Core Viewpoint - The introduction of the iPhone Air has sparked a trend in the smartphone industry towards lightweight designs, despite lacking significant performance upgrades or new imaging systems [1][3][11]. Group 1: Market Response - The term "Air" has revitalized discussions around lightweight smartphones, prompting major manufacturers like Huawei, Xiaomi, OPPO, and Vivo to develop their own versions [2][3][10]. - The shift towards lightweight designs is a response to consumer preferences, with over 70% of users indicating that performance is sufficient, while weight and feel are critical factors in their purchasing decisions [4][12]. Group 2: Challenges Faced - Despite the hype, lightweight models like the iPhone Air and Samsung Galaxy S25 Edge have not met sales expectations, facing criticism for compromised features such as battery life and audio quality [7][8][14]. - The iPhone Air's design sacrifices battery capacity and speaker quality, leading to a less complete user experience, which has resulted in a delay in production for subsequent batches [7][14]. Group 3: Future Outlook - The lightweight trend is seen as a potential design revolution, with advancements in technology such as silicon-carbon batteries and titanium frames offering new solutions for achieving meaningful lightweight designs [16][18]. - The industry may see 2026 as a pivotal year for lightweight flagship models, as the goal shifts from merely achieving thinness to integrating lightweight features across all devices [18].