Apple CEO Tim Cook Drove iPhone Growth, Departing from Steve Jobs’ Vision to Meet Market Demand

Apple CEO Tim Cook led the charge to make iPhones bigger during his tenure, shifting from Steve Jobs’ vision and adapting to market demands.

Cook oversaw the evolution of the iPhone from its original 3.5-inch display to models exceeding 6 inches, responding to changing consumer habits around video streaming and on-the-go viewing. The shift began in earnest after he took over as CEO in 2011, with the iPhone 5 in 2012 increasing screen size from 3.5 inches to 4 inches.

Later base models reached up to 5.8 inches before stabilizing around 6.3 inches in recent iterations. Cook also introduced larger-format iPhones starting with the Plus series in 2014, which featured a 5.5-inch display.

By 2025, Apple unveiled its largest iPhone yet — the iPhone 17 Pro Max — with a 6.9-inch screen, marking the culmination of Cook’s push toward bigger devices. This move contrasted sharply with Steve Jobs’ earlier stance, who dismissed phones larger than 4 inches as impractical, famously stating users couldn’t get their hands around them and that “no one’s going to buy that.”

Cook’s strategy aligned with broader market trends, particularly the rise of video streaming services like Netflix and YouTube, which shifted focus to mobile viewing around 2011. As these platforms grew, so did demand for larger screens capable of delivering immersive experiences.

The larger iPhone format proved commercially successful. Cook noted in January 2026 that iPhone demand was “staggering” and “unprecedented” during the holiday quarter, with Apple generating $85 billion in iPhone revenue for the period.

Early sales data indicated stronger initial demand for the iPhone 17 Pro Max compared to other models in the iPhone 17 lineup, according to market research firm Counterpoint Research.

Cook’s tenure as CEO, which ended after 15 years, saw Apple’s market capitalization grow from approximately $350 billion to $4 trillion. While product updates under his leadership were often incremental — highlighted by the introduction of the Apple Watch — his focus on operational excellence and adapting to consumer preferences drove sustained financial growth.

Cook succeeded Steve Jobs in 2011 after Jobs took medical leave due to pancreatic cancer, assuming the CEO role shortly before Jobs’ death. Reflecting on his leadership, Cook described leading Apple as “the greatest privilege of my life” and expressed gratitude to fans that he said he “cannot put into words.”

Upon stepping down, Cook transitioned to the role of Executive Chairman, with John Ternus, Apple’s longtime hardware engineering chief, taking over as CEO.