For me, unless I’m getting a week it doesn’t matter whether I get a full day or two days. I’m used to topping it off once or maybe twice a day and if I know I’m going to be gone for several days I bring a charger with me.
I personally think it sucks to have to charge your watch let alone once but twice a day. That’s why they should have left the battery the same size so everyone can get at least one day out of it.