As smartphone and sensors continue to become more ubiquitous across the world, digital biomarkers have emerged as a scalable and practical tool to explore disease states and advance health. However, as the digital divide of access and ownership begins to fade, a new digital divide is emerging. Who are the types of people who own smartphones or smart watches, who are the types of people who download health apps or partake in digital biomarker studies, and who are the types of people who are actually active with digital biomarker apps and sensors – the people providing the high-quality and longitudinal data that this field is being founded upon? Understanding the people behind digital biomarkers, the very people this emerging field aims to help, may actually be the real challenge as well as opportunity for digital biomarkers.

中文翻译：

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数字生物标志物的新数字鸿沟

随着智能手机和传感器在世界范围内变得越来越普遍，数字生物标志物已成为探索疾病状态和促进健康的可扩展且实用的工具。然而，随着访问和所有权的数字鸿沟开始消退，新的数字鸿沟正在出现。谁是拥有智能手机或智能手表的人，谁是下载健康应用程序或参与数字生物标志物研究的人，谁是真正积极使用数字生物标志物应用程序和传感器的人——人提供该领域所依据的高质量和纵向数据？了解数字生物标志物背后的人，即这个新兴领域旨在帮助的人，实际上可能是数字生物标志物的真正挑战和机遇。