Over the years, Apple has revolutionized the smartphone industry — sometimes, with great advances from model to model; and other times, with more modest changes.
“Since its introduction in 2007, Apple’s iPhone sales have consistently increased, going from around 40 million units sold in 2010 to more than 230 million iPhones sold in 2015 alone. iPhone sales worldwide generated more than 155 billion U.S. dollars in revenues in 2015. As sales increased, the iPhone gained space within the company, and has become the most successful Apple product to date. “
“The iPhone’s share of the company’s total revenue has jumped from about 25 percent in the beginning of 2009 to around 70 percent in the first quarter of 2015. As of the first quarter of 2016 (4Q ’15 calendar year), iPhone’s share of Apple’s revenue was at 68 percent, the third highest figure to date. Much of the iPhone’s success can be attributed to Apple’s ability to keep the product competitive throughout the years, with new releases and updates.”
Here’s an interesting video that shows how the iPhone has evolved over the years across several attributes.