Making its return is the inclusion of Logitech’s wireless LIGHTSPEED technology, Hero 25K sensor, and PowerPlay support. The two mice share several key components and similar designs, and can even be found for similar prices $120 for the older G502 Lightspeed, and $140 for the G502 X Lightspeed. Special features: LIGHTFORCE hybrid optical-mechanical switches, 5 onboard memory profiles, low friction PTFE feet, constant motionĪ refinement of the 2019 G502 Lightspeed, the G502 X Lightspeed is more of an internal upgrade.Connectivity: Wired (USB-C to USB-A cable), 2.4Ghz LIGHTSPEED wireless (USB-A Receiver).