[Exmoor]

I've had this issue with my Samsung Note 20 Ultra, but not from motorcycles. I run a couple thousand miles a year and about 6 months ago I noticed my camera would come up out of focus. If I tap the phone fairly hard it will usually come back in focus eventually, but its super annoying. I've started carrying my phone in a pocket on my outer thigh where it should get less impact, rather than a loose zippered pocket of my shorts, but the damage is done to this one. Hopefully my next phone does better.

[saiya-jin]

S22 ultra here, when I shake my phone there is something rattling, I always assumed it was some part of lenses, since they have some advanced stuff like periscopes and maybe for some good reason some part is not tightly held as the rest. Otherwise there shouldn't be a thing moving in the phone.

As long as it keeps working no concern, and it works fine, focus is quick. But yeah I won't be mounting it on motorcycle (or mountain bike) anytime soon

[londons_explore]

Most phone cameras rattle while the camera is off. If you turn the main camera on, then it normally stops the rattle temporarily, since the rattling lens assembly is now held in place electromagnetically.

[saiya-jin]

True, tried turning it on and with 10x zoom it stops, just as expected periscope is the culprit. Learned something today, thank you

[Kirby64]

Any phone with OIS or AF will rattle if you shake it hard enough. It's just the springs of the lens assembly hitting the endstops of travel. Shouldn't damage anything unless you really hit it quite hard (or, repeatedly, as a motorcycle would). I've also noticed you can sometimes get rattling from buttons on a phone too. Could also be that.

[kbar13]

kinda crazy to think about what that means for your knees when you run. be safe.

[jwhiles]

Knees aren't phone cameras

[Unfrozen0688]

Humans are built to run long distance.

[mrguyorama]

The important point here is long distance on soft ground.

Don't run on a road or asphalt path or other hard surfaces. Your knees are NOT built for that, at least not without degradation you will regret in a few decades.