RheoFit Secures Pre-A Funding from Xiaohongshu and ZhenFund

RheoFit, a Shenzhen-based consumer electronics company focused on musculoskeletal health, has successfully closed its Pre-A funding round. Announced on October 24, 2025, the funding was led by prominent investors Xiaohongshu (also known as RED) and ZhenFund. The company plans to utilize this influx of capital to enhance product development and expand its global footprint, particularly in the realm of AI-powered healthcare solutions.

The company made waves in September 2024 with the launch of the world’s first automatic foam roller, designed to simplify the recovery process after exercise. RheoFit’s CEO, Adam Sun, emphasized the company’s mission: “We started RheoFit to solve a problem we all feel every day: why can’t recovery after exercise be easier and more effective?” Sun, who is both a mechanical engineer and an avid marathon runner, founded the company in 2023. He noted that traditional recovery tools often exacerbate discomfort rather than alleviate it.

Innovative Solution to a Common Problem

The inception of the RheoFit A1 was driven by a shared frustration among marathon runners and engineers. Sun and his team recognized that conventional foam rollers were often painful to use, while massage guns, although effective, could lead to numbness and discomfort. Over a span of 1,000 days, the team refined more than 20 prototypes, investing significant effort into perfecting both the algorithms and mechanical design.

Their dedication culminated in the successful launch of the RheoFit A1, which quickly garnered attention and acclaim from professional users across over 20 countries, including the United States, United Kingdom, Germany, Singapore, and Dubai. The self-moving foam roller has become a vital recovery tool, gaining popularity in various settings from gyms to outdoor sports fields.

Future Prospects and Community Support

With the backing of Xiaohongshu and ZhenFund, RheoFit is poised for growth and innovation. The partnership represents not only financial support but also a shared vision for the future of intelligent health solutions. ZhenFund expressed confidence in the RheoFit team, stating, “We believe in their long-term potential in intelligent health and their ability to create transformative products and experiences.”

Furthermore, the RED community’s increasing focus on scientific wellness aligns with RheoFit’s mission. The company views proactive, technology-driven health management as a defining trend for the future.

Looking ahead, RheoFit remains committed to its core objective: enabling every runner to go farther and recover more effectively. As the company continues to develop new technologies and enhance user experiences, it aims to redefine recovery in the world of athletics and beyond.

For inquiries, please contact Dolores Pei at [email protected].