A week in to wearing the watch, and I'm the dummy who just noticed the gradient faces transition throughout the hour just like the two-tone style faces.
I'm not getting fantastic battery life with my series 5, but I do use the workout app for 75+ minutes/day. When I can jog outside, I'm leaving my phone behind and using the LTE for music or podcasts. I also sleep with the watch on so I can take advantage of the AutoSleep app. I keep the charging stand on the desk in my home office and I usually let the watch charge up for half an hour or so ( it's usually anywhere from 50-60% battery life at that point) mid-morning when I'm focused on spreadsheets and other work that requires seated concentration. When I hop in the shower at night after my workout, it's usually down to 30-40% and I let it charge then too. So, it's about 12 hours between short charging sessions.
I think if I timed it exactly right, I could probably get a full 24 hours of activity between charges but right now I'm fine with charging it periodically during the day.