According to our Country Share Tracker (CST) service, the UK handset market grew +6% year-on-year in Q3 2012, reversing the previous quarter’s decline, as Samsung’s continued strength combined with the launch of the new Apple iPhone a month earlier than in 2011 to boost Q3 handset shipments. This published report, available to clients, tracks handset vendor shipments and marketshare at the four major UK operators -- O2, Vodafone, Everything Everywhere and Three -- from Q1 2009 to Q3 2012. The report is an important tool for measuring the health of individual handset brands at the operator level.