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Anyone have any feedback after their first day with OS4?

Unfortunately battery life is really bad - at the moment my watch dies after 12 hours without training or something else. I only got some notifications and of course I have checked the time during the day.
 
It's terribly bad for me too. Mine was 100% at 7:30 this morning and by 10:30 it's down to 80% doing nothing more than wearing on my wrist on my drive to work.
 
Mines fine so far, I only have notifications on mine and after work I use it in the Gym, took it off the charger this morning at 8am with 100%, its now 11:22 am and still on 100%, i've even been playing about with some of the watch features today also
 
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