I use this watch for a few months and I am fully satisfied. Two days of autonomy without turning it off and almost three by turning it off at night, it is more than enough for someone who comes home every night :-) Features are very practical, I almost go over my phone from my pocket except to call ... The ones I use daily are reading mails / SMS / MMS / WhatsApp, rapid responses to SMS / MMS / WhatsApp, control music, calendar alerts, monitoring travel times of the refusal calls and read the time ...: D The one I use regularly are reading notes, to consult my bank balances.