Core Viewpoint - Wang Teng, the founder of Today Sleep Technology, has publicly switched to using an iPhone 17 for better compatibility with sleep monitoring devices, marking his first use of a non-Xiaomi phone since leaving the company in September 2025 [1] Group 1: Company Transition - Wang Teng previously served as the General Manager of Xiaomi's China Marketing Department and General Manager of the REDMI brand before founding Today Sleep Technology [1] - The company, Today Sleep Technology, was established in January 2026 and has completed seed round financing of several million yuan [1] Group 2: Product and Market Insights - Wang Teng highlighted that sleep is a complex system requiring multifaceted improvements, sharing his sleep data from the past six months [1] - The switch to iPhone 17 was specifically due to better adaptation with sleep monitoring devices such as Whoop, Oura, and Eight Sleep [1]