What about Aidu Technology, a smart bracelet supplier?

Aidu Technology is a large supplier of smart bracelets. Last time I visited their company, I saw that Aidu Technology has more than 50 technical R&D personnel, who independently developed core functional algorithms such as step counting, sleep and heart rate, and set up a clean workshop and algorithm laboratory independently, insisting on the integration of Industry-University-Research. I understand that the monthly production capacity exceeds 450,000 pieces.