My guess is that technology cannot be smart. People are smart because they do innovative things, dogs are smart when they find things that are well hidden or do tricks, little kids are smart when they discover patterns in movement and speech, but not lifeless technology that is programmed to do a specific task.
It's weird as a human to think that a tool can be as conscious as you because, you know, it's just a tool.
"Smartphone" was reportedly first used for the Ericsson R380:
The Portsmouth Block Mills are the first example of integrated mass production using machine tools.[1]
1 - https://en.wikipedia.org/wiki/Portsmouth_Block_Mills
It's all about the same way consumer gadgets have always been marketed: to save the owner time, energy, and money, leaving them with more time for leisure and fun. Or today, leaving them more time to work to afford rent and food along with all the gadgets.