This is why every company and their mother company is making a "fitness tracker" right now. Basically all it takes to count steps is an accelerometer, and accelerometers are dirt cheap. There's one big reason steps have become the de facto metric for measuring heath: they're easy. UP by Jawbone iPhone-App 4.18 Deutsch: Mit der kostenlosen App UP und dem passenden Fitness-Tracker berwachen Sie Ihr Schlaf-, Bewegungs- und Essverhalten. They could be hard steps or easy steps, fast or slow, balletic dance moves or popping and locking. Case saying, "We found that smartphone apps are just as accurate as wearable devices for tracking physical activity."īut here's the thing: Steps are just one small item under the larger umbrella of physical activity, and I would argue that it's a lousy metric for getting a picture of your overall health and activity levels. Indeed, that's pretty much what the original JAMA study claimed, with lead author Meredith A. And one might be tempted to conclude that since the phones were pretty accurate in the step test and they're not subject to the same false positives as wrist-worn devices, they must be better at tracking your physical activity. Technology in the wearable and mobile spaces is evolving too quickly to judge its efficacy using outdated devices. That didn't stop tech journalists from some of the world's biggest outlets from jumping on the data, parroting the study's findings as facts, and declaring dedicated fitness trackers to be essentially redundant and useless. They also tested a Nike Fuelband, a notoriously inaccurate piece of dogshit which skewed the results considerably, and the Digi-Walker SW-200, which is something I've never heard of. Slightly better is the Fitbit Flex and the Jawbone UP24 which are both about a year and a half old.
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They used a Samsung Galaxy S4 and an iPhone 5s, both nearly two years old, and the Fitbit Zip and Fitbit One, both two and a half years old.
The devices the researchers tested were ancient. Unfortunately, it took just a little bit of reading to discover that the study was flawed. A study recently appeared in JAMA that essentially claimed that your smartphone was as good or better at tracking your activities as a wearable fitness tracker.
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