The Epson EB-S04 has a maximum resolution of SVGA (800x600). That's 39% less resolution than a XGA (1024x768) projector, which is the most frequently found resolution. Across all comparable spec multimedia projectors that are a similar age to the EB-S04 the resolution ranges from nHD (640x360) (worst) to DCI 4K (4096 x 2160) (best).
Alternative projectors that have a resolution of SVGA (800x600) currently available which you might also want to look at include the Canon LV-S300 which has a better Rating.
If you are looking for a projector with a higher resolution then you might want to consider the Optoma DX342 (XGA (1024x768 and higher rated) and higher rated).