Brightline is one of the stock ringtones credited to Samsung and bundled with the Galaxy S25 series, Samsung's flagship Android phones released in 2025. Like earlier Galaxy tones, it was designed to be short, bright and recognisable in a noisy room without sounding harsh. As clips of new Galaxy phones spread on social media, the tone moved beyond owners of the device and began appearing in edits, unboxings and phone themed memes. It remains popular because listeners identify the Samsung sound instantly, even in a very short clip.