India, Aug. 7 -- Across Hollywood and Bollywood, health tech is a quiet, powerful signal of self-care. Celebs have been sporting their favourite wellness accessories: wearable health tech. Actors Gwyneth Paltrow, Alia Bhatt and Jennifer Aniston have been spotted with Oura rings, while Katrina Kaif is regularly seen with a continuous glucose monitor patch on her arm. Now, it's not just A-listers; people in the real world, too, are now relying on wearables that go far beyond step counts and sleep scores. As per a report by Grand View Research - an India and US based market research and consulting company - the global wearable health tech market stood at $60 billion (nearly Rs.5 lakh crore) in 2023 and is projected to cross $170 billion (over Rs.14.2 lakh crore) by 2032. Today's wearables can tell you if your skin is dehydrated, track your hormone levels through sweat, and nudge you to rehydrate or rest. And health influencer Varun Duggirala is totally onboard: "I'm turning 43 next week; the older I get, the more I want health to feel effortless. Wearable tech gives me an easy way to track signals I'd otherwise ignore." Global beauty and health companies are investing in wearables that prioritise prevention over correction, and India's not far behind. Hyderabad-based SkinKraft uses AI to personalise skincare based on skin type and environmental exposure. Bengaluru's Ultrahuman offers a smart ring that tracks sleep, glucose, hydration, and stress patterns, syncing with an app to give daily readiness scores. Another rising trend is LED acne patches from World Beauty Care that zap inflammation and boost healing without invasive steps. These patches use light therapy to kill bacteria and calm inflammation. Healthcare experts do find some merit in using the data from such gadgets and apps to aid and facilitate medical care. "Even patients bring in wearable data now. I use it to support recovery plans and monitor activity levels," says Lakshay Bhaktiani, Head of Physiotherapy, PSRI Hospital, Delhi. Anjana Kalia, Ayurvedic doctor and nutritionist, shares: "Many clients share sleep data, hydration metrics, calorie burn... These help personalise meal planning and understand eating habits." Some wearables now include skin sensors that monitor hydrations, pH, or temperature, informs consultant dermatologist Bhawuk Dhir, but cautions that they are not reliable enough to replace dermatological assessments....