Some time ago, I posted my assessment of the best smart thermostat on the market. At the time, and without purchasing each one, I made a decision based on the best information I could find online at the time. It was difficult finding good information, but I read dozens of customer reviews and I put together a matrix of features I thought were the most important, ending in a purchase of the Ecobee3. Fast forward to the present, and I still believe I made the best pick. By now however, the Ecobee4 has been released, with the major new feature being Amazon Echo (Alexa) support. While the Ecobee3 and other thermostats can use Google Home or Amazon Echo as input devices, the new Ecobee4 has it built right in.
So, when I learned about this new review at Reviews.com, I was delighted to see that in their much more thorough review, the Ecobee was still king. The best part of this article addresses the issue with the 'C' wire. The 'C' wire seemed to elicit the most online discussion of any feature of the individual thermostats, and was one deciding factor in the article. If you are in the market for a money saving smart thermostat, do yourself a favor and read this article. I sure wish it had been published before I bought mine.