The battery lasts super long, there are now 14 days since the first charge passed and there are still 75% battery left.
About calls and messages (Apps to any configure, FB, WA, email ...) will be notified by vibration, which is quite handy if you did not permanently his smartphone in your pocket, or even completely silent (no Virbation). Everything else, such as a display ala SmartWatch are not interesting for me personally, as I reach for reasons of comfort to write or lose out, as well as the smartphone.
For more details, I can only recommend to me, getting on Google several tests, because there are some mitlerweile, and a fully translated in German app and forums!
