A surprising iPhone feature has gained attention among commuters who struggle with motion sickness — animated dots that appear to move across the edges of the screen while traveling.

The feature, called Vehicle Motion Cues, is designed to help reduce discomfort caused by looking at a phone while riding in a moving vehicle.

The setting creates a pattern of moving dots that match the motion of the vehicle. Using the phone’s built-in accelerometer, the dots adjust their movement based on changes in speed and direction, helping the brain better connect what the eyes see with what the body feels.

The idea behind the feature is that motion sickness often happens when there is a mismatch between visual signals and the body’s sense of movement. By adding visual cues that reflect the vehicle’s movement, the feature aims to reduce that conflict.

Many users have shared positive experiences with the setting, particularly during subway rides, car journeys, and other forms of transport. Some users say it has made using their phones while traveling much more comfortable.

However, reactions remain mixed, with some people finding the moving dots distracting or ineffective.

Despite the varied opinions, Vehicle Motion Cues has become an example of how small software changes can address everyday problems using existing smartphone technology.

For frequent travelers who experience motion sickness, the feature may be worth trying — especially during long journeys when checking a phone would normally trigger discomfort.