Compatible with most smartphones, supporting devices with 4 to 7 inch screens. Unlike traditional vacuum suction holders, the car electric suction cup vacuum magnetic phone holder offers more viewing angle options to fit your preferred setup. Easy one-step operation: push to activate suction, then release pressure with a single button to remove it quickly. Magnetic cell phone holder for car combines intelligent vacuum technology and magnetic attraction to secure your phone, delivering stable performance even on bumpy roads. Key benefits and features - Function: vacuum suction plus magnetic mounting for secure, hands-free use - Compatibility: suitable for most smartphones with 4-7 inch displays - Size range: supports phones within the 4-7 inch screen size - Performance: stable hold on varied driving surfaces through intelligent vacuum and magnetic alignment 2-3 practical use scenarios - Daily commute with GPS navigation: keep your phone at the optimal angle for easy map viewing and turn-by-turn directions - Hands-free calls and voice assistants: safe, convenient access for calling and voice queries while driving - Rideshare or delivery use: reliable mounting for quick access to navigation, messages, and notifications during trips Note: This description preserves the original product functions and capabilities, including the electric vacuum suction and magnetic holding mechanisms designed to improve stability and viewing angle compared with traditional suction holders.