On March 29, Roborock officially released the 2021 flagship sweeping and dragging robot T7S series. The T7S is priced at 2,999 yuan (USD $428) , and the new product is priced at 2,499 yuan (USD $357) ; the T7S Plus is priced at 3499 yuan (USD $500) , and the new product's initial price is 2,799 yuan (USD $400) ; the automatic dust collection charging stand is priced at 2,199 yuan (USD $314) , and the new product's initial price is 1,899 yuan (USD $271) . As of March 2021, the Roborock sweeping and dragging robot has accumulated 117 OTA upgrades, with more than 6000 built-in solutions. At present, T7S Plus can avoid common obstacles such as weight scales and shoes, and it will turn around to avoid obstacles when it is about 1cm away from the wall or obstacle, protect the furniture and skirting, reduce the abrasion caused by collision, and effectively reduce the impact The critical height is stuck. After each cleaning, the robot will return to the charging stand for automatic dust collection, which prevents users from dumping dust and effectively reduces the frequency of cleaning the robot.