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RheoFit

Writer: Liu Yangyang  |  Editor: Cao Zhen  |  From: Original  |  Updated: 2026-05-13

RheoFit specializes in combining robotics with musculoskeletal recovery. The startup, which targets athletes and physically active individuals, aims to improve physical performance and recovery efficiency through smart hardware solutions.



Video by Wang Haolan

RheoFit founder Sun Yingdong demonstrates the company’s product RheoFit A1. Wang Haolan

Sun Yingdong controls the device via a mobile app.

People watch as a visitor experience the RheoFit A1 at CES in Las Vegas, the United States in a file photo. Photos courtesy of the interviewee except otherwise stated

Sun Yingdong (front C) poses for a photo with his startup team and their products.

A product design drawing shows detrails of the smart massage roller. 

A RheoFit A1 smart massage roller on display at Shenzhen InnoX in Nanshan District. Wang Haolan

Prototypes of earlier versions of the smart massage roller on display. Wang Haolan

A dismantled RheoFit A1 smart massage roller with product descriptions on display. Wang Haolan