In its first report since going public, Fitbit announced second-quarter revenues of $400.4 million, more than tripled from $113.6 million. International sales, which grew by 250 percent on an annualized basis, were driven by the Europe, Middle East and Africa region and the Asia-Pacific, up by 301 percent and 292 percent, respectively. Quarterly sales in Europe totaled $39.7 million while the Asia-Pacific region recorded sales of $31.2 million. In the U.S. sales grew by 253 percent to $312.7 million. Some new products were crucial in determining the exceptional sales performance. These include Charge, Charge HR and Surge, which accounted for 78 percent of revenues. Fitbit's quarterly net income grew by 75 percent to $7.9 million. The company sold 4.5 million connected health and fitness units during the second quarter of 2015, bringing the total to more than 25 million to date. Fitbit sells its products in 50 countries.