I have had every Apple Watch series and enjoyed them all. The Apple Watch Series 5 is the first one where I have trouble making it through the day without recharging the watch. I now keep a battery charger at work and in my briefcase.
I think this is because of the Always On display. I suppose I could turn this feature off but I don’t want to as it is the main reason I bought the Series 5.
I love the watch. I use it every day, especially for exercise. Still, this is a disappointment.