Artificial intelligence-powered ultrasound wristband tracks full hand motion

Nature Electronics, Published online: 02 April 2026; doi:10.1038/s41928-026-01602-7 Hand tracking is vital for interacting with virtual and physical environments, but current technologies face various limitations, including visual obstructions and discrete tracking. Now, a wearable ultrasound imaging wristband integrated with artificial intelligence continuously tracks all 22 degrees of freedom of the hand, providing intuitive control for various applications.