Finalmouse ULX Pro Series vs Finalmouse UltralightX Competition

The Finalmouse UltralightX Competition and the Finalmouse ULX Pro Series are very similar, limited edition versions in the same lineup. Both versions have a composite carbon fiber body with weight-saving honeycomb cutouts on the top and bottom. The UltralightX Competition has solid sides while the ULX Pro Series has cutouts on its sides. The UltralightX Competition has a slightly higher-quality scroll wheel encoder and only comes in a dark gray colorway, while the ULX Pro Series has several two-tone colorway options. Unfortunately, both have somewhat inconsistent build quality. We experienced a mushy button feel on the ULX Pro Series we tested and noticeable flexibility, popping, and creaking in the body of the UltralightX Competition we tested.