Why this answer matters
A refresh-rate measurement below 120 Hz does not by itself prove a display fault. Content, power state, animation and the adaptive controller can change the instantaneous rate.
Requirements
What has to be true
- iPhone 13 Pro rather than the non-Pro iPhone 13.
Verify it yourself
Use this test sequence
Change one variable at a time so you know which requirement made the difference.
- 1
Confirm exact model.
- 2
Use motion/refresh references rather than assuming every static screen runs at the maximum.
- 3
If motion visibly stutters everywhere, compare system settings and restart before treating the panel as defective.
Limits
What this answer does not prove
- 120 Hz is the supported maximum, not a fixed always-on value.
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