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
5 out of 5
5
Honeywell T9 thermostat
on April 20, 2026
Posted by: RERT
from North Carolina
Verified Purchase:Yes
Great thermostat very easy to install and reliable
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
I would consider this unit, 100%
on April 14, 2026
Posted by: Shaun O
from Idaho
Verified Purchase:Yes
I love this, I was told I couldn't use a new thermostat on my broiler, heated floors but this unit with the added wiring that you plug in used great and I have the main sensor in my master and it works so well
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Easy weather changes
on April 9, 2026
Posted by: PBRs
from Kingstree SC
Verified Purchase:Yes
So easy to program. Very easy to change programming with changes in local weather conditions.
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
4 out of 5
4
Mr.
on March 30, 2026
Posted by: Yuri_user
Verified Purchase:Yes
I am really satisfied with it. It is working so far
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Upgrade from old T5
on March 30, 2026
Posted by: RS111
from Cleveland,OH
Verified Purchase:Yes
I bought this to upgrade from T5, it actually plugged into the exact same connector that was wired up on the wall. So that made it super easy to swap out, no wiring changes at all. Then by adding 2 additional remote sensors I can now better maintain temperature across my entire house. I have 3 floors in my house and so the remote sensors help move the air more to maintain the entire house temperature. I also wanted the humidity numbers for the different rooms. While this thermostat is not controlling the humidifier it lets me keep an eye on it and then I can manually adjust the humidifier control in the winter if it’s getting too dry in the house.
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
Perfect room temp control
on March 28, 2026
Posted by: JTemme
Verified Purchase:Yes
I love my T9 thermostat. We have unusual airflow. Thermostat is in an upstairs hallway and master bedroom temp hard to control with standard thermostat. With the sensor in the bedroom temps are perfect.
Written by a customer while visiting resideo.com
Customer Rating
5 out of 5
5
It's on!
on March 28, 2026
Posted by: Missy T
Verified Purchase:Yes
Easy self installation. Easy app. Easy programming. Love having the extra sensor in the bedroom to maintain consistency of temp on both floors.
I would recommend this to a friend!
Written by a customer while visiting resideo.com
Customer Rating
2 out of 5
2
Not impressed!
on March 22, 2026
Posted by: Joe Da Cop
from South Carolina
Verified Purchase:Yes
Not really impressed for the price. There is no way to take an average between the Thermostat and remote sensors. The actual temperature on the Thermostat is off by an actual three degrees, when checked with three different thermometers and their very own sensor temporarily placed next to it. When the thermostat reaches the set point it continues to run the equipment for another 45 minutes. And that was without the sensors even connected.
No, I would not recommend this to a friend.
Written by a customer while visiting resideo.com
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