The $390 device that was announced on Monday and will be available this fall exists somewhere in between: its one part high-end, Swiss-designed watch, and one part activity tracker, able to monitor your steps and sleep in the process. As Withings CEO Cédric Hutchings tells me, “it’s the first in a new category: a premium, high-end watch that happens to have these cool features.” We tried to really turn the equation upside down, Hutchings says, and to stop trying to make a piece of technology with a screen, a piece of rubber, something you need to charge every day.