What is the high-frequency range that we can be considered dangerous? 20Hz? 50Hz?

Hello to everybody

I had an iPhone 7, always attached on my motorbike and i didn't have any issue with the camera, but now I have iPhone 13 mini and i am worried about this could be a problem, and i have tested the vibration on my iPhone 13 mini attached on my motorbike ( 125cc ) in the same position as my iphone 7 was, and i see only 0.02~0.10g at ~20Hz and some 0.004g at 40Hz~50Hz it could be dangerous to my iPhone? or maybe these numbers are considered normal, because i can duplicate this number by shaking the iPhone with my hands...

Thank's you all

(sorry for my English i'm Spanish)