Douyin, the Chinese version of TikTok, has expanded its one-hour delivery service to more cities, including Wuhan and Tianjin, TechPlanet reported on Wednesday. Previously, this service was available only in trial cities such as Shenzhen, with limited sections for groceries, fruit, and vegetables. The move sees the short video app increasingly take on established delivery services as competition in the sector heats up. Chinese e-commerce giant Jingdong currently provides one-hour delivery for a range of items, including supermarket products, convenience store items, household appliances, medicine, and department store products. This year, Alibaba-owned e-commerce platforms Taobao, Tmall supermarket, and Hema Fresh have all launched their own instant delivery services. Taobao sellers can display tags indicating hourly delivery, while Hema Fresh has expanded its one-hour delivery distance to 5 kilometers and Tmall supermarket offers a half-day delivery service. [TechPlanet, in Chinese]