Kotaku published coverage of a Labor Day sale on the Roborock Qrevo S Pro robot vacuum and mop. The post states that Amazon has the 2026 model with 18,500Pa suction selling for nearly $300 off. The article headline and generated summary both describe the price reaching an all-time low. The evidence consists of the Kotaku tweet and linked source page, which note the discount without providing exact sale price, stock levels, or additional product details.