
1 / 11
Emerson
Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"
4.4
Based on 13,877 reviewsIndependent Analysis
No paid placements
Review Atlas is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.
Technical Specifications
Complete product details
- Brand
- Emerson
- Model Name
- Touch Wi-Fi Thermostat
- Product Dimensions
- 1.17"D x 5.63"W x 3.2"H
- Controller Type
- Amazon Alexa, Apple HomeKit, Google Assistant, SmartThings, Vera
- Special Feature
- Auto Changeover, Daylight Savings Time Ready, Filter Indicator, Geofence Technology, Programmable
- Color
- Black
- Specific Uses For Product
- Air Conditioner, Boiler, Furnace, Heat Pump
- Temperature Control Type
- programmable
- Connectivity Technology
- Wi-Fi
- Included Components
- Installation Guide, Mounting Hardware, Owner's Manual, Thermostat, Warranty Booklet
- Power Source
- AC/DC
- Item Weight
- 0.85 Pounds
- Voltage
- 30 Volts
- Material
- Plastic
- Shape
- Rectangular
- Display Type
- Touchscreen
- Screen Size
- 4.3 Inches
- Control Type
- App Control
- Control Method
- Voice
- Connectivity Protocol
- Wi-Fi
- Mounting Type
- Wall Mount
- Style
- Black
- Backlight
- Yes
- Specification Met
- Energy Star
- Number of Batteries
- 1 AA batteries required.
- UPC
- 786710554841
- Global Trade Identification Number
- 00786710554841
- Manufacturer
- Emerson Thermostats
- Item Weight
- 13.6 ounces
- Department
- Unisex-Adult
- ASIN
- B01N3CEUDH
- Item model number
- ST75
- Batteries
- 1 AA batteries required.
- Customer Reviews
- 4.4 4.4 out of 5 stars 13,877 ratings 4.4 out of 5 stars
- Best Sellers Rank
- #6,148 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #18 in Home Programmable Thermostats
- Is Discontinued By Manufacturer
- No
- Number of pieces
- 1
- Warranty Description
- 3 years.
- Batteries required
- No
- Import
- Made in the USA
Community Q&A
Questions from real customers
No questions yet. Be the first to ask!
Compare Similar Products
Ranked by similarity score
About This Review
Researched and written by the Review Atlas editorial team
How We Review This Product
Our independent, data-driven research process
Our Research Process
- We analyze the full manufacturer specifications and compare them against competing products
- We synthesize verified customer feedback to surface recurring praise and complaints
- We track pricing and availability so recommendations reflect real value at today's prices
- Manufacturers cannot pay for placement, scores, or favorable coverage
- Evaluated using our Home Automation Devices review criteria
Last updated: November 17, 2025
|Independent, reader-supported research






