Customer reviews from resideo.com
Honeywell Home - T9 Smart Programmable Touch-Screen Wi-Fi Thermostat
Average customer rating
4.1 out of 5
4.1
(2,829 Reviews)
Open Ratings Snapshot
Rating breakdown 2,829 reviews
5 Stars
1,643
4 Stars
555
3 Stars
253
2 Stars
140
1 Star
238
81%of customers recommend this product. 
(
1,771 out of 2,180
)
Best Buy Privacy Policy
Customer Reviews for Honeywell Home - T9 Smart Programmable Touch-Screen Wi-Fi Thermostat
Customer Rating
5 out of 5
5
Blows the Competition Away: Smart & Simple Setup!
on October 23, 2025
Posted by: Ryan G
from Detroit, MI
Verified Purchase:Yes
I’ve had the T9 Smart Thermostat installed for a few months now, and it’s been a total game changer for our home. I used to have a competitor’s product, but this blows it out of the water in every way. The setup was effortless, it hooked right into my smart home ecosystem without a single hiccup, and the touchscreen display is absolutely beautiful. It feels modern, responsive, and way more intuitive than anything I’ve used before.
The installation was a breeze. Everything I needed came in the box, including the power adapter, and the T9 automatically identified my system type during setup. The auto home and away mode is brilliant, adjusting the temperature automatically using geofencing so we’re not wasting energy when we’re out.
I love being able to see monthly energy reports that show how we’re saving money, and connecting to my utility company through the Honeywell Home app even earned me seasonal rewards. It’s also great knowing I can expand with Smart Room Sensors later to fine-tune comfort by room.
The T9 works flawlessly with Alexa and Google Assistant, making voice control a breeze. Between the ease of setup, smart integrations, and stunning screen, this thermostat is on another level. Highly recommend, it’s the best upgrade I’ve made to my home in years.
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
1 out of 5
1
screen wouldn't stay dark
on October 24, 2025
Posted by: shann
from Massachusetts
Verified Purchase:Yes
i had one of these thermostats installed in my bedroom. i was unable to get the screen to stay dark. when the temperature changed, the screen would light up again. i tried the on-line help assistant, which was useless. i returned all 3 thermostats & bought something more user friendly. oh, and it was overpriced for what it could (and not) do.
No, I would not recommend this to a friend.
Written by a customer while visiting resideo.com
Customer Rating
4 out of 5
4
T9 Smart Thermostat
on October 24, 2025
Posted by: HUDson
from Chicago
Verified Purchase:Yes
I still learning the T9 thermostats had the Nest before very kid friendly. The T 9 is simple easy set up and programmable. I like it very much.
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
This works great! Small but mighty.
on October 27, 2025
Posted by: Anna F
from Maysville, NC
Verified Purchase:Yes
Informative and helpful. Installer had some difficulty but it is in!
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Very convenient
on October 27, 2025
Posted by: Dania
Verified Purchase:Yes
I love it. I sleep in a second floor and now I don't have to go down stairs to turn on the thermostat.
Written by a customer while visiting resideo.com
Customer Rating
1 out of 5
1
They don’t work
on October 28, 2025
Posted by: Paula C
from Hampton Roads, VA
Verified Purchase:Yes
It won’t connect and it won’t reset. Useless and expensive.
No, I would not recommend this to a friend.
Written by a customer while visiting resideo.com
Customer Rating
1 out of 5
1
Not good quality
on October 28, 2025
Posted by: Not so happy Customer
from South Carolina
Verified Purchase:Yes
External Sensor won't Connect, it will give internal fault. Firmware does not fix it
No, I would not recommend this to a friend.
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Honeywell T9 Smart Thermostat
on October 29, 2025
Posted by: AP98
from Seattle, WA
Verified Purchase:Yes
Easy to navigate and keeps schedule every week accurately.
I would recommend this to a friend!
Written by a customer while visiting resideo.com
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