SLink is a free Android application designed to seamlessly connect smartphones with vehicle navigation systems. It allows users to search and set destinations via their smartphones before starting their vehicles, eliminating the need to wait for navigation boot-up. With features like Google voice search, users can easily save and access their favorite locations on both their smartphones and navigation systems. Additionally, SLink supports multimedia playback, enabling access to music, videos, and photos directly from the vehicle's navigation screen, enhancing the in-car experience.

The application includes various functionalities such as Smart Search for destination setup, Smart Music and Smart Movie for media playback, and Smart Gallery for photo viewing. Users receive notifications for messages, calls, and calendar events directly on their navigation screens, with TTS (text-to-speech) support for hands-free operation. SLink also offers a Privacy Mode for discreet usage, ensuring that users can enjoy their smartphone features while driving without distractions.