A Kindle is a small hand-held electronic device for reading books, which has been developed by online retailer Amazon. Rather as you download an iPod or MP3 player with music, you download books (via wireless technology) on to a Kindle and read them on it.

Amazon Echo (shortened to Echo) is a brand of smart speakers developed by Amazon. Echo devices connect to the voice-controlled intelligent personal assistant service Alexa, which will respond when you say "Alexa". Users may change this wake word to "Amazon", "Echo" or "Computer".