It’s a big day for both Apple and Major League Baseball (MLB). Today, October 23, 2026, Apple launched its biggest iPhone change ever: the iPhone Duo . But in just a few hours, baseball’s most important series will kick off, with the Tampa Bay Rays facing the Milwaukee Brewers in the World Series. Game 1 starts at 8 p. m. ET. And there’s a commonality here: MLB has launched a redesigned app experience built to take advantage of the iPhone Duo’s foldable form factor. So, if you were lucky enough to pick one up, you can tune into the World Series on your Duo’s 5. 4-inch cover screen. Or, let’s be real, you’ll open it up and watch on that enormous 7. 6-inch inner display, complete with its Nano-texture finish. But this experience is more than just giving baseball a bigger screen. MLB has been working on the new experience since Apple announced the iPhone Duo on September 9, getting it ready for launch in just 44 days. You can fold the iPhone Duo like a mini laptop — ahem, MacBook — or prop it up in a seated position, with the livestream on top and real-time, updating box scores on the bottom. Watch in full screen on either display, or split the screen with another app. Whether it’s X (formerly Twitter), Threads, a group chat to discuss the game, or even Apple’s Sports app, you can keep up with the conversation while keeping an eye on the action. The idea is to meet fans where they are and make the most of the hardware they have in their hands. The iPhone Duo gives MLB a new canvas, but the real opportunity is to deliver something useful with it—an experience that makes following baseball feel more natural, not just bigger. (Image credit: Apple) Sean Curtis, MLB’s chief technology officer, told TechRadar that he’s particularly excited about combining the league’s Game Day experience with live video. "I’m really excited about, you know, the full-screen nature of just like how good our video looks on Apple devices and just really take that in as like, ‘hey, this just came from my phone, but it really feels like just such a quality experience,’" Curtis said. "I really like our Game Day experience merged with video, so watch video [and] live stats." The combination lets fans follow the action and keep tabs on the numbers in one place, rather than bouncing between the two. MLB is also using AI to generate additional information about individual plays, players, and game situations, adding context to the action as it unfolds. "When you get into Game Day, and you’re actually applying context to the events, we’re using AI to actually generate more information about each play, each player, each situation," Curtis said. For a sport with so much happening between pitches, that combination could be particularly compelling. The video gives you the action, while the data helps explain it…