vine Programmable Thermostat for House with 4.3″ Touch Screen, WiFi Smart Home Thermostat for AC and Heating, App/Voice Control, Compatible with Alexa and Google Assistant, C-Wire Required, TJ-919T

Great value for product
Great product. Easy to setup. Compatible with all kinds of setups and heat sourcesWorks with C or USB-C 5v transformer.Great price for the product and highly vivid screen-biggest full display I was able to find.Drawbacks- must be a 2.4 GHz network for wifi setup-don’t get if you can’t specify frequency.Can’t set the lock pin- or haven’t figured it out although it seems a generic code to keep little kids out. Not your own code.App doesn’t show run state, just temp and humidity and heat/cold set points. So you can’t tell if it’s currently heating or cooling. You can set everything including schedule in the app.Fan refresh for circulate is its own schedule not based on your schedule and set separately but at least has a schedule.

Defective. Return window closed.
By the time it was installed and I realized it was defective, the Amazon return window had closed. Missed the return window by 1 day. Threw away $110.

Good thermometer at a decent price.
Not a bad priced thermostat that is smart assistant compatible. Haven’t had issues with it but probably not as durable or learning as a nest. Does have a pretty cool little night light that can be set to turn on and off at night.

My hopes were high, but I was disappointed in the end
I’m looking for a smart thermostat that integrates with my home automation system. I was really hopeful when I bought this one because it looked very promising in the listing photos. The reviews were fairly mixed and I’m happy to say I had zero WiFi connection issues with it.PROS:-the display is pretty awesome and provides all of the information you could want-it has an AUTO mode for heat/cool-it has FAN CIRCULATION mode which will run the fan on your hvac for X number of minutes per hour when enabled to circulate air in your home-the installation process was easy BUT you must use 2.4ghz WiFi. 5ghz will not work at all.-the app is very thorough and easy to use-I never had WiFi connection issues-it’s apple homekit compatible so it worked pretty well with my Home Assistant automation system-there are a few display customization options (which also falls under my cons category below)-price! I need two thermostats and this thing is priced rightCONS:-the display. Although this is the biggest PRO for it, it’s also the biggest CON. The thermostat screen is very bright. It has a dim mode and an off mode. Most people like me would want the stat bright (which shows all data) during the day, and dim (which dimly shows the current temp, setpoint, and time) or off (screen goes black) at night. Because let me tell you- when the screen is fully on, it lights up a dark room. Well, in the app there is a setting to enable “wallpaper” mode which I assume is my definition of dim above, but the time settings seem convoluted. I would want dim to start at 7pm and turn off at 8am. You can’t choose those times. It seems like the app programmer did them in reverse. No matter what I tried, I couldn’t get this thing to go dim when I wanted it to. Sometimes it would work, but usually not. So last night when I went to bed it was dim but I woke up at 11:30pm and it was full bright. Lit up then room. Quite annoying. A couple nights is was dim when I went to bed and then sometime in the night it went dark, which was nice, however the next day I waited until noon to finally touch the screen to wake it up because it stayed dark all day. Huh? I simply cannot figure this screen brightness thing out and I give up. I’ve read the manual. It’s hinges whatsoever. I read the FAQ on the manufacturers website, also no help. I would email them but no matter what it doesn’t work right. I have two engineering degrees and I’m extremely tech savvy.-the 2.4ghz WiFi thing is a pain. I have 2.4 and 5ghz both names the same. I had to shut off the 5ghz to get this thing to connect. It stayed reliably connected during my testing but others have complained it didn’t for them.-you MUST connect it to the manufacturers cloud. It’s free for now but they could always start trying to charge you for that. It cannot be used in WiFi without going through their server and that’s disappointing. I don’t need or want it connected to their cloud but there is no way to disable that. If you turn off internet access to it on your router then there is absolutely no way to control it with the app even on the same WiFi.That’s all I have to say. Unfortunately since the display brightness is not reliably controllable I had to move on to another brand. If the display was configurable to be dim at night then this would have been my first choice as a thermostat in my house.