Can you really trust your smartwatch? A doctor explains

Smartwatch ownership is on the rise across the United States. Data from the Yale School of Medicine shows that over 40% of adults now use wearable technology to track heart rate, sleep quality, and fitness. While users are interested in sharing this data with their doctors, few have successfully integrated these personal health metrics into their professional medical care.

Dr. Sos Mboijana, an internal medicine physician, notes that while the increased access to health monitoring is a positive development, users should maintain a realistic perspective on what these devices can actually do. He warns that proprietary metrics like sleep readiness or recovery scores are not yet validated as medical-grade diagnostic tools. Because these algorithms remain private, doctors often lack the context needed to treat specific conditions based on a single score.

Physicians suggest that the true value of wearable technology lies in long-term trend analysis. Instead of reacting to a single night of poor sleep or a temporary spike in heart rate, patients should monitor how their metrics change over several weeks. Factors like late-night exercise, travel, or diet changes often impact these readings more than underlying medical issues.

Dr. Mboijana advises against starting a search for new health tech on a manufacturer's website, where marketing language can distract from clear goals. He recommends consulting a primary care doctor to determine which metrics are relevant to your specific health objectives. By focusing on clinically validated functions such as ECGs or glucose monitors, patients can have more productive conversations with their providers. As technology advances, artificial intelligence may eventually bridge the gap, helping physicians turn a flood of personal data into actionable health insights.