The Sony Ericsson Z550 was announced in 2006, May With 1.9 inches, 30 x 37 mm, 11.4 cm2 (~28.6% screen-to-body ratio) TFT, 256K colors, Its 1.3 MP rear camera captured crisp photos and QCIF video, while the Removable Li-Ion 750 mAh battery ensured long-lasting usage.