The Vivid i has held the top spot among used portable cardiac/vascular ultrasound machine(s) for sale. The Vivid i is the first new-generation portable ultrasound machine that provides great penetration, image quality, and stress echo capabilities, while also performing like a console-based cardiology machine. Its larger keyboard and overall superior user-interface provides better ease-of-use over other portable cardiac ultrasound machines in the market. It is a well-designed user interface, making it relatively easy to tap into its extensive of customizations, image controls, programmable keys, annotations and more. Triplex imaging capabilities also make this a good choice for phlebology and applications requiring realtime 2D, Spectral Doppler, and Color Imaging.