Hume Band 2.0 is a longevity-focused wearable (not just a fitness tracker) from Hume Health. It uses 5 LEDs + 4 photodiodes to continuously monitor HRV, blood pressure (cuff-free), SpO2, skin temperature, sleep stages, and metabolic capacity — then feeds that data into an AI-powered “Health Coach” (built on Claude AI) that flags early warning signs of illness before symptoms appear. Key positioning: 69% of health alerts were later confirmed by a doctor; users reportedly gain +6.8 years of extra lifespan on average. It’s backed by testimonials from Olympic and UFC athletes, has a 45-day money-back trial, 14-day.

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