Link: How Wearables Work

Wearable gadgets have flown into our everyday life in the recent months and, despite many expert predictions that 2014 will not become the year of wearables, it’s clear as day that wearable technology is here to stay forever. Smart fitness bracelets, smartwatches and smartglasses are going mainstream gradually yet confidently, and will inevitably become commodity products soon just like smartphones and tablets. But few of us really know how wearables gather required information about us, what exactly they measure and how they do it. So, I’ve decided to write this post for those curious about how wearable gadgets work.

How Wearables Work: Fitness Bracelets and Activity Trackers