The Fitbit Inspire HR sounds like the successor... waterproof sleep and step tracker. Lasts a week on a charge, slim design. Costs twice as much though. https:

The Fitbit Inspire HR sounds like the successor... waterproof sleep and step tracker. Lasts a week on a charge, slim design. Costs twice as much though. https://www.fitbit.com/inspire https://www.fitbit.com/inspire