Fitbit’s AI coach expands

Google’s Fitbit app is turning from a step counter into something closer to a pocket trainer: an artificial intelligence coach that started as a limited test is now reaching users in 37 countries and 32 languages through a public preview rollout. (blog.google) The feature is called Fitbit Personal Health Coach, and Google says it can build workout suggestions, explain sleep patterns, and answer questions using data you already log from a Fitbit device and the Fitbit app. (blog.google) This did not start as a global launch. Google first introduced the coach for eligible Fitbit Premium users in the United States in 2025, then widened it in February 2026 to a small group of English-speaking markets including the United Kingdom, Canada, Australia, New Zealand, and Singapore. (pcmag.com) (blog.google) The new April 2026 expansion is bigger in two ways at once: more places and more languages. Google’s announcement says the public preview now supports 32 languages, which matters because a coaching tool only works if you can ask it everyday questions in your own words. (blog.google) Google is also feeding the coach a new fitness signal called maximum oxygen uptake, which is the standard estimate of how efficiently your body uses oxygen during exercise. Fitbit used to show this as Cardio Fitness Score, and now it is being folded into the coach so the advice can react to your cardio level instead of just your step count. (blog.google) (androidauthority.com) That matters because most wearables are good at collecting numbers and bad at translating them. A watch can tell you that your sleep dipped or your heart rate changed, but a coach can turn that into a concrete nudge like adjusting a run, adding recovery time, or tightening a bedtime routine. (dataconomy.com) (blog.google) Google has also been loosening the paywall around the product. CNET reported on March 31 that some coach features were being opened to free Fitbit users, while Premium still keeps deeper capabilities, which suggests Google wants the coach to become a default part of the Fitbit app rather than a niche add-on. (cnet.com) The company is doing this inside a redesigned Fitbit app that has become more conversational over the past year. Instead of tapping through charts for sleep, workouts, and readiness, users can increasingly ask direct questions and get a single answer stitched together from multiple health signals. (pcmag.com) (blog.google) There is still a limit on what this can replace. Google is calling it a public preview, not a finished medical tool, and the company frames it around fitness, sleep, habits, and general guidance rather than diagnosis or treatment. (blog.google) The practical shift is simple: Fitbit used to mostly answer “what happened today,” and this coach is trying to answer “what should I do next.” With this rollout, Google is betting that the next wearable upgrade is not another sensor on your wrist but better advice from the data already there. (androidpolice.com) (blog.google)