I have been using a TomTom Spark for a couple of years training for triathlons. I think its a great watch as it quickly finds the gps, it works great for all the three segments even though swimming doesnt give distance when swimming in open water. I understand the difficulty with gps in the water but it would be great if the watch could use the history of your swimming strokes and calculate an approx distance. In short i'm really happy with my spark. Now i was thinking that i get a new one but not sure if i go for the spark 3 or the adventurer. Spark i know so i guess same same with some added functions, but anyone here using Adventurer training running, cycling and swimming with the odd gym pass in between that see great benefits over the spark?