The world’s largest technology companies are selling more devices than ever, but only Apple makes much money doing it.
That harsh reality is unlikely to change any time soon, despite a raft of new gadgets coming this fall from Google, Amazon.com and Microsoft. They include smartphones, smart speakers, tablets, laptops, headphones and even a voice-activated microwave oven. Facebook is getting into the game too with the Portal, a video-chat device that assumes there are still some people out there willing to trust the company...