Love this thermostat! The look is sleek and stylish and it is very easy to use once you know what to do. Read for help on instructions"¦
1) For iPhone, when you are connecting it to WiFi and to your phone-make sure you allow it to access the local network or it will never connect. Your phone will initially ask you but if you accidentally deny it (like I did) you go to Settings>Privacy>Local Network>Click on for Bosch. Not sure how it works for Android but I'm sure there's something similar.
2)Make sure you are NOT on 5G wi-fi. Use 2.4 (or regular) or google how to not use 5G. My internet service provides both so it was easy for me.
4) Installation was easy. See pictures for my old t-stat wiring and how it's wired to this t-stat.
3) Follow the pictures in this review to make sure it is configured to your type of unit. If you don't know then call someone who can figure it out OR google how to figure it out on your own. When I initially installed this t-stat, it was blowing cold air on the heat setting and cool setting. (Both worked fine with old t-stat so I knew my unit wasn't the issue.) Once I had googled enough to figure out where to look and what to do (there aren't many forums for this or Bosch in general so it wasn't easy to find which is why I'm giving this review) I got into the advanced settings and figured out that the t-stat defaulted to a dual fuel 1/1 stage unit which is not what I have. Once I changed that to an electric 1/1 unit everything is working perfectly. Follow pictures for the needed codes to check this. This is also where you add function for humidifier/dehumidifier units.

Bosch should have definitely put some of this info in their instructions or troubleshooting so shame on them, but I hope this helps someone!! It really is a good t-stat and I just love the look as I'm currently remodeling the entire house. Now, if I didn't have to drag out the 5 gallon bucket of paint and touch up the wall from the shape of the old t-stat, my HVAC life would be perfect!!

My expectations were low on this product, given the mixed product reviews it received. Once installed, it was easy to set up. As with all things wifi related, you have to be a little bit patient. I installed one of these and the one that is further from the router was not getting consistent signal, so, I moved the router a bit and it works seamlessly. I like this as opposed to the Nest because Bosch is not part of a huge tech company collecting all of my data and the unit looks more residential than the Nest.

I am giving it 5 stars with some caveats. I own a nest also and I found this to be much more complex to install and set up. But, after setting it up I really like how this works and the app is fast and easy to use. The tricks with setup were #1 the wires have to go in the side and no super mini screw driver included. I had a heck of a time connecting wires. #2 it does require a C wire. I didn't have one, but I had a hook up on my heater so I wired in a C and it was fine. #3 When it came to wifi setup it was tough because I have 2 networks and both are 5ghz self choosing. So I had to disable both networks, hotspot my phone with an exact same name network, connect, disable the hotspot and then it connected. If that seems overwhelming- it kind of is. At least it took a minute and a second device with app also.

This controller has most lacking feature on some of other well named models. I needed a controller that I can have more than 4 schedules per day. You can have up to 8 schedules a day for each day if you want (meaning you can have it change the temperature 8 times a day). You can also have 5 different preset schedules. Once you set the schedule you can easily copy that schedule to other days of the week. It has auto change over from heat to cold, or you can choose only heat or only cold. Fan can be on Auto, always On or on schedule. It has Accessory option such as humidifier or dehumidifier in advanced settings. To access advanced settings you need Professional Access Code which I have not needed for now.

I had an issue with pesky message staying on my App with an update even after I had updated it. I wrote to their support and they took care of that right away.

Installation was simple and easy. Interface is colorful and beautiful. One thing missing that I wish for is the ability to see past usage like in Nest thermostats.

Most of the bad reviews I saw for this product were regarding connectivity to wifi. I even called tech support and they said proximity was a known issue and there wasn't anything they can do. The manual specifies the unit needs to be connected to a 2.4Ghz signal (many routers are dual band with 2.4 and 5Ghz). Once I selected the correct signal it has worked great. The signal travels through 3 walls from my router without any issues. I did the initial set up next to my router using a mini usb cable for power then moved it to it's home on the wall.