Group 1 - The core issue regarding foldable smartphones is their vulnerability to low temperatures, which can lead to screen damage or cracking when used in cold environments [2][4][6] - Many users are now aware of the precautions needed when using foldable phones in low temperatures, such as avoiding opening the device outdoors in extreme cold [2][7] - The normal operating temperature range for most foldable smartphones is between 0°C and 35°C, with performance and battery life being affected by extreme temperatures [2][4] Group 2 - The materials used in foldable screens, including flexible OLED and ultra-thin glass, can become brittle in low temperatures, increasing the risk of breakage [4][6] - Experts recommend keeping foldable phones warm by using insulated cases and storing them close to the body to avoid prolonged exposure to temperatures below -10°C [7] - According to IDC, the foldable smartphone market in China is projected to grow by 9.2% year-on-year, reaching approximately 10.01 million units by 2025, with Huawei holding a 71.8% market share [7]