Google Nest Thermostat
Google's affordable Nest is the straightforward upgrade for most homes: ENERGY STAR certified, with a clean display and a schedule you build in the Google Home app that turns itself down when you leave so you're not conditioning an empty house. Savings Finder suggests tweaks, and HVAC monitoring watches your system and flags issues plus maintenance reminders. Family members can adjust the temperature from a phone anywhere, and it works with Google Assistant and Matter-certified assistants. One thing to check first: it runs without a C wire in many homes, but heat-pump, zone-controlled, and heating- or cooling-only systems may need one — so run Google's compatibility checker before buying.
Heating & Cooling / Thermostats
ecobee Smart Thermostat Premium
This is the ecobee at its most complete: a vibrant touchscreen display in metal-sided glass, plus a bundled SmartSensor so the thermostat reads occupancy and comfort in another room rather than just the wall it's mounted on. ENERGY STAR certified, it claims up to 26% in annual heating and cooling savings versus holding a steady 72°F, and a built-in air-quality monitor flags poor air and furnace-filter changes. Compatible with 95% of systems, and the included Power Extender Kit handles C-wire-less homes for a genuine DIY install. Alexa or Siri is built in, so it doubles as a voice speaker—useful if you want it, ignorable if you don't.
Thermostats / Thermostats
Sensi Touch Smart Thermostat by Emerson
Emerson's Sensi Touch is the unflashy, reliable choice—the one installers tend to trust. A large full-color touchscreen keeps temperatures and menus easy to read, it comes in black, white, or silver, and it works with the HVAC equipment in most homes (a C-wire is required). ENERGY STAR certified, it's rated to save about 23% on HVAC energy through flexible scheduling, remote access, and usage reports. DIY install is helped by a built-in level, illuminated easy-click terminals, and app instructions. Two quieter strengths: Emerson states it won't sell your personal information, and smart maintenance alerts flag equipment issues and filter changes before they become problems. Substance over spectacle.
Thermostats / Thermostats
Emerson Sensi Wi-Fi Smart Thermostat
The Sensi is the sensible budget thermostat: it skips the touchscreen and color graphics and puts the money into what actually saves energy. ENERGY STAR certified, it leans on flexible scheduling, remote access, and usage reports to trim HVAC energy by about 23%. Installation is unusually DIY-friendly, with a built-in level, step-by-step app guidance, and no c-wire required in most homes, and because it fits the footprint of a traditional thermostat with real buttons, you won't be patching and painting the wall. It also nudges you with maintenance reminders like filter changes. Emerson's privacy stance is a bonus: it won't sell your personal information.