A couple of weeks back, Fitbit South Africa launched the Fitbit Charge HR with an amazing race type event at Gold Reef City in Joburg. Split into two teams, the collective of journos, bloggers and other partners had the opportunity to get firsthand understanding of the Fitbit, including difference in heart rate before and after rides like the Anaconda. Yes, heart rates did generally rise. Fitness and health is one of those areas that many a tech company has been exploring and the last two years have seen an explosion of apps, features and wearable devices all designed to help us track and...