# Sensi Lite Smart Thermostat ST25

*Published: 2025-05-11 | Updated: 2025-05-11 | Source: https://shopsavvy.com/products/sensi-lite-smart-thermostat-st25*

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**Price Range:** $39.53 - $107.15 across 5 retailers

## Pros
- Easy installation process, often completed in under 15 minutes, even for beginners.
- Works well with older systems lacking a c-wire, making it versatile for many homes.
- Simple and user-friendly app interface for scheduling and controlling temperature remotely.
- Reliable connectivity, with many users not experiencing any online connection issues.
- Effective at maintaining consistent temperature with 'Early Start' feature.
- Compatible with Alexa for voice control, adding to its convenience.
- Reasonably priced compared to other smart thermostats, providing good value.
- Allows for scheduling and temperature adjustments from anywhere via a phone app.
- Features a fan-circulate function and a large, clear display for easy readability.
- Energy Star Certified, making it an eco-friendly choice.

## Cons
- Some users experienced connectivity issues during installation, requiring persistent efforts to stabilize.
- Programming might initially not match the system's functionality, leading to confusion.
- Initial setup can be confusing due to the reverse valve setting and unclear programming instructions.
- Occasional disconnections from the router, sometimes resolved by adjusting DHCP lease time.
- Wish for expanded historical data viewing beyond the current week and prior months.

## Specifications

| Attribute | Value |
|-----------|-------|
| Brand Name | Emerson |
| Model Name | Sensi Lite |
| Included Components | Installation Guide, Sensi Lite Smart Thermostat, Mounting Hardware, Wire Labels, (2) AAA Batteries |
| Model Number | ST25 |
| UPC | 786710568732 |
| Manufacturer | Emerson |
| Customer Reviews | 4.1 out of 5 stars  1,335Reviews |
| Best Sellers Rank | #8,804 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #19 in Home Programmable Thermostats |
| ASIN | B0BXZ6KXGG |
| Item Type Name | Smart Programmable Thermostat |
| Item Height | 3.13 inches |
| Unit Count | 1 1 |
| Item Dimensions D x W x H | 0.88"D x 5.07"W x 3.13"H |
| Item Weight | 0.3 Pounds |
| Controller Type | Hand Control, Google Assistant, Amazon Alexa, SmartThings |
| Additional Features | Filter Indicator, Low Voltage, Auto Changeover, Daylight Savings Time Ready, Programmable |
| Specific Uses For Product | Boiler, Heat Pump, Air Conditioner, Furnace |
| Temperature Control Type | Automatic or Programmable |
| Connectivity Technology | Wi-Fi |
| Power Source | Battery or C-wire |

## About This Product

SMART THERMOSTATS HAVE NEVER BEEN SO EASY Give your family’s comfort a smart upgrade. With the Sensi Lite smart thermostat, it’s never been easier. It all starts with a quick and simple installation—no common wire required with most systems*. Our top-rated mobile app lets you manage your home’s HVAC from anywhere, anytime. Plus, your usage activity and personal data stays private. That’s the power of putting Sensi’s over 100 years of HVAC experience on your wall. *For full details, review the Sensi Privacy Policy under the “Products Documentation” section below. Note: if you sign up for a program with a third party, such as a utility or controller, details and terms for that program are between you and the third party, not Emerson, and may include additional data collection. Certain add-on services require additional data to operate as intended. These services are not required and are optional.

## Last Seen Prices

| Retailer | Price | Availability | Last seen | Store's standard terms |
|----------|-------|-------------|-----------|------------------------|
| [Amazon](https://shopsavvy.com/api/redirect/products/k7GoCJCEPvgJaHCioqbU/offers/c1682e01-bf1f-d369-f369-435187164361?source=shopsavvy&medium=product-page) | $39.53  | In Stock | 2025-05-11 (may have changed) |  |
| [ShopBLT.com](https://shopsavvy.com/api/redirect/products/k7GoCJCEPvgJaHCioqbU/offers/8c7a7f4e-8be2-a6c1-bc7d-a9986c80cdfa?source=shopsavvy&medium=product-page) | $77.01  | In Stock | 2025-05-11 (may have changed) |  |
| [The Home Depot](https://shopsavvy.com/api/redirect/products/k7GoCJCEPvgJaHCioqbU/offers/61507179-c63e-2ab8-bd9c-28da7e22643a?source=shopsavvy&medium=product-page) | $78.99  | In Stock | 2025-05-11 (may have changed) | 90-day returns (in store too) |
| [Best Buy](https://shopsavvy.com/api/redirect/products/k7GoCJCEPvgJaHCioqbU/offers/026a0011-54df-20e6-1d32-df0a467b0c6f?source=shopsavvy&medium=product-page) | $84.99  | In Stock | 2025-05-11 (may have changed) | 15-day returns (in store too) · free return shipping · free shipping on $35+ |
| [Target](https://shopsavvy.com/api/redirect/products/k7GoCJCEPvgJaHCioqbU/offers/f3f6a09e-22cb-c0b9-feff-ce70301bddde?source=shopsavvy&medium=product-page) | $107.15  | In Stock | 2025-05-11 (may have changed) | 90-day returns (in store too) · free return shipping · free shipping on $35+ |

*Store terms are each retailer's standard return and shipping policy from ShopSavvy's retailer research; some products and categories differ, so check with the store before buying.*

[See every retailer and the full price history on ShopSavvy](https://shopsavvy.com/products/sensi-lite-smart-thermostat-st25)

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