Apple SVP Jeff Williams reveals that Apple employees have been working out at the facility for years without even knowing what they were working on. It allowed Apple to learn how to measure calorie burn and where exercise actually starts, said Jay Blahnik, formerly a Nike+ FuelBand Consultant.
In the lab, there are climate chambers which simulate different environments for testing. There's also yoga mats and a variety of exercise equipment from treadmills, to ellipticals, to rowing machines.
Williams said, "I think we've amassed already what may be one of the world's largest pieces of data on fitness and our view is we're just beginning. The impact on health could be profound."
Take a look a the video below for more details. The Apple Watch goes up for pre-order on April 10th. Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.