The highest resolution of the Acer X125H is XGA (1024x768). That's 62% less resolution than the most frequently found native projector resolution of 1080p (1920x1080). Across all multimedia projectors that were launched around the same time as the X125H the worst resolution is SVGA (800x600) and the best is WUXGA (1920x1200).
There are a number of alternative projectors that have a resolution of XGA (1024x768) currently available which you might want to look at including the Viewsonic PJD6250L ($394.99) which is cheaper.
If you would prefer a projector with a higher resolution then you might want to look at the H183X ($467.34) (WXGA (1280x800)), or the H114 (WXGA (1280x800)) both from Optoma which is also higher rated.