Viomi Technology is a China-based smart home water purification company. Its core product is the smart water purifier — an under-sink reverse osmosis system with AI-driven sensors that monitor water quality, auto-adjust purification settings, and send app alerts when filters need replacing. Viomi also sells replacement filters as consumables, creating a razor-and-blade model where purifier sales drive recurring filter revenue on a roughly 1-2 year lag. Viomi manufactures purifiers in-house at its Gigafactory in Foshan, Guangdong, while outsourcing other product categories like range hoods and gas stoves to contract manufacturers. The business is heavily dependent on Xiaomi, which is simultaneously Viomi's largest shareholder, strategic partner, and customer — accounting for roughly 90% of net revenues. Under this arrangement, Viomi handles R&D, design, manufacturing, and logistics for Xiaomi-branded purifiers, while Xiaomi handles distribution and end-consumer sales. Viomi's own-branded products are sold through Chinese e-commerce platforms and offline stores, and carry higher margins than Xiaomi OEM sales, making Viomi-brand mix a key profitability lever. Viomi groups its business into three segments: home water systems (~70% of revenue), kitchen appliances (~21%), and consumables (~10%). Viomi is pursuing overseas expansion in North America and Southeast Asia, and is piloting domestic distribution through gas utility companies, which have large service networks reaching lower-tier city markets.