Our research includes 139 expert total reviews for 12 best computer mice under $50. The highest average score is 89%, while the lowest is 77% (a gap of 12%). There are about 12 reviews per product. Reviews come from sites like PCMag, Wired, and more. Click on a product to see more information (including which reviews were included). This list gets updated every few days as we routinely add the latest products.