Search query: wireless thermostat without c wire

Product: Bosch Thermotechnology BCC50 Wi-Fi Thermostat-Works with Alexa and Google Assistant, All-in-One, Touch Screen, Safety Control, Smart Home, White CONNECTIVITY: Connect to your HVAC equipment from anywhere
AUTO-ON SAFETY CONTROL: Keep your home safe using app alerts & auto-on feature
SLEEK DESIGN WITH TOUCH BUTTONS: Sleek design that will look great in your home, with 5 bright illuminated touch buttons & color screen
HVAC FILTER REMINDER: Get alerts when its time to replace your system's air filter
PROGRAMMABLE: Follows up to 4 preset or user-defined schedules to help you save energy and money Bosch Thermotechnology White

Product: ecobee4 Smart Thermostat with Built-in Alexa, Room Sensor Included Room sensor manages hot or cold spots Detects room occupancy for optimal comfort Built-in Amazon Alexa Voice Service Far-field voice recognition across the room Free ecobee Android and iOS mobile app Set events, receive service alerts and reminders Room sensor manages hot or cold spots
Detects room occupancy for optimal comfort
Built-in Amazon Alexa Voice Service
Far-field voice recognition across the room
Free ecobee Android and iOS mobile app ecobee Black

Product: Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable
The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory
Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home
Programmable thermostat that lets you create an energy efficient schedule in the Google Home app on your Android or iPhone
Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1] Google Snow