Who Is John Ternus? Apple’s New CEO, Career and AI Plans Explained

Quick answer: John Ternus became Apple’s CEO on September 1, 2026, succeeding Tim Cook, who led Apple for 15 years and is now executive chairman. Ternus joined Apple in 2001, ran Hardware Engineering, and oversaw products including the iPad, AirPods, iPhone, Mac and Apple Watch. His biggest challenge is artificial intelligence, where Apple has trailed rivals such as OpenAI and Google.

This guide explains who John Ternus is, his career and the products he led, how the handover from Tim Cook worked, Apple’s AI problem, what has already changed under his leadership, and what it means for iPhone users.

John Ternus at a Glance

Source: Apple Newsroom, April 20, 2026.

John Ternus’s Career at Apple

Ternus spent his entire 25-year Apple career in hardware, rising step by step:

• 2001: joined Apple’s product design team.
• 2013: became vice president of Hardware Engineering.
• 2021: joined Apple’s executive team as senior vice president of Hardware Engineering.
• September 1, 2026: became CEO and joined Apple’s board of directors.

Products he oversaw

According to Apple, Ternus led hardware engineering for:

• The iPad and AirPods, and many generations of iPhone, Mac and Apple Watch
• The MacBook Neo
• The iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air and iPhone 17
• AirPods features such as active noise cancellation and over-the-counter hearing aid capability
• New materials, including a recycled aluminum compound and 3D-printed titanium in the Apple Watch Ultra 3

Apple also credits him with work on reliability and durability, which is a big reason modern iPhones survive drops and water better than older models.

Timeline: Apple’s Leadership Change

How the Handover From Tim Cook Worked

Apple announced the change on April 20, 2026, after a unanimous board vote, and it took effect exactly as planned on September 1. The new structure looks like this:

• John Ternus: CEO and board member.
• Tim Cook: executive chairman, helping with matters such as engagement with policymakers around the world.
• Arthur Levinson: moved from non-executive chairman, a role he held for 15 years, to lead independent director.

Cook said Ternus “has the mind of an engineer, the soul of an innovator.” The long, planned handover was designed to avoid surprises for employees, investors and customers.

What Tim Cook Left Behind

Ternus takes over a company in strong financial shape. Under Cook, according to Apple:

• Apple’s market value grew from about $350 billion to $4 trillion, roughly AED 1.29 trillion to AED 14.69 trillion.
• Fiscal 2025 revenue passed $416 billion, about AED 1.53 trillion.
• Services such as the App Store, iCloud and Apple Music became a business of over $100 billion.
• New product categories launched, including Apple Watch, AirPods and Apple Vision Pro.

Apple’s AI Challenge

Apple leads in smartphones, but it has trailed rivals in artificial intelligence. Its planned Siri overhaul faced repeated delays, and Apple has relied on partnerships with outside AI companies rather than shipping everything in-house on its own schedule.

Apple had already started changing its AI leadership before Ternus took over. AI and machine learning chief John Giannandrea stepped down in late 2025, and Apple brought in Amar Subramanya, a long-time Google veteran who had worked on Google’s Gemini assistant before a period at Microsoft.

The rebuilt Siri arrived with iOS 27 in September 2026. If you have not tried it yet, our guide on how to download and install iOS 27 walks you through it.

Why a hardware leader for an AI problem?

Choosing a hardware engineer to lead an AI turnaround may seem surprising, but there are good reasons:

• Apple promotes from within: Ternus knows how Apple builds products and how its teams work together.
• AI runs on chips: much of Apple’s AI strategy depends on running models on the device itself, which is a hardware and chip design challenge.
• He is a technologist: unlike Cook, whose strength was operations and supply chains, Ternus comes from engineering.

How Apple’s AI Strategy Works Today

Apple’s approach to AI is different from that of most rivals, and understanding it explains many of Ternus’s choices:

• On-device first: as many Apple Intelligence tasks as possible run on the iPhone, iPad or Mac itself, using Apple’s own chips. This is faster and keeps more data private.
• Private Cloud Compute: bigger requests go to Apple-run servers designed so that, as Apple’s security team explains, your personal data is not stored or made accessible to Apple.
• Partners for some tasks: Apple works with outside AI companies for certain features instead of building every model itself.

This privacy-first approach is a selling point, but it has also made Apple slower to match the raw power of cloud-based assistants. Balancing speed, power and privacy is the core of Ternus’s AI challenge.

Apple vs Rivals in AI

For a closer look at the Android side, see our Galaxy S26 series guide and iPhone 18 Pro vs Galaxy S26 Ultra comparison.

What Has Changed So Far Under Ternus

Ternus’s first big public moment came quickly. At Apple’s September 9, 2026, event he helped introduce the iPhone 18 Pro and iPhone 18 Pro Max, the first iPhones launched with him as CEO. The headline feature is a 48MP main camera with a true variable aperture. See our iPhone 18 Pro price and specs guide for USA and UAE prices.

Apple also launched iOS 27 with the rebuilt Siri and new privacy tools, such as the option to hide your location from one person in Find My, explained in our Find My location guide.

Challenges Ahead for Apple’s New CEO

• Catching up in AI: rivals such as OpenAI, with its GPT-6 Astra, are releasing powerful new models quickly.
• Robotics and new categories: Apple is exploring robotics and other new devices, an area we discuss in our look at physical AI and robots.
• Supply chain and manufacturing: Apple still depends heavily on production in China while facing political pressure to build more elsewhere.
• Rising component costs: memory chip prices are pushing phone prices higher across the industry.
• Regulation: app store and competition rules in the USA, Europe and other regions continue to change how Apple does business.

What to Watch in Ternus’s First Year

These are the moments that will show what kind of CEO Ternus is:

• Siri improvements: how quickly Apple adds new abilities to the rebuilt Siri through iOS 27 updates, and how well it understands natural requests.
• Apple’s next developer conference: WWDC, usually held in June, is where Apple shows its next software and AI plans.
• The spring product lineup: any new iPhone, iPad or Mac launches will show how Ternus balances price, features and AI.
• Quarterly results: Apple’s earnings reports show whether iPhone and Services sales keep growing under new leadership.
• New team members: Ternus’s choice of a new hardware engineering leader and other senior hires will shape Apple for years.

For investors and fans alike, the key question is simple: can a company famous for great hardware become just as strong in AI software? Ternus’s answer will define his time as CEO.

What It Means for iPhone Users in the USA and UAE

For everyday users, the change at the top will mostly show up gradually:

• More focus on hardware innovation: Apple is likely to keep pushing camera, battery and materials improvements, the areas Ternus led for years.
• A faster AI push: new Siri and Apple Intelligence features should arrive through regular iOS updates, so keep your iPhone updated.
• Prices: iPhone 18 Pro prices went up by $100 in the USA and AED 400 in the UAE compared with the iPhone 17 Pro at launch, partly due to higher component costs.

If you are deciding which model to buy now, our which iPhone should I buy guide compares every current model. For a look back at where it all started, read our first iPhone facts.

Apple CEOs Through History

Frequently Asked Questions

Who is Apple’s new CEO?

John Ternus, Apple’s former senior vice president of Hardware Engineering. He became CEO on September 1, 2026.

What is Tim Cook’s role now?

Tim Cook is Apple’s executive chairman. He helps with matters such as engagement with policymakers around the world.

How long has John Ternus worked at Apple?

He joined Apple’s product design team in 2001, so he has been at the company for about 25 years.

What products did John Ternus work on?

He oversaw hardware engineering for the iPad, AirPods, MacBook Neo and many generations of iPhone, Mac and Apple Watch, including the iPhone 17 lineup and iPhone Air.

Why is AI Apple’s biggest challenge?

Apple has trailed rivals in AI. Its Siri overhaul faced repeated delays, and it has relied on outside AI partners. The rebuilt Siri arrived with iOS 27 in September 2026.

Where did John Ternus study?

He has a bachelor’s degree in mechanical engineering from the University of Pennsylvania.

Is Tim Cook leaving Apple?

No. Tim Cook remains at Apple as executive chairman of the board, a role that keeps him involved in big decisions and in relationships with governments and policymakers around the world.

What was John Ternus’s first product launch as CEO?

The iPhone 18 Pro and iPhone 18 Pro Max, introduced on September 9, 2026, and on sale from September 18 in the USA and UAE, starting at $1,199 | AED 5,099.

Image credits: Photo: Daniel L. Lu (user:dllu) / Wikimedia Commons, CC BY-SA 4.0