Why has Garmin designed the 735 to Update (whatever that means) while an Activity is running when it comes near your phone. I was runnig a track workout the other day and had my phone on the ground near the start and when I completed my interval and went to hit the Lap button, I looked at my watch to see "Updating...." and missed the interval Lap because of it and in addition it caused a disconnect of my BSX Insight and locked it up so I did not get any useful SMO2 data either due to this.
Why in the world would the watch be syncing, or updating anything while an activity is running????? I know I can turn off BT, which I did at that point, but I should not have to do that.