H Band 2.0 is your companion app for your smart accessories. The easy synchronization with your smart watch allows you to track all your activities. H Band 2.0 creates a data history for you, so even after weeks you have a detailed overview over your past exercises H Band 2.0 is your companion app for your smart accessories. The easy synchronization with your smart watch allows you to track all your activities. H Band 2.0 creates a data history for you, so even after weeks you have a detailed overview over your past exercises