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
(2,934 Reviews)
Open Ratings Snapshot
Rating breakdown 2,934 reviews
5 Stars
1,698
4 Stars
569
3 Stars
271
2 Stars
153
1 Star
243
81%of customers recommend this product. 
(
1,831 out of 2,267
)
Best Buy Privacy Policy
Customer Reviews for Honeywell Home - T9 Smart Programmable Touch-Screen Wi-Fi Thermostat
Customer Rating
4 out of 5
4
Nice, but interface and app could be better
on June 7, 2026
Posted by: B - rad
from Fort Mill, SC
Verified Purchase:Yes
Nice clean look, but interface isn’t always intuitive and the app isn’t particularly easy to use.
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
2 out of 5
2
System overshoots
on May 27, 2026
Posted by: Bobo Man
Verified Purchase:Yes
Very disappointed in the T9. Mine has no ability to change the cycle rate, but online posts say some do and some do not have this. I wanted the device to control a specific room at night so I bought remote sensors, but there is a huge time lag. For example when heating if it is 68 degrees and I change it to say 72 it will overshoot to 76 with no ability to change the cycle rate.
No, I would not recommend this to a friend.
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Garage heater
on May 26, 2026
Posted by: Anonymous
from Barron, Wisconsin
Verified Purchase:Yes
I love this thermostat! I am able to control every aspect of it from my phone. If I'm at work and decide I want it warm in the garage when I get home. I just push a few buttons on my phone. Great product!
Written by a customer while visiting resideo.com
Customer Rating
3 out of 5
3
First Alert app info not going to Ring app
on May 19, 2026
Posted by: Dale *
from Fort Myers, FL
Verified Purchase:Yes
Integration issues with differences between Residio app and First Alert app. Can send info from old Resideo app to Ring to monitor but not from First Alert app.
Written by a customer while visiting resideo.com
Customer Rating
2 out of 5
2
Stat too bright at night
on May 17, 2026
Posted by: Bpall
from Florida
Verified Purchase:Yes
Having the t-stat in the bedroom the lit backscreen can be too bright at night it would be great to shut the light off !
No, I would not recommend this to a friend.
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Excellent Thermostat
on May 17, 2026
Posted by: ARag
Verified Purchase:Yes
I really like the convenience of this thermostat. Highly recommend
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
A Step Up
on May 1, 2026
Posted by: Anonymous
from Frankford, DE
Verified Purchase:Yes
Nice design and I especially like that you can add remote sensors to balance out heating and cooling. Works great!
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Easy for old folks
on May 1, 2026
Posted by: D Hayes
Verified Purchase:Yes
Easy to operate. Nice to be able to do from my phone. We like it!
I would recommend this to a friend!
Written by a customer while visiting resideo.com
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