I think HerrRiebmann is wrong on this, or he misunderstood the question.
Sounds like this is your first tri. If so, I would offer a little different advice from the above 2 "masters."
My advice: stick with the VA3 for now and not spend big $ for watch feature that you may only use 1 day of the year.
How was the app? Thit it work well? Do you see your gps track?