Global smartwatch revenues in Q3 2018 were up 58% YoY with ASP trending slightly upwards sequentially due to the pricier Apple Watch Series 4 launched at the end of the quarter offset by the continued success of the more affordable Fitbit Versa. Apple's Watch OS, Google's Wear OS, 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, Wear OS, Tizen, Pebble OS, Connect IQ, Fitbit OS, and others.