The document provides a comprehensive analysis of Fitbit's business performance in Q2 2015, including revenues, profits, costs, gross income, and market segments. It highlights significant year-over-year revenue growth, with revenues reported at $113.6 million for Q2 2015 and a net income of $14.8 million. Additionally, the analysis covers the geographical distribution of revenues and the number of devices sold, emphasizing trends in both the US and international markets.