Google released the Fitbit Air, a $100 fitness tracker with no screen or speaker, designed as a minimal wearable puck that users can forget they're wearing and lasts a full week on a charge.
The Air includes sensors for steps, heart rate, blood oxygen, and skin temperature, feeding data into metrics like a 'readiness score' and sleep phases; it detects workouts automatically but requires the app for live stats during exercise.
The bundled AI Health Coach (Gemini-based, tuned specifically for health) provides summaries and suggestions but has encountered minor hallucinations—inventing workouts that didn't happen and missing data that exists elsewhere in the app.
Optional bands cost $35 (silicone Active Band) to $50 (Elevated polyurethane band); three months of Premium subscription, which includes the AI Coach, come with the tracker.
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