Latest and greatest thermostats? No cloud preferable. We all saw what happened with nest

Hardware
2

This is what Im using. Found one locally NIB for ~$40!

https://www.amazon.com/GoControl-Thermostat-Z-Wave-Battery-Powered-Works/dp/B00ZIRV40K/ref=asc_df_B00ZIRV40K/?tag=hyprod-20&linkCode=df0&hvadid=241901362930&hvpos=1o1&hvnetw=g&hvrand=11823308871317676007&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021515&hvtargid=pla-437321532435&psc=1

With zwave check if you have a C wire providing power to the thermostat. The interface with HA on battery wasn’t to my liking. If you have a modern furnace check if it supports a c-wire hookup. Mine did and just wasn’t used, a quick wiring adjustment and I had power to my thermostat.