In 2014, over half a billion dollars of our revenue came from outside of the Americas. We see international expansion as a key part of our revenue growth strategy going forward. On the product front, we continue to improve the ease of capturing and sharing compelling content. Yesterday, we released a firmware update for Hero4 cameras that introduces exciting new features, including 720t video capture at 240 frames per second and time-lapse video: a mode that simplifies the capture and sharing of time-lapse content. Both of these powerful features illustrate our dedication to innovation and improving our customer’s experience and demonstrate that a GoPro is a smart device capable of receiving perio, periodic updates that enhances its value. And its important that a GoPro continues to improve as it needs to match the breath of our vision because it’s a big one.
We see a future in which GoPro serves a platform for people around the world to visually express themselves like never before. A future in which their shared experience and collective content in our platform is as valuable to GoPro as YouTube is to Google or Instagram is to Facebook. With that, I’m going to turn the call over to Jack to discuss our financials
Jack Lazar – Chief Financial Officer
Thank you, Nick, and thanks all of you for joining us today. If you’ve not already done so, I’d encourage you to download from the investor section of our website the financials slides we posted concurrent with the press release earlier today. Our prepare, my prepared remarks will be focused on the financial overview of Q4 and the whole year 2014 as well as our related business trends. I’ll then provide our guidance for the first quarter of 2015.
The movement that Nick described in his remarks is happening and our 2014 financials results demonstrate how beneficial this could be for our shareholders. Over the past 3 years, GoPro has experienced exceptional growth is evidenced by a revenue compound annual growth rate of over 80% and a unit compound annual growth rate of over 65%. Across Silicon Valley there’s very few companies with over a billion dollars in revenue and growth rates in [inaudible] GoPros.
Our full year 2014 revenue of $1.4 was up 41% from 2013 providing further evidence of the large and growing market share we’re addressing. Gross margin for 2014 was 45.1% compared to 36.9% in 2013 demonstrating our commitment to the development of innovative cost effective products and solutions. Our operating income was $259.6 million or 18.6% an increase of 1$48.9 million from the 2013 and within our long term target model range of 18 to 20%. Adjusted EBITDA was $293.4 million or 21% of revenue and up almost 120% year over year. Earnings for diluted shares for the full year of 2014 were 1 dollar and 32 cents, up 164% from 2013.
Our fourth quarter results were quite exceptional, the strong reception for our new line of capture devices was broad-based and we’re please with our profitability metrics. Fourth quarter revenue of $633.9 million was up 75% year over year and gross margin of 48% exceeded our long term target model range of 42 to 44%. Gross margin increased 600 basis points year over year and 350 basis points sequentially. Operating income for the fourth quarter was $193.2 million or 30.5% of revenue an increase of $118.8 million from Q4 2013 and an operating profit for Q4 alone was 75% higher than that of our full year in 2013.
