Apple Watch: Non-Invasive Blood Sugar Tracking Nears Reality with New Breath Sensor

• Apple Watch has long aimed for non-invasive glucose tracking, a vision yet to materialize despite a decade of effort.
• A new device, Isaac, uses breath analysis to detect blood sugar biomarkers, currently undergoing human trials in the United States.
• Isaac, worn as a pendant, analyzes volatile organic compounds in exhaled breath, offering a needle-free alternative to traditional monitoring.
• Trials at Indiana University compare Isaac's readings with blood-based monitors, expanding to include adults with type 2 diabetes.
• FDA approval for Isaac or similar devices could validate a technology Apple might miniaturize for future Apple Watch integration.

Why It Matters: Non-invasive blood sugar monitoring for Apple Watch is closer as breath-based sensor technology advances.