(Telecompaper) Amazon has announced its entry into the personal health and wellness market with the launch of the Halo subscription service and app as well as the Halo Band wrist-worn activity tracker. Customers in the US can already request early access to Amazon Halo, with the Amazon Halo Band and 6 months of Halo membership available for a special price of USD 64.99 instead of the standard price of USD 99.99. The membership automatically renews for USD 3.99 per month after the initial 6 months.