just had a week w/ my nano 6th gen as a watch
maganda siya kase andaming cheap straps sa net, pwede ka mag leather (formal) and rubber (bagets)
ang problem lang is it goes to sleep after every minute (para makatipid ng battery) so kelangan mo " wake " everytime na titingin ka ng oras
gasgasin siya at madaling ma chip kaya bilhan nyo agad ng casing and protector pagkabili