Apple’s leaked Apple Watch Ultra 3 features an LSR-based body temperature sensor module with IP69K sweat/water resistance. Platinum-catalyzed LSR retains elasticity even at 40°C ambient temperatures, critical for accurate health tracking. Shenzhen manufacturers have released LSR sport bands embedded with phase-change microcapsules to absorb body heat. Industry reports forecast medical-grade LSR will capture 28% of the wearable materials market by 2025, driven by demand for heat-resistant, skin-safe biomaterials.

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