For those of you with both a Series 5 and a Series 6, how are you finding the always-on to be much brighter on the Series 6? Apple says it's 2.5x brighter but most Youtube comparison videos I've watched showed hardly any difference...but, none of them did this comparison outdoors in the sunlight and I suspect that's where you're going to see the difference...not indoors. Can somebody confirm? Also, one reviewer noted that the always-on was noticeably brighter during workouts.