
Merry Zerlaut
I've used this 3 years. It worked fine until recently. It wouldn't connect to my wi-fi anymore. (No wifi changes) Showed "change battery" & "reconnect" errors. I changed batteries, & errors remained. I uninstall/ reinstalled the program 3 times!! After the 3rd time, I progressed through the connect to wi-fi pages far enough to see that there is NO SECURITY for my thermostat when using wifi. The app works now, but I'm wondering if it's worth it w/o added security.
19 people found this review helpful

Island Bob
I just installed the Smart Touch ST75S. I found it very easy to mount, connect the wires, and power on! I thought it was a little strange that it only connects to 2.4GHz. Everything in my home is connected to 5GHz. It's a good thing that my router has both 2.4 and 5GHz. I gave it 4 stars for this reason! The overall setup is straightforward, and you must know what type of system you have. I have a one stage heat pump that required me to go into the "Advanced Set up" make the proper settings!
3 people found this review helpful

Lauren Torres
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The app constantly says Thermostat offline, even though it's connected. I have uninstalled the app, cleared cache and data, factory reset the thermostat. Sometimes that all help for a day or two but always comes back. If it's unreliable like that and I can't change it when I'm away, it defeats the purpose of buying it in the first place.
1 person found this review helpful