Engineering the First Fitbit: The Inside Story | MAKE IT product R&D notes and comments

It was December 2006. Twenty-nine-year-old entrepreneur James Park had just purchased a Wii game system. It included the Wii Nunchuk, a US $29 handheld controller with motion sensors that let game players interact by moving their bodies—swinging at a baseball, say, or boxing with a virtual partner.

Park became obsessed with his Wii.

“I was a tech-gadget geek,” he says. “Anyone holding that nunchuk was fascinated by how it worked. It was the first time that I had seen a compelling consumer use for accelerometers.”

After a while, though, Park spotted a flaw in the Wii: It got you moving, sure, but it trapped you in your living room. What if, he thought, you could take what was cool about the Wii and use it in a gadget that got you out of the house?

The first generation of Fitbit trackers shipped in this package in 2009. NewDealDesign

“That,” says Park, “was the aha moment.” His idea became Fitbit, an activity tracker that has racked up sales of more than 136 million units since its first iteration hit the market in late 2009.

But back to that “aha moment.” Park quickly called his friend and colleague Eric Friedman. In 2002, the two, both computer scientists by training, had started a photo-sharing company called HeyPix, which they sold to CNET in 2005. They were still working for CNET in 2006, but it wasn’t a bad time to think about doing something different.

Friedman loved Park’s idea.

“My mother was an active walker,” Friedman says. “She had a walking group and always had a pedometer with her. And my father worked with augmentative engineering [assistive technology] for the elderly and handicapped. We’d played with accelerometer tech before. So it immediately made sense. We just had to refine it.”

The two left CNET, and in April 2007 they incorporated the startup with Park as CEO and Friedman as chief technology officer. Park and Friedman weren’t trying to build the first step counter—mechanical pedometers date back to the 1960s. They weren’t inventing the first smart activity tracker— BodyMedia, a medical device manufacturer, had in 1999 included accelerometers with other sensors in an armband designed to measure calories burned. And Park and Friedman didn’t get a smart consumer tracker to market first. In 2006, Nike had worked with Apple to launch the Nike+ for runners, a motion-tracking system that required a special shoe and a receiver that plugged into an iPod

Fitbit’s founders James Park [left] and Eric Friedman released their first product in 2009, when this photo was taken.

Peter DaSilva/The New York Times/Redux

Park wasn’t aware of any of this when he thought about getting fitness out of the living room, but the two quickly did their research and figured out what they did and didn’t want to do.

“We didn’t want to create something expensive, targeted at athletes,” he says. “Or something that was dumb and not connected to software. And we wanted something that could provide social connection, like photo sharing did.”