To sum up this Amazon Echo Flex review: this is the best smart speaker if you're looking for something small and cheap to control your smart home, but you don't need a fully-fledged speaker.

That means I’ll be able to ask Alexa to book a restaurant reservation through my Echo Flex, the quirky modular Echo speaker that plugs straight into a wall outlet. And people can still get an AI ...

Echo Flex, Echo Auto, Echo Studio, Fire TV, and other select and third-party products. Open the Alexa app and tap More. Tap Skills & Games. Tap Categories or scroll down for recommendations.

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Echo devices are also used to control lights and home appliances (see smart home). Although an Echo is the hardware, and Alexa is the service, people mostly refer to the device as Alexa.