Hello Ant7800,
Thanks for using Apple Communities.
As any other electronics, when it fells or hit a hard surface it may damage the internal components. If your iPhone has no signs of accidental damage, it won't impact your warranty if a service is needed. But if the enclosure has any chips, or dents, the service strategy might have a cost. Anyway, just the time will say if it's ok.
With regards,
Alefe ****
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