Is there a major difference in a smooth tuck to a tummy tuck?

I personally would not consider having surgery from a surgeon who uses gimmicky marketing names to rename common procedures like an abdominoplasty or a lipoabdominoplasty. I can assure you that every board certified plastic surgeon is capable of giving you a smooth tummy. The exact procedure that you will need will be dictated by your anatomy. 

Please choose your surgeon based on education, experience, and results, not on their ability to come up with a  gimmicky name to try to make their procedure sound different from everyone else's. 

Hello and thank you for your question.  There are numerous marketing names for what may actually be very similar types of tummy tuck procedures.  I would not select this based on the name of the procedure but place much more emphasis on the results shown by your surgeon.  If you are an appropriate candidate, a tummy tuck can be done through a low and short incision, all completely below the
bikini line.  Your muscles can also be
plicated resulting in a flat abdomen.  Make sure you
specifically look at before and after pictures of real patients who have
had this surgery performed by your surgeon and evaluate their results.  The
most important aspect is to find a surgeon you are comfortable with. I
recommend that you seek consultation with a qualified board-certified plastic
surgeon who can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

     The "smooth tuck" is simply a lipo-abdominoplasty as opposed to a traditional tummy tuck.  The lipo-abdominoplasty or smooth tuck removes fat from the upper and outer parts of the abdomen through liposuction and excises the area below the belly button, but there is no muscle repair.  In a traditional tummy tuck, the muscle separation is repaired and the upper and lower abdomen are tightened through tissue excision.  Both are good procedures but determining which is best for you is the most important choice.  It is good to get a few opinions to be sure that you are getting a fair assessment.  Good luck and see a board-certified plastic surgeon.