Nest Learning Thermostat, 3rd Generation (Canadian Version) This Canadian-version Nest product is not certified for use in the USA Display Screen: 24-bit colour LCD, 480 x 480 resolution at 229 pixels per inch (PPI), 5.3 cm diameter Wi-Fi 802.11b/g/n at 2.4 GHz, 5 GHz, 802.15.4 at 2.4 GHz, Bluetooth Low Energy (BLE) Nest Leaf: You'll see the Leaf when you choose a temperature that saves energy. It guides you in the right direction The Nest Learning Thermostat works with 95% of 24V heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal