Emerson Sensi WiFi Programmable White Digital Thermostat ST55 Pack of 3

TLDR Review: Emerson Sensi Smart Thermostat

Published: February 23rd, 2025

Verdict

The Emerson Sensi Wi-Fi Smart Thermostat is a feature-rich, budget-friendly option for those looking to upgrade from basic thermostats. It offers seamless app integration and voice assistant compatibility, making it an attractive choice for smart home enthusiasts. However, if WiFi reliability is crucial, you might want to explore alternative options that offer more consistent connectivity.

Top pro:
Easy and quick installation that typically takes less than 20 minutes with clear app guidance.
Top con:
Some users noted temperature inaccuracies, especially when switching modes.
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Pros

  • •Easy and quick installation that typically takes less than 20 minutes with clear app guidance.
  • •User-friendly app includes features like schedules, usage logs, and remote control.
  • •Compatible with voice assistants such as Alexa for seamless temperature adjustments.
  • •Geofencing feature optimizes energy efficiency by adjusting temperatures based on user proximity.
  • •Includes a 3-year warranty, offering extra peace of mind.
  • •Operates without a C-wire by using 2 AAA batteries, ideal for older homes.
  • •Sleek, compact design enhances aesthetic appeal.
  • •Excellent budget-friendly option with significant functionality.
  • •The app allows monitoring of multiple thermostats, enhancing control for multiple zones.
  • •Highly compatible with smart home platforms, integrating smoothly with systems like Apple HomeKit and Alexa.

Cons

  • •Some users noted temperature inaccuracies, especially when switching modes.
  • •Issues with humidity control, as the thermostat may not stop when desired humidity is reached.
  • •Cool mode cycling differentials may not work as advertised.
  • •Lacks a trim plate, potentially exposing the wall behind it.
  • •No proximity sensor or vacation mode, limiting some advanced features.
  • •Significant issues reported with maintaining a reliable WiFi signal, causing connectivity problems.
  • •Display problems noted in some cases, with no functioning menus or options.
  • •WiFi connectivity issues can persist even with a mesh network in place.
Lowest at Amazon
$99.00 at Amazon
Price seen Feb 10, 2025
Lowest at any Popular Retailer
$86.24 at AliExpress
Price seen Dec 12, 2024

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How we researched this

About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from 7 retailers in ShopSavvy's price data, most recently seen Feb 10, 2025.

Where to Buy

Prices last seen Dec 12, 2024 to Feb 10, 2025
RetailerPriceLast seenBuy
$86.24Dec 12, 2024
may have changed
$98.00Dec 12, 2024
may have changed
$99.00Feb 10, 2025
may have changed
$99.00Dec 12, 2024
may have changed
$99.00Dec 12, 2024
may have changed
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