest Learning Thermostat and Ecobee4 work with Google Assistant or Alexa, although the method is slightly different.

When using Amazon Alexa devices, individuals can control the Nest thermostat through the Alexa app or voice, which means you can let Alexa increase or decrease the temperature.

In contrast, Ecobee4 has built-in Alexa voice service. This means that it understands voice prompts like Alexa and has more functions than those related to room temperature. For example, a person can use Ecobee4 to listen to music, set a timer, etc., all of which can be done by using Alexa commands.

Nest Learning Thermostat and Ecobee4 are compatible with Google Home devices. You can say “Ok, adjust the temperature to 71 degrees” to adjust the Nest thermostat or Ecobee4 temperature. Similarly, you can also issue the command “Ok, Google, make my home warmer”.

People without Alexa speakers may want to choose Ecobee4, but people with Google Home devices will find that both thermostats are also available.

Final Results

Both thermostats provide a wealth of functions, and the price is the same. However, for most users, Ecobee4 is the better choice of the two. This is mainly due to the built-in Alexa function and the use detection function of the room sensor.

Regardless of our opinion, it is best to carefully weigh the advantages and disadvantages of any smart home device. Doing so can increase purchase satisfaction, not waste money, and obtain a comfortable living environment.

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