Works with Alexa for voice control,Languages:English,French,Spanish,Dutch Screen:24-bit color LCD,480 x 480 resolution at 229 pixel per inch (PPI),2.08 in (5.3 cm) diameter Compatibility: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,Heating: 1,2, and 3 stages (W1, W2, W3),Cooling: 1 and 2 stages (Y1, Y2)Heat pump: with auxiliary and emergency heat (O/B, AUX, E),Humidifier or dehumidifier (HUM, DEHUM),Fan (G),Power (C, RH, RC) Wireless:Wi-Fi 802.11b/g/n @ 2.4GHz, 5GHz,802.15.4 @ 2.4GHz,Bluetooth Low Energy (BLE) Remote control requirements:Wi-Fi connection with Internet access,Nest app on phone or tablet with iOS 8 or later, or Android 4 or later,Latest version of Safari, Chrome, Firefox or Internet Explorer on Mac OS X v10.9 or later and Windows 7 or later › See more product details