Apple Watch

The study will use the smartphones, Apple Watches and a custom health engagement program to influence stroke risk and atrial fibrillation detection.

The new investigation also found substantial differences between the performance of specific devices, with consumer products generally outperforming research wearables.

Crunch Fitness, Orangetheory, YMCA and Basecamp are the first to rollout new device integrations and workout rewards as part of the Apple Watch Connected program.

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New clinical efforts with big-name partners, more personal health record rollouts and continued smartwatch support defined the Cupertino company's year in digital health.

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Amidst the unveiling of its newest consumer smartphones, tablets and smartwatches, the tech company said it will begin enrolling consumers into its hearing, cardiovascular and women's health studies later this year through an upcoming app.

DrChrono co-founder and COO Daniel Kivatinos demonstrates how his company's mobile EHR platform works on either a tablet or smartwatch.

The news comes roughly eight months after Apple launched its own hardware and software ECG feature for the Apple Watch Series 4.