Google has killed the Fitbit app and replaced it with Google Health, launching alongside the Fitbit Air: a screenless, 1.4-by-0.7-inch plastic sensor puck that slots into swappable bands and runs for approximately one week on a single charge.

The device collects continuous health data and can cache up to a day of readings without a phone connection. Google is also shipping an AI health coach inside the Google Health app to interpret that data, though how reliably it does so remains an open question. A Steph Curry special edition exists, confirming earlier leaked sightings.

The full piece is worth reading for what it does not answer: what sensors are inside, what the AI coach actually has access to, and what Google Health replaces functionally versus what it drops. Those gaps matter before anyone hands Google a continuous biometric stream.

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