Apple has launched at its WWDC 2025 conference Workout Buddy, an AI workout coach. The AI tool gathers data from both your current workout and your fitness history — including paces, miles logged, activity rings closed, and training load — to coach you through workouts in real time.
Combined with Apple Intelligence on the iPhone, Workout Buddy relies on a text-to-speech model to translate encouragement into a fun generative voice that sounds like a fitness trainer. In fact, the generative voice is built using voice data from Fitness+ trainers — the people who lead workouts within Apple’s Fitness+ app and studio. Users can choose from multiple voices to find the right one for them.
The Workout app on the Apple Watch and iPhone will also update so it kicks off with a pep talk once you start on a run. It will also mark moments, like when you hit four miles, if your last mile was the fastest yet, and what your average heart rate is. At the end of the workout, the AI gives you a rundown of your average pace, heart rate, and whether you hit any additional milestones, like your first 10K run award.
Workout Buddy will be available starting in English across the most popular workout types.
As Apple has been reiterating during the entire WWDC, Workout Buddy is “personal and private.”
Additionally, Apple says it is giving the Workout app on the Apple Watch a new layout, with features like Custom Workout and Race Route “just a tap away.” There are also new media features built into the app for music. Users can let Apple Music choose the best playlist based on their workout or their preferences, or users can select playlists or podcasts suggested based on what they’ve been listening to or the type of workout.