Look, I know what you're thinking and I've been thinking the same thing, too. But Under Armour is going for something a bit different with the Armour39 performance monitor they've been teasing. What differentiates it from the crowded field of wearables is that it's a "performance" monitor, not an "activity monitor" like Nike's FuelBand, the Fitbit or even the Basis Band. It doesn't care what you do at work or on your walk to the mailbox. Armour39 wants to show you how intense you are about your workouts and nothing else.