I wouldn't worry about heat maps. They dont tell you anything either as every game is different so where you spend most of your time is dictated by the game rather than being in a set place.I use a v800, doesn't really help to see your positioning as it just ends up looking like a big bowl of spaghetti.
I've been looking for a way to convert the gps tracking from my games into heat maps, which would show where you're spending the majority of the time, and should give a better idea of your patrol path.
Hi , what is this app called please , I have the Vivoactive . ThanksI have the Garmin vivoactive, and really like it. There is a Ref Watch ap for it (I think it cost 5 pounds or Euros or something like that), which tracks time up and down (you choose which is bigger), vibrates for full time and every 30 seconds after. It also has a stop button track stoppage--which vibrates periodically so you don't forget to to restart it. Easy to set for different game lengths, extra time. It tracks mileage during games. It is not used for tracking game events (different people have different views on that--that part of those watch functions always seemed to me a solution searching for a problem--I can write it much faster than I can mess with a phone). It will give you a map of where you ran during the game on top of a satellite image, but it is not a heat map.
I have written one called hReferee for all Garmin devices. Happy to take any feature requests.Referee Watch.
As I recall, there is a free version, but you really need to buy the full version to be have all the options. I think it was about 5 punds when I got it.