Nicole Nguyen
Personal technology columnist and reviewer for the Wall Street Journal, offering hands-on impressions of consumer devices and analysis of industry strategy.
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Feb 4, 2026 • 8min
What AI fitness apps can and can't do — for now
Nicole Nguyen, personal tech columnist at The Wall Street Journal who tests consumer apps and devices. She compares AI fitness tools like Fitbit, Peloton and Apple Workout Buddy. She discusses cost and hardware trade-offs. She warns about hallucinations and glitches. She explores motivation, trainer impact, and what to watch next in form correction and AI meal tracking.
Feb 4, 2026 • 8min
What AI fitness apps can and can't do — for now
Nicole Nguyen, a Wall Street Journal personal tech columnist who reviews consumer tech and AI in fitness apps. She walks through trials of Apple’s Workout Buddy, Fitbit’s AI coach, and Peloton’s form-tracking camera. Short takes cover form correction, frustrating hallucinations and rep counting, higher subscription costs, and where nutrition and form AI may head next.
