Group 1 - A Xiaomi Mi Bunny children's watch spontaneously ignited on July 28, causing smoke and sparks, but fortunately no injuries occurred [1][3][5] - The incident was reported by a customer who had purchased the watch for 299 yuan in January 2024, and it was used infrequently [5] - The customer expressed concerns about the safety of electronic watches, especially when left charging unattended, highlighting potential risks [5] Group 2 - After the incident, the customer contacted Xiaomi's official customer service, which requested the watch to be sent for inspection, but the customer refused due to concerns over impartiality [5] - Xiaomi's customer service acknowledged the incident but did not provide specific measures or explanations following the report [5]