What are the top 5 wearable devices?

Healthcare wearables should be compared by clinical application rather than overall popularity. Five important categories are:

1. Health-enabled smartwatches: Devices such as selected Apple, Samsung, and Fitbit models may measure heart rate, activity, sleep indicators, and, on authorized models, record an ECG or provide rhythm notifications.
2. Continuous glucose monitors: Dexcom and Abbott FreeStyle Libre systems use wearable sensors to measure interstitial glucose over time.
3. Ambulatory ECG patches: Products such as the iRhythm Zio monitor record cardiac electrical activity for extended rhythm evaluation.
4. Wearable blood-pressure monitors: Cuff-based or specialized wearable systems collect measurements during daily activity or scheduled monitoring periods.
5. Wearable pulse-oximetry and sleep monitors: Wrist, ring, or adhesive sensors may track oxygen saturation, pulse rate, respiration, or sleep-related parameters.

These categories are not interchangeable. A consumer smartwatch may provide useful wellness information but cannot replace a clinical ECG, glucose monitor, or diagnostic sleep study unless the exact function is authorized for that purpose. FDA authorization also applies to defined hardware, software, claims, and user populations—not to every feature offered under a brand name.

Healthcare organizations should assess clinical validation, regulatory status, sensor accuracy, battery life, cybersecurity, patient adherence, data ownership, EHR integration, and the workflow for reviewing alerts. Procurement decisions should begin with the clinical question the wearable must answer rather than the number of features advertised.