Of course, Cisco’s number doesn’t just include smartwatches — it also counts wearable cameras, fitness trackers, and so on. Still, considering that wearables are a relatively new category, the idea that 578 million of them will be strapped onto people’s bodies in just four years time is rather impressive.
Cisco also estimates that the amount of data from wearables will increase by a factor of 18 during that time, though most of it will filter through users’ smartphones. In other words, you’re going to be seeing a lot more people tapping away at their wrists in the near future.
In addition to the huge wearable increase, Cisco expects to see smartphone ownership continue to rise to 5.2 billion by 2019. That’s almost exactly 1 billion more smartphone users than the world currently has (the figure stands at 4.3 billion). Naturally, as more people use the Internet on smartphones and wearables, data usage is also expected to rise dramatically. People used around just 30 exabytes of data in 2014, but that’s set to increase exponentially to 292 exabytes before 2020 arrives.
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