---
product_id: 618411161
title: "Smart Thermostat with C-Wire Adapter"
brand: "amazon"
price: "R$1993"
currency: BRL
in_stock: true
reviews_count: 8
category: "Amazon"
url: https://www.desertcart.com.br/products/618411161-smart-thermostat-with-c-wire-adapter
store_origin: BR
region: Brazil
---

# Energy Star certified savings 2.4 GHz WiFi connectivity Precise temp control Smart Thermostat with C-Wire Adapter

**Brand:** amazon
**Price:** R$1993
**Availability:** ✅ In Stock

## Summary

> 🌟 Upgrade your comfort IQ with Alexa-powered smart savings!

## Quick Answers

- **What is this?** Smart Thermostat with C-Wire Adapter by amazon
- **How much does it cost?** R$1993 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/618411161-smart-thermostat-with-c-wire-adapter)

## Best For

- amazon enthusiasts

## Why This Product

- Trusted amazon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Energy Savings:** Slash your energy bills with EPA-backed ENERGY STAR efficiency—save ~$50/year effortlessly.
- • **Guided DIY Installation:** Step-by-step Alexa app setup means no pro needed—get smart in minutes and join the future of home comfort.
- • **Seamless Alexa Integration:** Control temps hands-free or remotely via Alexa app and Echo devices—comfort meets convenience.
- • **Intuitive Thermostat Hunches:** Alexa learns your routine and adjusts automatically—no manual tweaks, just smart comfort.
- • **Universal HVAC Compatibility:** Works with most 24V HVAC systems plus included C-Wire adapter for easy retrofit upgrades.

## Overview

The Amazon Smart Thermostat with C-Wire Adapter is a sleek, ENERGY STAR certified device designed for easy retrofit on most 24V HVAC systems. It offers precise temperature control, seamless Alexa voice and app integration, and smart learning features like Thermostat Hunches to optimize energy use and comfort. With guided installation and compatibility with Echo temperature sensors, it’s the savvy millennial’s choice for a connected, energy-efficient home.

## Description

desertcart.com: desertcart Smart Thermostat with C-Wire Adapter : Tools & Home Improvement

Review: Surprisingly Great Alternative to Nest! - I’ve been a loyal Nest Thermostat user for years, but I decided to give the desertcart Smart Thermostat a try, and I’m genuinely impressed! It’s super easy to set up with the Alexa app, and the integration with my Echo devices is seamless. The minimalist design looks clean on my wall, and it’s been reliable at keeping my home comfortable. I love how it learns my preferences through Alexa Hunches—no manual tweaking needed. While I typically buy Nest for its premium feel and Google Home compatibility, this thermostat holds its own, especially for the price. If you’re in the Alexa ecosystem, I highly recommend giving this a shot!
Review: Pretty nifty product - looks good, works good - recommended. - Living with it installed now for around 3 months I am very pleased with it. While thousands of miles away from home, I had to turn on the heat and set the thermostat to a higher temperature - and it worked perfectly.

## Features

- This bundle includes desertcart Smart Thermostat and C-Wire Power Adapter.
- Smart upgrade - desertcart Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
- Save money - After purchase, desertcart will send you an email with details about rebates that may be available from energy providers in your area. Explore rebates above.
- Save energy - According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.
- On-the-go control - Let Alexa set the temperature, or set it yourself from anywhere with the Alexa app.
- You can do it - The Alexa app will guide you through the installation process, but customer service is always available.
- Reliable - Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.
- Supports temperature sensors - use compatible Echo devices (Echo Dot (4th and 5th gen), Echo Dot with clock (5th gen)) and the desertcart Smart Air Quality Monitor as temperature sensors to address hot or cold spots in your home.
- Create your Alexa+ home: With Alexa+, set routines using just your voice, control multiple devices at once, and chat casually to make requests.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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) Actual size and weight may vary by manufacturing process. |
| Model number | S6ED3R |
| Compatibility | Compatible with most 24V HVAC systems (i.e. conventional force air, heat pump, radiant boiler). Not compatible with 110-240V HVAC systems (like electric baseboard heat).
Requires a C-wire power or power adapter kit (sold separately). Most homes have a C-wire. Click check compatibility to see if your home is compatible or requires a power adapter. |
| Certifications | ENERGY STAR – For EPA's ENERGY STAR requirements, see energystar.gov.
ECOLOGO Silver – Select replacement parts are available for 3 years after the end of production of your Amazon Smart Thermostat. Learn more here. |
| In the box | Amazon Smart Thermostat, installation tool, wall plate, cosmetic plate, and quick start guide. |
| Network connectivity | 2.4 GHz only, 802.11 b/g/n. Does not support 5GHz networks or connecting to ad-hoc (or peer-to-peer) wifi networks. |
| Audio | No far-field microphone; Alexa-enabled device required for voice control. |
| On-device control | 3 touch buttons on device (Temperature Up, Temperature Down, Select/Mode). |
| On-the-go-control | Alexa app, voice control, on-device, and Echo device compatible. |
| Installation method | Guided installation in the Alexa app. (You may need a power drill, 3/16” drill bit, and a level.) |
| Setup technology | Amazon wifi simple setup enables customers to connect smart devices to their wifi network in a few easy steps. Wifi simple setup is another way Alexa is always getting smarter. Learn more here. |
| App-based features | Option to control with both the Ring app and Alexa app. Features include indoor humidity sensing, schedules (up to seven time periods can be configured, each day of the week), emergency heat mode, vacation mode, energy saving incentives, energy dashboard monitoring, and automatic air filter ordering in the Alexa app. |
| Thermostat Hunches | Enable Thermostat Hunches in the Alexa app. If Alexa has a hunch nobody is home or everyone is asleep, she can adjust the thermostat automatically. Learn more about Hunches. |
| How do Hunches work? | When your phone leaves your home area and nobody interacts with Alexa for a while, Alexa might have a hunch nobody’s home. If no one interacts with Alexa for a while at night, she might have a hunch everyone is asleep. When someone interacts with Alexa or uses smart devices, she can tell that someone is home. Alexa learns from your daily interactions and improves over time.

You can also help Alexa know when you go to bed or leave home by saying, “Alexa, goodnight.” or “Alexa, I’m leaving.” |
| Support | Click here to get help using and troubleshooting common issues with Amazon Smart Thermostat. To see questions and answers from other Amazon customers, click here to visit the Amazon Digital and Device Forum. |
| Warranty and service | 1-year limited warranty and service included. Use of Amazon Smart Thermostat is subject to these terms. |
| Generation | Amazon Smart Thermostat - 1st Generation - 2021 release |
| Standby Power | 0.89 Watts |

## Images

![Smart Thermostat with C-Wire Adapter - Image 1](https://m.media-amazon.com/images/I/51gQdsMFuAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Surprisingly Great Alternative to Nest!
*by A***D on June 17, 2025*

I’ve been a loyal Nest Thermostat user for years, but I decided to give the Amazon Smart Thermostat a try, and I’m genuinely impressed! It’s super easy to set up with the Alexa app, and the integration with my Echo devices is seamless. The minimalist design looks clean on my wall, and it’s been reliable at keeping my home comfortable. I love how it learns my preferences through Alexa Hunches—no manual tweaking needed. While I typically buy Nest for its premium feel and Google Home compatibility, this thermostat holds its own, especially for the price. If you’re in the Alexa ecosystem, I highly recommend giving this a shot!

### ⭐⭐⭐⭐⭐ Pretty nifty product - looks good, works good - recommended.
*by D***R on December 1, 2024*

Living with it installed now for around 3 months I am very pleased with it. While thousands of miles away from home, I had to turn on the heat and set the thermostat to a higher temperature - and it worked perfectly.

### ⭐⭐⭐⭐⭐ Love this thermometer, a little advanced installation
*by M***G on May 19, 2024*

I love the usability features of this thermometer, including integration with my Echo. The backplate completely covered the space left by my former thermostat and I think it actually looks better with the backplate anyway. This might be important if you don't have the matching paint for the wall. My installation required a c-wire which I think added significantly to the complexity of the installation. My brother-in-law installed it for me, but he is an advanced handyman. However, it is important to note that the online instructions go into whether the c-line is needed, so you can figure this out in advance. However, it was totally worth it !

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/618411161-smart-thermostat-with-c-wire-adapter](https://www.desertcart.com.br/products/618411161-smart-thermostat-with-c-wire-adapter)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-05-25*