Smartwatch pioneer Pebble's been plugging away, not just in creating the latest version of the Pebble 2 and Pebble Time 2, but also refining their software. I recently updated my Pebble Time to version 4.0 and now get more granular and better presented fitness and sleep tracking information as well as some useful and encouraging notifications during the day.
Pressing up the Pebble’s watch face surfaces a daily summary of the number of steps you’ve taken and the quality of your most recent sleep session. It allows you to view trends over the course of weeks. The companion app for Android is also much improved. In terms of apps. a new Optimised for 4.0 category in Pebble's App Store will curate what's been updated for the new OS.
Source: Pebble