“It’s just a fad,” they said. “It’ll never catch on.” Oh, how wrong they were! Uptake of wearables has exploded, establishing them as a core category in the Internet of Things. Sales in the US will hit $70 billion by 2024 – they’re already forecast to hit the $5 billion mark by 2018. Wearables have truly found a niche in the health and fitness market, reflected by the dedicated ‘Fitness and Activity’ category at this week’s IFA in Berlin, Germany’s biggest tech show. In fact, for 45 percent of wearable owners, their chosen piece of on-body tech is a fitness…

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