Learn how to turn on this feature in order to help relieve your motion sickness in a moving vehicle.
1.
From the Settings app, scroll to and tap Accessibility.
2.
Tap Motion.
3.
From this screen you can adjust multiple settings for motion-sensitive users:
Vehicle Motion Cues - Enabling this option will cause a series of dots to appear at the edges of the screen that follow the movement of a vehicle you're riding in. This can help reduce motion sickness.
Reduce Motion - Turn this toggle ON to reduce the motion effects and animations on the iPhone's screen.
Dim Flashing Lights - With this feature enabled, the iPhone will automatically dim any video content that depicts repeated flashing or strobing lights.
4.
You've completed the steps!
1.
From the Settings app, scroll to and tap Accessibility.