Alexa and Echo apart from first-generation voice assistants is responsiveness. There’s no activation button to press. Simply say the trigger word (either “Alexa,” “Echo,” “Amazon,” or “Computer”) followed by what you want to happen, and it will usually be done—as long as you’ve set up everything properly and are using the correct command.
https://setupca.com/alexa-amazon-com/Once you get used to the quirks, using Alexa feels much more natural and responsive than speaking to a phone-based voice assistant like Apple’s Siri. As a result, you’ll likely find yourself using your phone less frequently when you’re at home.