Global smartwatch revenues in Q4 2017 were up 106% QoQ with the industry ARPU trending upwards largely due to an increasing Apple Watch ASP. Apple's Watch OS, Android Wear, Garmin's 'Connect IQ', Fitbit's 'Fitbit OS', and Samsung's 'Tizen' operating systems continue to compete for the top smartwatch OS revenue share position. This report provides quarterly global smartwatch shipments, wholesale (ASP) pricing, and revenues for 6 major operating systems starting Q3 2016. Global smartwatch market share by price-tier, and global revenue-share tracking by PRICE-TIER, for these operating systems are also included. This report is a vital tool for monitoring the financial health and tiered market share of leading operating systems such as Apple Watch OS, Android Wear, Tizen, Pebble OS, Connect IQ, Fitbit OS, and others.