Lei Jun

Lei Jun is the founder of Xiaomi, repeatedly described in elsewhere's corpus as a "genius product manager" whose disciplined focus on core priorities set Xiaomi apart from other internet figures attempting hardware . Before Xiaomi's public launch, he operated as an angel investor while quietly building the company—recruiting hardware engineers for chip and communications work and iterating MIUI weekly based on user feedback, as Gaorong Ventures' Yue Bin discovered through persistent outreach in the company's earliest days . His marathon phone call with 5Y Capital's Liu Qin—lasting overnight, burning through three batteries—secured a pivotal early investment in 2010 . Lei Jun's personal history traces to Wuhan, where a 1987 library encounter with *The Silicon Valley Fire* during his time at Wuhan University reportedly sparked his entrepreneurial drive . In elsewhere's coverage, he surfaces as a recurring reference point for founders navigating pressure: during Smartisan's struggles, Luo Yonghao cited Lei Jun's lesson about restraint and avoiding work that drifts from the business主线; Zhang Liaoyuan of Three Squirrels similarly studied how Lei Jun responded to Xiaomi's own seventh-year slump by deepening supply-chain work .