I loved by Garmin 935 but the 945 takes it to a new level with more performance and health analytics, maps, swim wrist heart rate, and more. It's light too, barely aware it's on my wrist when running.
Battery life is great and will easily last for a full 140.6 mile triathlon.
I had read this was the best multisport watch on the market, I believe it!
I really like this watch. I use the running, strength, cycling, hiking and walking widgets regularly. I am very impressed with the accuracy of the watch including the heart rate monitor (not sure about the heart rate during a strength exercise is completely accurate yet). It is very comfortable and the right size for easy visuals. The strength training app counts reps fairly accurately if the reps are done properly, and makes it very easy to correct the miscounted reps if necessary. I'm glad I purchased the Forerunner 945.