Nest Learning Thermostat T3 (3rd Gen, 2015)

Affordable ; Attractive design ; Works with Amazon Alexa and Google Assistant voice commands ; Supports scheduling and routines ; Lets you monitor your energy usage and suggests ways to cut back ; Warns you about potential HVAC issues

No touch screen ; Geofencing can be finicky ; Can't automatically set schedules

The relatively affordable entry-level Nest Thermostat lets you control your heating and cooling system by phone or voice, set temperature schedules, and offers energy-saving features that can help lower your bill.

Sleek design. Easy to install. Loaded with features. Interacts with other Nest and third-party devices. Support for Alexa, Google Home, and IFTTT.

Lacks remote room sensors. Pricey.

The third-generation Nest Learning Thermostat has all the smarts of its predecessors and adds some new features including a larger display, geofencing support, a furnace monitor, and a few more sensors.

•The best algorithms on the market •Excellent interface and easy set-up •Works with Nest program delivers a huge array of devices that it can interact with •The prettiest thermostat you can buy

•Too reliant on its built-in motion sensor (or your buying other Nest products) •Nest doesn't like geofencing, so it thinks you shouldn't either •Expensive for the performance it delivers

The Nest is, overall, the ideal smart thermostat for those who want to put minimal effort into controlling their heating and cooling system. At the same time, its top-notch interface allows for precise manual scheduling. The reliance on its motion...

Attractive industrial design, available in four colors ; Very easy to install, program, and use ; Monitors your HVAC system for potential problems ; Energy Star certified

No support for remote room sensors ; Not suited to more complex HVAC systems ; Backplate for covering holes from previous installations is a $15 option

If you want a great-looking, easy-to-use, affordable smart thermostat, the new Nest Thermostat is easy to recommend. It’s attractive, well built, and priced low enough that your local utility might even reimburse you for a big chunk of its...

Clean, simple aesthetics Wide-ranging compatibility, even with older systems Excellent voice assistant support Reliable automated temperature control

Lack of granular notification controls Initial training can result in some chilly/sweaty times until it gets a grip on your preferences

I think one of the best questions to ask a reviewer is always "would you buy it again?" In this case, the answer is an emphatic yes. In fact, I did buy it again when I purchased another Nest and another pair of temperature sensors for the other floor...

Large display ; Works with multiple smart home systems ; Intuitive Interface ; Easy to install

Can't monitor temperature in multiple rooms ; Doesn't work with Apple HomeKit

But that doesn't make the Nest any less compelling. For one thing, it's far more attractive, and it can learn your behavior and automatically adjust the temperature to suit your needs. That's pretty smart.

Nest's thermostat tracks your temperature preferences and schedule then programs itself accordingly.

The company’s two-year warranty is shorter than the industry average.

The Nest Learning Thermostat is an incredibly efficient, easy-to-use programmable thermostat. Its automatic scheduling feature is the most advanced we've seen, and it’s a valuable addition to any home.