At CES, a number of companies showed off new high-tech smart rings designed to give wearers new insights into their personal health.

The new Asus Zenbook 17 Fold OLED jis billed as “the world's first 17.3-inch foldable OLED laptop.”

How safe would you feel in a self-driving car moving at 50 mph? What if we revved up the speed a little, say to about 150 mph? Yes, I’d...