I haven't read the rules in a while and I know they change. I don't think you're understanding the rule correctly. It most likely reads that you can't wear a smart device that can receive messages. Since Most GPS watches connect to your phone and allow you to read texts and stuff, it would make the watch forbidden. Additionally, the official isn't an expert on every GPS watch so she's not going to allow you to wear your gamin 645 just for the fact that she can't waste time determining which watch has smart features. It's cross country. What's this nonsense about pacing? Run the race. Nab places. You don't get scored on time.