Spark

Fitness tracker? Check. Getting fitter? Not so much.

Fitness trackers are gaining in popularity, but how well do they actually work to change exercise behaviour?

Right now, fitness trackers are mostly worn by a niche group of early adopters, but sales are expected to take off. So, the question is: do these devices actually work to change exercise behaviour?

Researcher Mitesh Patel shares new insights about the devices, and also tells us why there's good news for people who prefer to use cheap fitness apps on their phones.

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