Honeywell Home T9 Smart Thermostat

Honeywell

Honeywell Home T9 Smart Thermostat

C

Ranked #7 in Smart Thermostats

465 LP on the category ladder what's LP?

The T9 offers excellent HVAC compatibility and a solid price-to-performance ratio. It has a 2-year warranty, firmware updates have been regular for the past year, and support is generally reliable.

Consolidated from 48 cited sources across 39 outlets

Where the cited sources landed, as we read them

2 glowing sources
1 enthusiastic source
39 positive sources
4 mixed sources
1 unconvinced source

See the sources

Pros & cons

✓ Excellent HVAC compatibility
✓ Solid price-to-performance
✓ Room-sensor network
✓ Strong Wi-Fi connectivity
✓ Clear display

The sources behind this ranking

We searched the web and YouTube for what has been published about this product, then read the articles, video transcripts and comments we found.

Evidence 18 articles, 28 video reviews and 2 community sources

2 glowing sources

FOCUSED INSIGHT Focused Insight Editorial Team · reviewer · Jul 2026

The T9 on the hallway wall reads 71, exactly what you set it to. Down the hall, your kid is kicking the blanket off because that bedroom is sitting closer to 75. Nobody touched the thermostat. Nothing broke. The number on the screen is correct. The room is still wrong.

Emergency plumbing, plumber near me, service, HVAC, IL Emergency Plumbing · reviewer

But with three popular options— Google Nest , ecobee , and Honeywell Home T9 —the “best” choice depends on your home layout, preferred app experience, and which smart-home platforms you already use.

1 enthusiastic source

Thermo Facts Thermoguru · reviewer · Jul 2026

With the T9, they launched a direct competitor focused on one specific pain point: temperature balance across rooms. Does the T9’s multi-room sensor technology finally solve the freezing bedroom and boiling living room problem? We put it to the test for six weeks across three different home types.

39 positive sources

Consumer Reports Daniel Wroclawski · reviewer · Dec 2019

The sleek Honeywell Home T9 Smart Thermostat holds up Honeywell’s impressive standards for manual operation and also scores near the top of the heap for automating heating and cooling. This thermostat comes with a wireless remote temperature sensor for more precise heating and cooling throughout your home and offers a number of other features, including geofencing, a built-in occupancy sensor, a touchscreen, vacation scheduling, and voice and app control via Amazon Alexa, Apple Home, Google Home, and Samsung SmartThings. Additional temperature sensors cost around $40 each or $75 for a two-pack, and they’re available at Amazon , Best Buy , and Honeywell Home .

Mr. Build It Mr. Build It · 1M subscribers · Jun 2019

Why Honeywell Home T9 Smart Thermostat is BETTER!

HVAC Site - Professional HVAC Contractors Forum Article · May 2026

Besides the track record, the T9 and T10 are easy to run, simple to program, offer Geo-fencing with multiple smart devices. If you have multiple sensors, you can control your system and program it to read which sensors at which times. I have it ontol temp at night by only the sensors in the bedrooms. In the day time, only the living space. Recently I needed to control more than one facility. Honewell does this flawlessly. I. can choose wwhich facility and then it gives the list of all thermostats in that facility. Soimple yet powerful.

Andru Edwards Andru Edwards · 666K subscribers · Jun 2019

If you're looking to add a smart thermostat to your smart home, and want to keep track of the temperature in multiple rooms, then the Honeywell Home T9 is one to watch. Through the use of smart room sensors, the T9 smart thermostat provides whole home coverage that keeps the temperature comfortable, no matter where you are in your home.

Popular Mechanics Tom Price · reviewer · Sept 2024

The Honeywell T9 is a great choice if your primary concern is reducing energy use and lowering your bills. You need to pair it with one of Honeywell’s smart room sensors to take advantage of the thermostat’s full functionality, which is an extra hurdle, but the sensor only costs about $30, so it’s a short one.

Kite Army Kite Army · 93.3K subscribers · May 2019

This is the best smart thermostat that I have ever reviewed. CHECK IT OUT!

Mysa Michael Hansford · reviewer · Nov 2025

This model is great for households with multiple rooms with varying comfort needs. You get more control through room sensors that track temperature and occupancy throughout the home. This way, you can prioritize rooms that are actively used and avoid wasting energy elsewhere.

Hey Delphi Hey Delphi · 85K subscribers · May 2023

A Best Buy with Proper Comparision and 1 Smart Sensor, Go Room Honeywell with Smart Touchscreen Display, WiFi Alexa Home Thermostat T9 Amazon.com product Buy quality.

AuthenTech - Ben Schmanke AuthenTech - Ben Schmanke · channel

With wireless remote room sensors, balanced temperature that brings comfort to your home, app control, scheduling and geo-fencing, integration w/ Amazon Alexa, Google Assistant, IFTTT, Samsung SmartThings, all at a competitive affordable price point, check it out!

HouseSmartsTV HouseSmartsTV · 33.1K subscribers · Dec 2024

Lou helps you take your home's comfort to the next level with the Honeywell Home T9 Smart Thermostat. Honeywell Home's T9 Thermostat lets you focus on the rooms of your choosing by adding Smart Room Sensors and setting a schedule that works for YOU!

Mattioni Plumbing, Heating & Cooling, Inc. Article · Mar 2025

Overall, the Honeywell Home T9 Smart Thermostat stands out as a great option for family households that are looking to cut costs where possible without sacrificing comfort . It’s perfect for managing several rooms as their occupants come and go throughout the day.

Happy Life Happy Life · 5.6K subscribers · Jul 2022

Extremely easy to install, works with combined 2.4 and 5Ghz wifi networks with simple trick.

LCS Heating and Cooling LCS Heating and Cooling · reviewer · Jun 2026

For Fishers homeowners seeking a comprehensive, intelligent solution that can adapt to their family's needs and help them save on energy bills, the Honeywell Home T9 Smart Thermostat is a top-tier contender.

Suggest 360 Suggest 360 · 5.1K subscribers · Jun 2021

Everything you need is included in the package, including a power adaptor that allows the T9 to be used in almost any household. The T9 simply determines the kind of heating and cooling system in your house, making it simple to instal on your own.

Thermo Facts Thermoguru · reviewer · Jul 2026

If resetting isn’t solving your problems, the T9 is the benchmark Honeywell upgrade: remote SmartRoom sensors, geofencing, two-stage HVAC support, and a clean setup experience via the Honeywell Home app.

Comparative Reviews Comparative Reviews · 4.9K subscribers · Apr 2024

The Honeywell T9 WiFi Thermostat has received a high review score of 4.4, indicating customer satisfaction and reliability of the product.

Sylvane Emma Beguhn · reviewer · Oct 2025

The Honeywell Home T9 Wi-Fi Smart Thermostat is an excellent choice for anyone looking for the best Wi-Fi-connected thermostat for home comfort.

CurrentProductReviews CurrentProductReviews · 4K subscribers · Dec 2024

The Honeywell T9 Thermostat, paired with its smart room sensors, provides unparalleled convenience by allowing you to adjust temperatures remotely, ensuring comfort in key areas of your home.

Costs, Info & Choosing Article

Its strong compatibility and straightforward app controls make it one of Honeywell’s most practical and popular smart thermostat options.

CurrentProductReviews CurrentProductReviews · 4K subscribers · Dec 2024

Installation is straightforward with the included wall plate and electrical box adaptor, making it a great choice for both new and replacement installations.

Popular Mechanics BlueQuill · reviewer · Nov 2019

Still, we give it a thumbs-up for its overall design and intuitive platform that makes it easy to get up and running.

CurrentProductReviews CurrentProductReviews · 4K subscribers · Aug 2025

The Honeywell T9 Smart Thermostat Bundle offers a versatile solution for managing home temperatures with its advanced Smart Room Sensors.

Bob Vila Tony Carrick, Jasmine Harding, Glenda Taylor, Paul Rankin · reviewer · Jan 2026

For larger homes or spaces with uneven temperatures, the T9 stands out as the best sensor-based option we’ve tested.

Happy Shop Happy Shop · 2.3K subscribers · Sept 2022

This is an excellent thermostat. I bought this one for our master bedroom because I had purchased another T9 a couple of years ago and it has worked flawlessly since. I love being able to control it with the Android app from my phone and it looks great on the wall - simple and functional. The hardware installation was very simple and connecting it to my home WiFi was also very easy. It's a great thermostat for the price.

Watch F Facebook Facebook post

[ Ben Thurston Commented in HVAC Techs Group Having used both, I’d recommend Honeywell over the ecobee.

RBL Reviews RBL Reviews · 775 subscribers · Apr 2026

The Honeywell Home T9 brings a powerful combination of automation, smart sensing, and user-friendly control. It is designed to learn your daily patterns while giving you full manual override whenever needed.

Awning Article · May 2026

Despite these minor issues, the T9 offers the best feature-to-price ratio for vacation rental hosts.

RBL Reviews RBL Reviews · 775 subscribers · May 2026

The T9 thermostat comes with several advanced features that make it stand out in the smart home category. Smart room sensors detect temperature and occupancy in multiple rooms for precise comfort control. Wi-Fi connectivity. Full remote access via mobile app for Android and iOS devices. Voice control compatible with Alexa and Google Assistant. Energy saving automation learns usage patterns to optimize heating and cooling schedules. Geo fencing technology adjusts temperature automatically when you leave or return home. Touchscreen display.

Current Overviews Current Overviews · 626 subscribers · Nov 2025

The T9 smart thermostat bundle by Honeywell is an excellent solution for maintaining comfort in multiple rooms thanks to its inclusion of smart room sensors.

Current Product Overviews Current Product Overviews · 609 subscribers · Nov 2025

Discover the advanced features of the Honeywell T9 WIFI Smart Thermostat, designed to enhance your home's energy efficiency effortlessly. With its cutting-edge geofencing technology, this smart thermostat automatically adjusts settings based on your location, optimizing both comfort and energy savings. Experience the convenience of multi-room focus by pairing it with optional smart room sensors, ensuring that the temperature is just right in every important room. The Honeywell T9 also boasts an intelligent learning feature, adapting to your home's unique heating and cooling patterns to deliver precise temperature control exactly when you need it. Compatible with a wide range of heating and cooling systems, this thermostat offers versatile compatibility for various household setups.

tech marlos tech marlos · 550 subscribers · Jun 2025

It's a full smart climate control system packed with features that actually learn how you live.

Pixel Review Pixel Review · 512 subscribers · Dec 2025

If you’re searching for an energy-efficient, sensor-based smart thermostat with touchscreen control, the Honeywell Smart Thermostat is a smart choice for comfort, convenience, and savings.

Pixel Review Pixel Review · 512 subscribers · Dec 2025

If you’re looking for a reliable, feature-rich smart thermostat with sensor support and touchscreen ease of use, this Honeywell model is a great choice for smarter, more efficient home climate control.

Rick Rick · 366 subscribers · May 2025

In this review, we dive into the Honeywell Home T9 Smart Thermostat, a top contender for 2025 that’s packed with features to keep your home cozy and energy-efficient. From smart room sensors to seamless app control, we’re breaking down everything you need to know to decide if this is the right pick for you!

Rick Rick · 366 subscribers · Aug 2025

We recommend the T9 for its value and performance. Click https://amzn.to/44CmT4y to support Rick’s Review Hub and score a great price!

Consumer Product Features Consumer Product Features · 292 subscribers · Nov 2025

This innovative device allows you to adjust your home's temperature effortlessly from virtually anywhere using your mobile device, making remote adjustment a breeze. Equipped with Smart Room Sensors, the T9 ensures room-specific comfort by maintaining your preferred temperature in selected areas, which can significantly enhance your comfort and sleep quality. With an impressive sensor range of up to two hundred feet, this thermostat is ideal for larger homes, providing effective climate management across multiple rooms. The T9's compatibility with major smart home platforms, including Amazon Alexa and Google Assistant, offers versatile control options, seamlessly integrating into your existing smart home setup.

BreeBuys BreeBuys · 81 subscribers · Sept 2025

We recommend the T9 for anyone wanting an efficient, comfortable home. It’s perfect for tech enthusiasts or homes with uneven temps. The features make it worth it.

TechDeals Digest TechDeals Digest · 34 subscribers · Feb 2026

Buy this amazing Thermostat at an unbeatable price

Plugged In Reviews Plugged In Reviews · 9 subscribers · Feb 2026

Performance is where this thermostat shines.

4 mixed sources

Gear Verdicts Aizaz Shahid · reviewer · Aug 2026

In my opinion, the device is rather a comfort-oriented gadget than a thermostat which is intended to make life hard for the homeowner with an array of features.

Smart Home Solver Smart Home Solver · 733K subscribers · May 2019

There are some really awesome things you can do with the new Honeywell T9 and its sensors to monitor different areas of your home. But each thermostat has its pros and cons, and we’ll go into the key details as we review the Honeywell T9.

Mysa Michael Hansford · reviewer · Jun 2026

The app can be a bit of a nightmare, with clunky navigation and important settings buried out of sight.

Graya Overload Graya Overload · 2.2K subscribers · Oct 2022

I have used the Honeywell T9 for a couple years and it has worked great. I am moving on from it for the items I feel that should have been added.

1 unconvinced source

Better Business Bureau Article

Despite following troubleshooting steps from Resideos support, the app fails to maintain a stable connection, making remote control impossible and negating the smart home features. The app demands constant access to my phones location (set to Always in permissions) for basic functions like adjusting the temperature. This is unnecessary, as I do not use geofencing features, and is a privacy overreach. When I disable location access, the app stops working. Privacy Concerns: The requirement for constant location tracking raises concerns. I have attempted to resolve these issues by [describe any steps, e.g., contacting Resideo support on [date] via phone/email, reinstalling the app, updating firmware], but the problems persist.

1 stance not read source

F Facebook John Terry · owner

I am looking at the Honeywell T9. I also need 2 HT. 1 Cl and there is a humidifier. Is this a good choice? Recommendations? TIA.

Frequently asked questions

It ranks #7 of 16 on our smart thermostats tier list, in C tier. That placement draws on 48 cited sources across 39 outlets.

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