Global wearables revenues in Q4 2016 were up 63% QoQ with the industry ARPU averaging US$143. Wearables, for this report, is defined as the "core" wearables of fitness bands plus smartwatches. Apple holds the 1st position as the world's largest wearables vendor in Q4 2016 by revenue, followed by Fitbit. Our report tracks core global wearable revenue, shipments, and market share by hardware vendor by quarter. It can be used by device makers, component suppliers, operators, software developers, content suppliers and other stakeholders to determine the size of the main global wearables market.