Cook said that his biggest mistake during his tenure was Apple Maps. Cook, who is about to step down as Apple CEO in September, admitted at the meeting that his biggest mistake during his tenure was hastily releasing Apple Maps. According to user feedback and media reports at the time, this map application had serious functional defects, such as disappearing houses on the map and frequent positioning errors. This also led to Scott Forstall, who was then Steve Jobs' general and head of Apple's software department, resigning due to his primary responsibility for Apple Maps. But when it comes to his proudest masterpiece, it turns out to be the Apple Watch. He was touched when he received his first user email claiming that the Apple Watch had saved his life. So he believes that this is the best product of his tenure.