According to Wallstreetcn, video creator Tim said Apple’s first foldable phone, iPhone Duo, had controllable body temperatures in daily use, but the area below the camera became noticeably hot during video recording and heavy-load operation, which he described as one of the hottest phones he has reviewed. He also said that on Apple’s launch day, he bent the unfolded device backward during testing and found no abnormality at the scene, while a review of the video showed the external screen was already flickering at the time. Apple customer service said iPhone Duo has not yet started pre-sales in mainland China, that a single-device test by an online blogger is one-sided, and that consumers are advised to try the product in stores after its official release. On the heating issue, customer service said new devices may need a three- to five-day adaptation period after purchase, and hardware-related heating problems can be checked and handled by the technical team and offline stores.