Reduce Motion Sickness with iPhone's New Vehicle Motion Cues Feature
If you feel uncomfortable using your iPhone while riding in a car, try enabling Vehicle Motion Cues. This accessibility feature displays animated dots on the screen edges to help your brain track the vehicle's movement, potentially reducing motion sickness. You can customize the pattern, color, and visibility of these cues or let the iPhone automatically activate them when it detects you are in a moving vehicle.
Vehicle Motion Cues appear as animated dots on the edges of the screen that represent how the vehicle is moving without interfering with what you're doing on iPhone.