Pentax Optio S4i 4MP Digital Camera with 3x Optical Zoom 4-megapixel sensor captures enough detail to create photo-quality 11-by-14-inch enlargements Pentax 3x optical zoom combines with a 4x digital zoom for a 12x combined zoom 7 picture modes; 1.8-inch color LCD display; movie mode with sound Store images in 12 MB internal memory or on optional Secure Digital memory cards (memory card not included) Powered by lithium-ion rechargeable battery (included with charger)