Amazon wants Alexa in your appliances, on your body, in your phone, and in your car. In the company's vision for the future, Alexa will never be more than an arm's reach away. Amazon's aspirations don't stop at its own hardware, either. It has invested heavily in the wider Alexa-connected ecosystem, throwing $60 million at smart thermostat company Ecobee and spending $1 billion acquiring Ring, which builds a popular - and controversial - home security doorbell.

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