1.resistive touch screen; 2.7 inch resistive touch screen; 3.7 inch UVI 8902 Resistive screen,256DDR,Android 2.3,8GB flash ... Reader, ireaderTextPDF,TXT,CHM,DOC,EXCEL,etcPohotoJPEG,BMP,GIF,PNG,TIFFPortUSB,3G,EVDO,USB2.0weight0.4kgcolorblack,white,silverysize192mm*121mm*12.37mm 7 inch ...