According to Kantar Worldpanel the days of a BlackBerry OS, Symbian or Windows Phone making "significant" impact are over, since the mobile industry is all but dominated by iOS-Android duopoly.
The biggest 5 European markets (Great Britain, Germany, France, Italy and Spain) are dominated by Android-- the Google OS accounts for 74.3% of smartphone sales in the quarter ending January 2017, a "marginal" increase over the 72.9% of the same period in the previous year. In the meantime iOS holds 22.7%, with the iPhone 7 remaining the top-selling device in Great Britain, France and Germany.
Kantar points out Nokia as a potential success story in the region, as brand owner HMD Global is focusing on quality for cost with well made mid-tier devices. Such smartphones will not rival the iPhone 7 or the upcoming Samsung Galaxy S8, but do compete with the likes of the Huawei 8 and P9 Lite, both strong sellers in the price-conscious Italian and Spanish markets.