The weight limit for the iWALK3.0 is 275 pounds (approximately 125 kg, with a requirement that your upper thigh circumference is no more than 28 inches. It's important to also consider other factors, such as user height (between 4'10" and 6'6") and the ability to bend the injured leg 90 degrees, as these can affect suitability.
I bought it new, never used. Built it and decided that I would use other ambulatory device.
Cash only, thanks for looking