FUE stands for Follicular Unit Extraction
This method of extracting donor hair for transplantation requires a surgical instrument to make small, circular incisions in the skin surrounding a singular follicular unit, separating it from the adjoining tissue. The unit is then extracted (pulled) directly from the scalp, leaving a small open hole.
It is far more time consuming and costly than FUT simply by the very nature of the process.
I believe it would be fair to say that if you are looking to have surgery and not end up with any kind of scarring then you are not a candidate for FUE or FUT. To state that FUE does not result in any scarring is simply incorrect. FUE will leave little white dots across the back of your head. The only difference is that the FUE does not cause a single linear scar and therefore is harder to detect when you have very short hair.
FUT stands for Follicular Unit Transplantation
Follicular Unit Transplantation is a technique, where the hair is harvested from the area at the back of the scalp in a single strip. FUT is sometimes referred to as the Strip Method. It will leave a hairline scare which will only be visible if the hair is cut very short.
FUT and FUE are really complimentary forms of hair transplant surgery, not competing methods of which one must make a choice. Often, the more established clinics will offer a combination of both types of surgery.
If you need a large area of your scalp covered and money is of primary concern, then you are best advised to opt for FUT because it offers the best value for money.