A few years ago, Chad Sommer, 41, a long-time athlete from Chicago, thought he'd make an "official" investment in his health. To start, he bought a basic Polar heart rate monitor ($70).
This gadget - which many fitness buffs deem the "gateway drug" - soon led him to try several different workout-tracking apps and software programs.
After several weeks of recording the data without bothering to analyze it, Sommer gave up.
"It was too much of a hassle," Sommer says. And worrying about the numbers, or worse - being "married" to them - took away from the workout experience.
"Too many people are distracted and controlled by the data. I wanted to be present," Sommer says.
Liz Pulver, a landscape architect and entrepreneur in New York City, can relate. She, too, tried a few electronic exercise gadgets but found they weren't for her.
"My life is so overscheduled and I'm so 'under the gun' all the time that I just need to unplug and take in the sounds and sights around me when I'm out running," Pulver says. "It's not like I'm training for a marathon or anything, and I found that monitoring my every move was just sort of a waste of time."
The price of the gadgets can add up. Health and wellness experts like Aimee Nicotera, former fitness director at health resort and spa operator Canyon Ranch, say that exercise enthusiasts can easily spend a few hundred dollars on the devices, which can run from $90 to $400 each.
That includes wristbands like the Nike FuelBand, Jawbone, and Fitbit, to GPS-equipped bike computers and everything in between. These devices can track your every move, be it in time, distance, laps, strokes, steps, hours of sleep, or calories.
The market for wearable exercise devices is now a $1 billion business and is expected to grow 24 percent with 94 million devices sold by 2018, according to Adarsh Krishnan, senior analyst at New York-based market intelligence firm ABI Research.
Still, nearly 50 percent of those who try fitness gadgets don't stick with them, says Sarah Robb O'Hagan, president of Equinox Fitness, which operates a chain of luxury gyms across the country.
Fitness buffs untether themselves from their gadgets for many reasons. Often the device doesn't meet user expectations or is limited in what it can do. Users may feel the devices aren't accurate or haven't had a lasting impact. And sometimes, the novelty simply wears off.
"Two of my Nike devices ($200) died in less than three months," says Yeida Perez, a New York City-based dermatological assistant. "And I gave up on the Fitbit Flex ($100) because it kept going into sleep mode when I was boxing."