The future will be highly instrumented; see this product page (the source of the image below) for more details
What is the wristband tracking, exactly? In short: sleep and exercise. Much like the Lark, which we reviewed back in June, it looks for micro-movements at bedtime and can tell when you’ve fallen asleep. Like the Lark, it will wake you with gentle vibrations in the morning instead of music or noise, so your partner can go on sleeping. Unlike the Lark, it can track whether you’re in light or deep sleep, and will wake you within a certain window of time, when your sleep is at its lightest.
The Up, which Jawbone’s CEO first talked about at TED, will also track your movements throughout the day. It’ll capture all the little moments of exercise you don’t think you’re getting, as well as your deliberate workouts. One Up product team member, for example, was surprised to note a half-hour of vigorous walking had been logged during his work day — when he was pacing back and forth during a conference call.