A man views a HUAWEI's tri-fold smartphone during the 2025 Mobile World Congress in Barcelona, Spain, on March 3, 2025. The 2025 Mobile World Congress (MWC) opened here on Monday, bringing together industry leaders, policymakers, and technology innovators to explore advancements in 5G, artificial intelligence (AI), and advanced connectivity. (Xinhua/Zhao Dingzhe)