Honeywell Lyric - think Nest's infamous Learning Thermostat, but smarter
ecobee - The smarter wi-fi thermostat
Netatmo - Control your heating wherever you are
Nest Thermostat (3rd gen) - A slimmer, sharper, sexier thermostat
Zen Thermostat - Control the temperature of your home anytime, from anywhere
Tuya Smart - Tuya Smart is a free to use Lifestyle Application by Tuya Inc.