Once upon a time, a watch was just a watch. These days, though, smartwatches have all kinds of tricks built in, from heartrate sensors, to accelerometers, gyros, and tons of networking capability.

The dollar index lifted off a seven-week low on Thursday after yields on 10-year U.S. Treasuries jumped as high as 1.6% following weaker-than-expected bids in a U.S. government debt auction.