The Logitech G502 X modernized the legendary G502 at 89 grams wired with the HERO 25K sensor and Lightforce hybrid optical-mechanical switches. It shed over 30 grams from the G502 HERO while maintaining the iconic shape, free-spinning scroll wheel, and feature set that made the G502 the best-selling gaming mouse in history. Lightforce switches combined optical speed with mechanical feel. At 89 grams, the G502 X made the beloved shape competitive with modern lightweight standards for the first time. The DPI shift button and programmable thumb buttons carried over from previous generations. It finally addressed the weight complaints without sacrificing the G502's identity.