Amazon AI Alexa Kindle Echo.

Online juggernaut Amazon Inc. unveiled its next generation of Kindle, Ring and Echo devices, among other gadgets, that are all powered by artificial intelligence and connected to Alexa+, its AI-infused personal assistant, which made its debut in February. The lineup, announced at a presentation and showcase in New York, includes new cameras for its Ring video monitoring device with a new AI facial recognition feature that allows users to register friends and family and notify them who is at the front door. Amazon’s effort to infuse more AI into its device line-up is part of technology’s latest craze as all the industry’s major players jockey to gain the upper hand.