The Ascent X Series is Vitamix’s premium blender line. Its reimagined design combines an intuitive touch interface with a sophisticated, timeless look that feels at home in any home. It’s the best in blending, enhanced by customer feedback and updated for the modern kitchen. Ascent X4 features a 48-ounce container, an automatic Self-Cleaning Program, and five Blending Programs. Add SELF-DETECT containers and attachments to build a customized blending system designed to fit your needs.