The Sony Ericsson Z558i is the successor of the Z550i. The Z558i features the handwriting recognition functionality and it has a 1.9-inch 176×220 pixels TFT LCD display with 260k colors, 1.3 Megapixel camera with 4x digital zoom, MP3 player, FM Radio, 18MB memory and a Memory Stick Micro(M2) slot for expansion (up to 1GB). It is expected that there will be a special ‘Expresso Black’ edition release in Hong Kong in October.