6 Best Wifi Thermostats of 2019

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Would you like to be able to come to a warm home even if you forgot to set a thermostat schedule? Wouldn’t it be nice to have complete control over all your climate control expenses, save money, and still never be too hot or too cold? It might sound like a pipe dream, but all it takes to make it a reality is replacing your old thermostat with one that can wirelessly connect to the internet.

Wi-Fi thermostats connect to your home network and through it to your smartphone or tablet. This means you can view and adjust the temperature in real time, set up schedules remotely, and browse expense reports wherever you are. They’re better to have than thermostats which connect through Z-wave since no hub is needed to control them. Wi-Fi thermostats are also smart – they can be controlled by AI assistants and become part of your home automation routines.

We’ve put together a list of the best Wi-Fi thermostats on the market. They vary in price and capabilities since some of them come with accessories like external sensors while others are meant to control simpler HVAC setups or single air conditioners. Choose the thermostat that fits your needs and your home’s specifications to start saving today!

Budget
best-budget-wifi-thermostat
iDevices IDEV0005AND5
3.8/5.0
Controls: HVAC
Comes with external sensors: No
Has a well-designed app with in-depth scheduling options.
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Best Value
best-value-wifi-thermostat
Nest Learning Thermostat 3rd Generation
4.8/5.0
Controls: HVAC
Comes with external sensors: Yes
Fantastic design and works well with other Nest products.
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Top Pick
top-value-wifi-thermostat
Ecobee4
4.9/5.0
Controls: HVAC
Comes with external sensors: Yes
Comprehensive installation support and excellent companion app.
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Wifi Thermostats Comparison Table

Make and ModelRatingControlsWorks withComes with external sensorsPrice
Ecobee44.9HVACAmazon Alexa, Apple HomeKit, Google Home, SmartThings, IFTTTYesCheck Price
Nest Learning Thermostat 3rd Generation4.8HVACAmazon Alexa, Google Home, IFTTT, other Nest products, WinkYesCheck Price
Honeywell Home T94.6HVACAmazon Alexa, Microsoft Cortana, Google Home, SmartThings, IFTTTYesCheck Price
Mysa Smart Thermostat for Electric Baseboard Heaters4.4High voltage heatersAmazon Alexa, Apple HomeKit, Google Home, IFTTTNoCheck Price
Sensibo Sky Smart Air Conditioner Controller4.2Air conditionersAmazon Alexa, Google Home, IFTTTNoCheck Price
iDevices IDEV0005AND5 Smart Thermostat3.8HVACAmazon Alexa, Apple HomeKit, Google Home, IFTTTNoCheck Price

1. Best Overall – Ecobee4

Ecobee4View on Amazon

Editor’s Rating: 4.9/5

A thermostat which will save you money, easily connects to other smart devices, and even comes with Alexa? Yes, the ecobee4 is that versatile. These might be its most compelling features, but they barely scratch the surface of what this Wi-Fi thermostat can do. It also has geofencing, intelligent temperature control based on weather, and can keep only parts of the house toasty with Follow Me mode. While the upfront cost might seem substantial, the Ecobee4 will pay for itself in no time.

Overview of Features

Ecobee’s design fits perfectly into an automated home. It is a rounded rectangle with an intuitive touchscreen and an elegant trim plate which hides any signs of previous thermostats or installation work. Speaking of which, installing the thermostat is straightforward since it is accompanied by an in-depth manual. You can even hook it up to systems without a C-wire thanks to a power extension kit.

You get two sensors along with the base unit, so there are three sensors to place strategically around your home. Ecobee takes readings from all three and averages them out, providing an optimum experience for the entire house. Alternately, you can set it to Follow Me mode. This mode takes room occupancy into account and adjusts the HVAC system so that only occupied rooms are kept temperate. Combined with a dedicated energy saving mode and geofencing, this makes Ecobee4 one of the most energy-efficient thermostats out there.

There’s a wealth of options to tinker with, but they’re easy to access from either the touchscreen or the excellent Ecobee app. You can use the touchscreen to set the desired temperature, adjust schedules, check the weather forecast, toggle between Home and Away modes, or set Alexa’s volume. The app’s visual style is identical but features more options. These include the ability to let the thermostat adjust the temperature based on outside weather, temperature settings for Home & Away modes, and a breakdown of energy savings that helps you plan ahead and save money.

Apart from being a fantastic thermostat, the Ecobee4 excels as a connected smart device. It is compatible with all major AI assistants as well as SmartThings and IFTTT. This lets you integrate it into your smart home routines and lower the temperature when a motion sensor is triggered, make opening a smart lock the cue to switch to a comfortable temperature, and much more. The thermostat has Amazon Alexa already built in and can control other smart devices with voice commands or act as a connected Bluetooth speaker.

What We Didn’t Like

The thermostat’s Wi-Fi connection is unstable and is prone to disconnecting. The integrated Alexa speaker doesn’t have all the features you’d find in an Amazon Echo, and Alexa has trouble understanding commands.

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Tech Specs
Dimensions: 4.2 x 4.2 x 1 in.
Humidity detection: Yes
Touchscreen: Yes
Shows outside temperature & weather: Yes
Controls: Whole-house HVAC
Compatible with: Amazon Alexa, Apple HomeKit, Google Home, SmartThings, IFTTT
Remote sensor support: Yes
Geofencing: Yes
The Pros
Versatile scheduling options
Comprehensive installation support
Excellent companion app
Connects to broad range of smart devices
The Cons
Frequent connection issues
Alexa is a downgrade from the original

2. Best Value – Nest Learning Thermostat 3rd Generation

Nest Learning Thermostat 3rd GenerationView on Amazon

Editor’s Rating: 4.8/5

Nest’s rivalry with Ecobee has driven both companies to create better and smarter thermostats with each update. Even though Ecobee is currently in the lead, Nest’s 3rd-gen Learning Thermostat doesn’t fall behind, especially now that it comes with an external sensor of its own. The learning feature, intelligent screen display, and ease of use are all great reasons to pick the Nest. You can buy a 3-pack of sensors for less than $100 if one isn’t enough, which adds even more value to the already feature-rich and fairly-priced thermostat.

Overview of Features

Nest’s thermostat s hands down the best-designed model on the market. Its puck shape adds a futuristic look while four varieties of finish ensure it will fit in with its surroundings. Even more impressive are the intuitive controls. Nest doesn’t have a touchscreen. It can be rotated and pressed inwards instead for intuitive navigation. Farsight is another cool feature introduced with the 3rd generation. It picks up on your movement from 20 feet away and activates the display to show either the current temperature & humidity or a clock when you pass by.

Learning is what distinguishes Nest’s from other thermostats. It observes how you adjust the temperature during different times of day and comes up with an optimal schedule after a week of use. You can let Nest handle temperature schedules automatically, but it can also follow a schedule you set and tweak it based on your preferences.

The thermostat features several ways of maximizing energy efficiency. There’s a light sensor which detects when the thermostat is exposed to sunlight and adjusts the temperature to save money. If your home is heated by radiators, you can switch on True Radiant and Nest will turn the heat on in time to warm the house up before you get home and turn it off before the target temperature is exceeded.

The addition of sensor support has expanded the Nest’s functionality by adding individual temperature control for different rooms. Each sensor tells the temperature and is powered by a coin cell battery that lasts two years. While Nest’s sensors don’t detect occupancy, a separate schedule can be set up for each. Six sensors are supported, and you can make any of them the default at any time to control the HVAC system based on its readings.

Nest’s app is the command center for all Nest products and lets you connect the thermostat to the company’s smoke alarms, security cameras, and alarm systems. These work together to enhance comfort and security. For example, a triggered Nest smoke alarm will display a warning message on the thermostat’s screen and automatically shut off ventilation to slow the fire’s progress. Connecting with non-Nest smart gadgets works through IFTTT. Voice commands are supported through Alexa,

What’s Bad About It?

The thermostat’s built-in temperature sensor isn’t accurate. The temperature it displays is 2-3 degrees off, which isn’t a problem until it approaches a threshold and fires up the heating or AC even though it wasn’t supposed to yet. Nest gives you a 2-year limited warranty. This is both shorter than Ecobee’s and not always honored.

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Tech Specs
Dimensions: 3.3 x 1.2 x 3.3 in.
Humidity detection: Thermostat only
Touchscreen: No
Shows outside temperature & weather: Yes
Controls: Whole-house HVAC
Compatible with: Amazon Alexa, Google Home, IFTTT, other Nest products, Wink
Remote sensor support: Yes
Geofencing: Yes
The Pros
Excellent value for the money
Adjusts to your habits
Fantastic design
Works well with other Nest products
The Cons
Inaccurate internal sensor
Short warranty period

3. Honeywell Home T9

Honeywell Home T9View on Amazon

Editor’s Rating: 4.6/5

The T9 is Honeywell’s newest entry in the smart thermostat market and an upgrade to the excellent Honeywell Lyric T5. It follows in the footsteps of Nest and Ecobee since you’re getting a remote sensor with the thermostat which detects motion, humidity, and temperature. This lets you regulate the temperature on a room-by-room basis and keep everyone comfortable while also enjoying lower power bills. The T9 is reasonably priced, easy to operate, and a great alternative to the giants of the industry.

Overview of Features

The T9 has seen a major visual upgrade from older Honeywell models. It is now a white rectangle with a simple and bright touchscreen. The screen shows the current and target temperatures and is big enough to be seen from across the room. During installation, it displays step-by-step instructions to make the process easier. Once installed and paired, it lets you change the temperature and switch from manual to automatic temperature control.

The best improvement to the T9 is its external sensor. It has a range of 200 feet so it can be mounted in large homes and still work reliably. Additional sensors cost $40, and 20 of them can report on a room’s temperature and humidity. You get to label each sensor for ease of access and control them individually from either the touchscreen or the app. The sensors also act as motion detectors. When motion detection is on, the T9 switches to Auto mode and keeps occupied rooms temperate while diverting the HVAC away from empty ones.

The Lyric app has also been upgraded and renamed to Honeywell Home. The new app brings upgrades to both its visual interface and areas that were lacking before like geofencing. More importantly, it brings all Honeywell devices like thermostats, cameras, fans, etc. together and lets you control them from a single dashboard. Thermostat-specific controls include temperature adjustment, geofencing, and schedules. You can set up individual schedules for each day or group them together for multiple days of the week. There’s also Vacation mode where you specify the exact dates when you’ll be gone and how the thermostat should act.

The T9 currently doesn’t support Apple HomeKit, but a compatibility update is in the works. It does support other notable smart home platforms like Alexa, Google assistant, and IFTTT. Voice commands are particularly useful. Asking Alexa, Cortana, or Google Assistant to tell you the temperature or set it to X degrees works perfectly.

Are There Drawbacks?

The T9 has only been out for a couple of weeks, so growing pains are to be expected. Connecting to your Wi-Fi for the first time is its biggest issue. This takes multiple tries and may make the otherwise straightforward installation last for hours. Some Honeywell products like the Lyric Alarm System aren’t integrated into the Honeywell Home app yet either.

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Tech Specs
Dimensions: 3.7 x 4.9 x 0.9 in.
Humidity detection: Yes
Touchscreen: Yes
Shows outside temperature & weather: No
Controls: Whole-house HVAC
Compatible with: Amazon Alexa, Microsoft Cortana, Google Home, SmartThings, IFTTT
Remote sensor support: Yes
Geofencing: Yes
The Pros
Large display
Additional sensors are affordable and expand usability
Straightforward app that controls family of Honeywell devices
Diverse, growing support for smart home platforms
The Cons
Has trouble with initial Wi-Fi connection
Needs more software updates to reach its full potential

4. Mysa Smart Thermostat for Electric Baseboard Heaters

Mysa Smart Thermostat for Electric Baseboard HeatersView on Amazon

Editor’s Rating: 4.4/5

The Wi-Fi thermostats reviewed so far are great for people with HVAC systems, but what if you have baseboard or fan-forced heaters? Mysa’s smart thermostat can control any high voltage heater with precision. Operating the thermostat is child’s play, yet you can also use advanced settings like scheduling or zoning. There are a few high voltage thermostats on the market, but none are as accessible or reliable as this one.

Overview of Features

Mysa’s design takes minimalism to a new level. The thermostat has a large rectangular face plate with LEDs that light up the temperature set keys and a central display. The display shows the current temperature which can be adjusted by pressing on either arrow. The thermostat is noticeably bigger than ordinary ones. This is because room needed to be made for a large heat sink which dissipates the heat created by its integrated circuit.

Installing the thermostat involves turning the power off, disconnecting the old one, and connecting a few color-coded wires. You should have no trouble with the installation if you’ve done electrical work before. Once that’s done, you need to download the Mysa app and pair the thermostat. You’ll also need to create an account since control data is stored on Mysa’s cloud.

The Mysa app follows the same sparse design as the thermostat but manages access to controls and options well. The dashboard lets you see the current temperature & humidity for all connected thermostats. Selecting one brings you to a screen that mimics the thermostat’s display where you get to set the temperature manually. Weekly scheduling is supported, as is a usage breakdown which shows when the thermostat was active and how much energy is used.

Instead of external sensors, you use multiple thermostats to control different heating zones. One zone can encompass the entire house or part of it controlled by one or more sensor. This is an expensive way to micromanage your heating, but an effective one.

What We Didn’t Like

Mysa’s thermostat lacks some of the features seen with other models, most notably – geofencing. It also doesn’t come with external sensors. It supports IFTTT on paper, but this is limited to only being able to set the target temperature.

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Tech Specs
Dimensions: 6 x 4.1 x 2.7 in.
Humidity detection: Yes
Touchscreen: Yes
Shows outside temperature & weather: No
Controls: High voltage heaters
Compatible with: Amazon Alexa, Apple HomeKit, Google Home, IFTTT
Remote sensor support: No
Geofencing: No
The Pros
Controls high voltage heaters
Minimalistic design
Straightforward app
Advanced zoning options
The Cons
Limited IFTTT support
No geofencing

5. Sensibo Sky Smart Air Conditioner Controller

Sensibo Sky Smart Air Conditioner ControllerView on Amazon

Editor’s Rating: 4.2/5

Do you live in a temperate climate where it gets scorching hot during summer? You might not need an HVAC system, but you could definitely use a smart, wireless way of controlling your air conditioner. Enter the Sensibo sky, a thermostat designed to control the AC through an intuitive mobile app. This model is by far the easiest thermostat in the guide to set up, has a unique programming mechanic, and doesn’t cost much to boot! It might be more niche than other reviewed thermostats, but Sensibo Sky is sure to find its audience.

Overview of Features

The Sensibo Sky is not much to look at – just a gray plastic box with a glowing Sensibo logo on top. The physical device is there to control the AC. You’ll need to consult the app to see temperatures, schedules, etc. On the bright side, installing the thermostat is as easy as plugging it in or inserting some batteries. Follow the in-app instructions on pairing the device with your 2.4 GHz Wi-Fi network, and you’re done!

The thermostat works as a substitute for your AC’s remote which is why it can’t control models that don’t have one. You need to point the remote towards the unit and hit the on button for it to recognize your AC. Sensibo Sky can recognize a wide variety of air conditioners by popular manufacturers, so this shouldn’t be a problem. Once identified, an AC can be controlled remotely or scheduled to work at certain times through the Sensibo app.

The design of the app compensates for the lack of a physical interface since it is laid out well and easy to grasp. The dashboard shows you the current temperature, gives access to the AC’s different operation modes as well as scheduling & geofencing options.

It’s possible to tweak the thermostat’s automated responses to specific condition through Climate React mode. First, you set the condition as either a temperature, humidity, or a combination of the two labeled “Feels like.” Then you decide how the AC should behave above and below that threshold. This works similarly to pairing the Sensibo Sky with a temperature or humidity sensor through IFTTT, which is also supported along with voice commands.

What’s Bad About It?

Not having any kind of indicator on the thermostat itself is inconvenient. You have to use your phone for every action, which can be annoying. While the thermostat works with any kind of air conditioner, it supports only one at a time, so it isn’t suitable for larger homes.

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Tech Specs
Dimensions: 3.2 x 2.2 x 0.7 in.
Humidity detection: Yes
Touchscreen: No
Shows outside temperature & weather: No
Controls: Air conditioners
Compatible with: Amazon Alexa, Google Home, IFTTT
Remote sensor support: No
Geofencing: Yes
The Pros
Adds scheduling and smart features to “dumb” air conditioners
Can be plugged in or run on batteries
Controls AC remotely via mobile or voice commands
Climate React mode
The Cons
No physical interface
Can control only one AC

6. Best Budget Option – iDevices IDEV0005AND5 Smart Thermostat

iDevices IDEV0005AND5 Smart ThermostatView on Amazon

Editor’s Rating: 3.8/5

The last thermostat on review is an inexpensive model made by iDevices, a company specializing in creating Apple-compatible smart products. This thermostat might not have all the bells & whistles the likes of Nest and Ecobee do, but it lets you control heating and cooling from anywhere thanks to a robust app that’s easy to navigate. This is the thermostat to get if you’re put off by more expensive options and don’t mind the lack of external sensors.

Overview of Features

The iDevices thermostat is the most traditional-looking model on review. It has a white faceplate with a 2-inch LED screen that shows the current temperature. There are four buttons in the corners that are used to increase or decrease the temperature, access a setting, and go back to the main screen. A C-wire is required for installation, and the thermostat supports single or two-stage HVAC systems as well as heating pumps. If you don’t have a C-wire, you’ll need to purchase an additional adapter. It costs less than $15 though, so even if you need it the total cost of the thermostat will come to just over $100!

While the thermostat’s physical interface is limited, the iDevices Connected app is anything but. It lets you see the humidity as well as current & target temperatures. There’s an intuitive scheduling wizard that asks you when you perform ordinary daily activities like waking up, eating and going to bed. You’re then asked what temperature you prefer for these activities, and an accurate automatic schedule is generated.

Of course, you also get to schedule working times manually on a weekly basis. There’s no geofencing option, but you can instruct the thermostat to pre-heat or pre-cool the house. This is done in 15-minute increments with a maximum of 90 minutes in advance.

In spite of its low price, the iDevices thermostat is compatible with Alexa, Siri, and the Google Assistant. It works best with HomeKit and can be integrated into its scenes to either trigger or be triggered by other devices.

Are There Drawbacks?

iDevices is an Apple-oriented company, and the iPhone version of the app works without issues. Android support was added more recently and suffers from hiccups in the form of connection troubles and unresponsive commands. You’ll need to visit the iDevices website before buying the thermostat and check whether your router is compatible. The thermostat will fail to connect if it isn’t.

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Tech Specs
Dimensions: 5.1 x 0.8 x 3.4 in.
Humidity detection: Yes
Touchscreen: No
Shows outside temperature & weather: No
Controls: Whole-house HVAC
Compatible with: Amazon Alexa, Google Home, IFTTT
Remote sensor support: No
Geofencing: No
The Pros
Affordable
Works with all major voice assistants and most smart devices
Well-designed app with in-depth scheduling options
The Cons
Buggy Android app
Works only with compatible routers
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