Legacy. Hermann Ebbinghausâ lasting contributions to the field of psychology are multiple. In addition to being the first psychologist to study areas of human learning and memory, Ebbinghaus contributed greatly to the establishment of experimental psychology.
This includes dimming the display slightly, stopping Mail push and fetch, turning off background app refresh, turning off Hey Siri, and a few other iOS features. By turning these features off, the battery life of the iPhone is extended dramatically, and when Low Power Mode is enabled the iPhone battery icon is yellow to demonstrate this.
What does the red icon with a line through on Apple Watch mean? This one's caused some confusion, as it looks a lot light a battery indicator that's warning you that the battery is about to run out. What the red rectangle actually represents, though, is your iPhone, and the line through it means that you've become disconnected from that iPhone.