Working with health tech at Superpower, I've seen how features like Vehicle Motion Cues actually help with motion sickness. The trick is simple: little dots move on your screen to match the car's motion. It syncs what your eyes see with what your body feels, which can be a real relief. Similar sensor-based tricks are rare on Android, and while some third-party apps try, they usually feel less smooth.
I see kids get so anxious from motion sickness they'll skip family outings or school events. For us, a feature like Vehicle Motion Cues has been a big help. The visual cues on the screen help settle their stomachs and nerves, so they can stay calm in the car. Android doesn't have that built-in, so you have to find third-party apps, though those can be hit or miss.
In my practice as an electrician who installs vehicle electronics and tests in-car user interfaces, I see the same underlying problem that Vehicle Motion Cues tries to solve: sensory mismatch between what the inner ear feels and what the eyes see. The Vehicle Motion Cues are tiny, moving visual cues on the edges of the iPhone screen, which are a reflection of the movement of the car in real-time, and the movement of the visual representation lessens the conflict between the brain and the signals of the vestibular and the visual senses. The feature is made an Accessibility motion support and will activate when the iPhone is detected to be moving in a vehicle and it can be turned on or off in the Accessibility Motion setting, so that those who would rather have manual control of the device can do it. Clinical and user reports suggest that the synchronization of peripheral motion cues can reduce nausea in many passengers, as this provides the missing information the purpose of which is provided by the visual system. Android lacks a universal built-in counterpart of Google yet, third-party apps like KineStop and other motion sickness relief applications are similar in concept, and there are several how-to guides outlining these Android versions.