Have been looking at these on display, and been surprised how much less bright the S4 is compared to the One (and surprisingly, to my aging Galaxy Nexus). And these display models were already set on max brightness. I was using the Play Store main page for comparison. Put them side by side and the difference is huge. I don't see how folks insist theirs are super bright.
Last night with only a 100w bulb litin the room, I blinded my friends with max brightness.
On auto inside it is a drop dim, but easily usable.
Outside on auto, it works great and is more like max brightness.
Due to low reflectivity, the S4 is easier to use in bright sun as compared to the One...could be the gorilla 3 vs 2 on the One.
Sent from my S4 using motion gestures!!!