Our research includes 8 expert total reviews for 2 best projectors under $400. The highest average score is 88%, while the lowest is 78% (a gap of 10%). There are about 4 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.