1) An anodized aluminum top and polished stainless steel back. Six eye-catching colors. A larger, brighter display with the most pixels per inch of any Apple display, ever. iPod nano stirs up visual effects from the outside in. 2) And it’ll wow you for hours. Play up to 5 hours of video or up to 24 hours of audio on a single charge.1 All that staying power and a wafer-thin, 6.5-mm profile makes iPod nano one small big attraction.