The older brother to the Rival 100, the Rival 110 boasts quite a few upgrades. From the shell having a nice new grip texture, the revamped buttons, and the new lighting options, everything just functions better than it did in the 100. But the real difference here is the sensor. Compared to the Rival 100’s sensor, the 110 takes advantage of SteelSeries proprietary “TrueMove 1 Optical” sensor. The sensor performs extremely well under all circumstances, has no issues spinning out, stable polling rate, and very good responsiveness. As for the software, you can customize DPI, macros, polling rate and much more through the SteelSeries drivers.