No, not when you ask the question in this manner. Saints are the men, women, and children who have died and are now in Heaven. The term “Saved” when used by Protestants, refers to those who are going to Heaven when they die, but you specified “a saved person in heaven.” So, no… there is no difference.
There is no difference (or distinction) in heaven. The process of canonization is not for the Saints in heaven, but for us on earth.
The only difference is that, in the case of the canonized Saint, we on earth have the assurance of the Church that this person is, indeed, sharing in the Beatific Vision in heaven.
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