... 3. Android 2.24. WIFI,GPS5. 512 RAM, 4GB HDD The flytouch 4 's difference from flytouch 3 : 1. ... Android 2.2 ROM: 4GB (Upgradable to 8-32GB) External Memory: Supports up to 32GB MicroSD Cards Display: 1024×600 ... Support Micro SD / T-Flash, Max 32GBI/O Ports:USB2.0 host x2, 3.5mm audio jack, DC in, TF ... PMP,MPEG, MPG, FLV, 3GP, MPG, H.264, etc.E-Book Reader:Support WORD, EXCEL, POWERPOINT, PDF, TXT, etc ...