Works Echo Dot (3rd Gen) - Smart speaker with Alexa - Charcoal
Connectivity: Wirelessly connect and control a wide range of compatible smart devices from 40+ partner brands, including voice assistants, lights & switches, speakers, cameras, sensors and more 
Home Automation: Teach the hub your Good Morning, Goodbye, Goodnight, and other routines to automatically turn devices on or off throughout the day 
24/7 Monitoring: Receive app alerts from connected devices when there’s unexpected activity in your home.Material: Plastic 
Voice Controls: Use voice commands to control connected devices using SmartThings and the Google Assistant 
Improved DIY Solution: Improved guided onboarding for easier setup. Hub connects with WiFi so does not need to be connected to an Ethernet cable 
Compatible with previous versions of SmartThings Sensors and Outlets 
Download new SmartThings (Samsung Connect) app for initial setup. (Tip: You can still use SmartThings Classic app once initial set up is completed) 
Requires Android (6.0 or later) or iOS (11.0 or later)
Product not supported outside U.S
Compatibility: Works with Google, Alexa, SmartThings, and ZigBee communication protocols
Echo Dot (3rd Gen) - Smart speaker with Alexa - Charcoal 
Meet Echo Dot - Our most popular smart speaker with a fabric design. It is our most compact smart speaker that fits perfectly into small spaces. 
Improved speaker quality - Better speaker quality than Echo Dot Gen 2 for richer and louder sound. Pair with a second Echo Dot for stereo sound. 
Voice control your music - Stream songs from Amazon Music, Apple Music, Spotify, Sirius XM, and others. 
Ready to help - Ask Alexa to play music, answer questions, read the news, check the weather, set alarms, control compatible smart home devices, and more. 
Voice control your smart home - Turn on lights, adjust thermostats, lock doors, and more with compatible connected devices. 
Connect with others - Call almost anyone hands-free. Instantly drop in on other rooms in your home or make an announcement to every room with a compatible Echo device. 
Alexa has skills - With tens of thousands of skills and counting, Alexa is always getting smarter and adding new skills like tracking fitness, playing games, and more. 
Designed to protect your privacy - Built with multiple layers of privacy protections and controls, including a microphone off button that electronically disconnects the microphones.