This week we are introducing the concept of wearable computing. We will cover some of the challenges of developing wearables from technical and non-technical perspective. We'll also talk a little about 'Wear OS by Google' (which is Google's rebranded 'Android Wear'). Smartwatches in particular were predicted to have had an explosion in use; they've not disappeared by any means, but they've not become the next 'must have' that everyone keeps with them all the time. Why is this?