Overview
This product is presented as the Amazon Smart Thermostat by Amazon, designed as a smart upgrade that helps reduce energy usage while controlling a 24V HVAC system. This product is marketed as working with Alexa and Ring, with control through the Alexa app and an option to control with the Ring app. This item is characterized as requiring a C-wire power or a power adapter kit (sold separately) to provide constant power for operation.
This item is presented as supporting automatic control where Alexa can switch between preferred home, away, and sleep temperatures, while still allowing manual adjustments. It is presented as enabling on-the-go temperature changes from anywhere with the Alexa app and voice control when paired with a compatible Alexa-enabled device.
Key takeaways
- It is characterized as compatible with most 24V HVAC systems such as conventional forced air, heat pump, and radiant boiler, and not compatible with 110–240V HVAC systems like electric baseboard heat.
- It is labeled as working on 2.4 GHz Wi-Fi networks with 2.4 GHz only, 802.11 b/g/n, and it is specified as not supporting 5GHz networks or ad-hoc (peer-to-peer) Wi-Fi.
- It is specified as offering app-based features in the Alexa app including indoor humidity sensing, schedules, emergency heat mode, vacation mode, energy saving incentives, and energy dashboard monitoring.
- It is described for use with guided installation in the Alexa app, and customer feedback commonly describes installation and setup as easy while also commonly describing mixed experiences with functionality and performance.
- It is intended for use on a single Alexa account, with household members sharing control through one account.
What the product is designed to do
This product is presented as a thermostat that can be used to adjust heating and cooling set points and manage temperature preferences through home, away, and sleep settings. This product is marketed as supporting comfort zones through select Echo devices or the Amazon Smart Air Quality Monitor, with automatic adjustment based on temperature readings or presence detection. This item is characterized as supporting Thermostat hunches in the Alexa app, where Alexa can adjust the thermostat if she has a hunch nobody is home or everyone is asleep.
This item is presented as allowing voice control through a compatible Alexa-enabled device and as allowing manual control in the Alexa app while away from home. It is presented as supporting “Choose Cleaner Energy” in the Alexa app device settings, where Alexa can adjust the set point to minimize usage when electricity is less clean, with the ability to manually override adjustments.
Materials, dimensions, and technical details
It is characterized as built with Honeywell Home Thermostat Technology and described as combining HVAC experience with Alexa. It is labeled as ENERGY STAR certified and specified as ECOLOGO Gold, with select replacement parts available for 3 years after the end of production.
| Detail | Specification |
|---|---|
| Size | 3.56 x 3.56 x 0.84 in (90.4 x 90.4 x 21.4 mm) |
| Weight | 3.86 oz (109.5 g), with actual size and weight varying by manufacturing process |
| Model number | S6ED3R |
| Network connectivity | 2.4 GHz only, 802.11 b/g/n |
| Standby power | 0.89 Watts |
| On-device control | 3 touch buttons: Temperature Up, Temperature Down, Select/Mode |
| In the box | Thermostat, installation tool, wall plate, cosmetic plate, quick start guide |
This product is presented as using 36% post-consumer recycled plastics in the product and accessories (excluding the installation tool) and as including 0% bioplastics. This product is marketed as using device packaging made with 93% wood fiber-based materials from responsibly managed forests or recycled sources.
Installation and placement notes
This item is characterized as using guided installation in the Alexa app, with the app providing step-by-step instructions for a DIY install. This item is presented as potentially requiring a power drill, a 3/16” drill bit, and a level for installation. It is presented as best practice to document wiring before removing an old thermostat by using wiring labels, taking a smartphone photo, or drawing a diagram of terminals.
It is presented as recommended to check compatibility before purchase to confirm whether the thermostat will work in a home and whether a C-wire adapter is needed, particularly for older HVAC systems or upgrades from a normal thermostat. It is characterized as requiring constant power through a C-wire or power adapter kit (sold separately), with guidance to look for a wire connected to the C-terminal on an existing thermostat.
Performance characteristics described in the listing
It is labeled as “Save money and energy” and presented as ENERGY STAR certified, with EPA estimates that ENERGY STAR certified thermostats save an average of $50 on yearly energy bills. It is specified as supporting schedules in the Alexa app with up to seven time periods configurable each day of the week. This product is described for use on features in the Alexa app that include emergency heat mode, vacation mode, energy dashboard monitoring, and energy saving incentives.
This product is presented as not having a speaker or microphone, and it is specified as requiring an Alexa-enabled device for voice control. This product is marketed as supporting on-the-go temperature control via the Alexa app, with an option to control with both the Ring app and Alexa app.
Review patterns buyers commonly mention
This item is characterized as commonly described by buyers as easy to install and easy to set up. This item is presented as commonly described as easy to manage from the Alexa app and as offering convenient phone control. It is presented as commonly described with mixed feedback on functionality and performance, including reports that it works well and reports that it stops working in the middle of the night.
It is presented as commonly described with mixed feedback on Alexa compatibility, including reports that it works well and reports tied to single-user control in the Alexa app. It is characterized as commonly described with some buyers saying the temperature control options are not ideal.
Pros
- This product is presented as offering guided installation in the Alexa app and buyers commonly describe installation and setup as easy.
- This product is marketed as enabling on-the-go control in the Alexa app and buyers commonly describe management from the Alexa app as easy.
- This item is characterized as supporting schedules, energy dashboard monitoring, and indoor humidity sensing in the Alexa app.
Cons
- This item is presented as requiring a C-wire power or a power adapter kit (sold separately), and setup guidance emphasizes checking compatibility and C-wire needs.
- It is presented as receiving mixed feedback on functionality and performance, including reports that it stops working in the middle of the night.
- It is intended for use on one Alexa account, and buyer feedback commonly references single-user control in the Alexa app.
FAQ
What kind of HVAC systems is this thermostat compatible with?
This product is presented as compatible with most 24V HVAC systems such as conventional forced air, heat pump, and radiant boiler, and it is presented as not compatible with 110–240V HVAC systems like electric baseboard heat.
Does it need a C-wire?
This product is marketed as requiring a C-wire power or a power adapter kit (sold separately), and it is presented as recommended to check compatibility to determine whether a home needs a C-wire adapter.
Which Wi-Fi networks does it support?
This item is characterized as working with 2.4 GHz Wi-Fi networks and specified as 2.4 GHz only, 802.11 b/g/n, and it is specified as not supporting 5GHz networks or ad-hoc (peer-to-peer) Wi-Fi.
How do you control it day to day?
This item is presented as controllable by the Alexa app, by voice control with a compatible Alexa-enabled device, and by on-device controls using three touch buttons for Temperature Up, Temperature Down, and Select/Mode.
What’s included in the box?
It is specified as including the thermostat, installation tool, wall plate, cosmetic plate, and quick start guide, and the setup is presented as guided through the Alexa app.
This product is presented as Amazon Smart Thermostat with app control and optional voice control through a compatible Alexa-enabled device. This product is marketed as offering guided DIY installation in the Alexa app plus schedules and other app-based features. This item is characterized as part of a smart home setup that works with Alexa and Ring, including on-the-go control with the Alexa app. It is labeled as ENERGY STAR certified, aligning with the broader category of ENERGY STAR certified thermostats.