The Optoma S331 projector is brilliant for the mobile presenter with an HDMI connection. The basic SVGA resolution is perfect for presenting text and simple graphics. I would not recommend it for movies as the image will not be as clear.
The Optoma projector has a good lamp life of 10,000 hours in Eco mode. The brilliant contrast ratio means the Optoma S331 will show even the darker images in more detail. It will produce radiant colors due to the brightness of this projector; it will be able to cope with bright rooms so you will not have to worry about closing the curtains or turning the lights off.
This projector has two HDMI inputs which are great as you can connect to two HD sources at the same time without swapping cables around. It features MHL so you can show your content in high definition from a mobile device. As a low-cost projector, this is ideal for simple PowerPoint presentations and simple images but not much more than that. To help save energy, the “Auto Power Off” feature automatically turns off the projector after a set period of time if it is not being used.
Accurate colours – sRGB
Throw Ratio 1.94-2.16
Resolution Native SVGA 800 x 600
Mode Brightness 3200 lm
Maximum Focal Length 24.01 mm
Diagonal Image Size 7.73 m (304.40″)
Ports Inputs 1 x HDMI 1.4a 3D support + MHL, 1 x HDMI 1.4a 3D support
Optical Zoom 1.1x