Fitbit Flex 2 the most iconic tracker, more customisable than ever. Having the slimmest wristband released yet it also has added benefits of a removable tracker that fits into bands, bangles and pendants. Never worry about having to manually update an exercise tracker again as this will do all the hard work for you. - All Day activity tracking with automatic smart track - Swim proof with automatic tracking  - Automatic Sleep tracking - Reminders to move – Encouraging 250 Steps per hour  - Call & Text notifications - LED display  - Long Battery Life – Lasting up to 5 days