I don't think they do. I think that has been clever branding by A&H and a few other companies so that officials feel they have the same gear as the Premier League guys (as the Limit and V800 look quite similar!). There's about a £300 difference between the two!I thought I saw some wear a Limit Watch?
Yes, you can customise the sport profiles, which display when exercising/timing, to show whatever you like. Heart Rate, Distance, Time, etc.is this v800 a watch as well as a HRM?