Screen resolution - 480 * 272 * Size: 112.6mm（L）×75.2mm（W）×13.6mm（H） * Battery Life: Music - up to 10 hours; video - up to 4.5 hours * Music / Video / Game / Text Reader / Photo Playback * Replaceable battery - You can use Nokia Nokia BL-5C Battery to replace the factory battery if needed. Amazon has those available