iPhone 14 Pro. I slapped the Apple silicone case on it on day one. Will the phone sustain damage from grit or whatever if I don’t take the case off regularly and clean everything? Can I leave the case on for three years straight without worries?
This is my first iPhone with stainless steel sides.
I'd clean it regularly.
Sand and dust can be very abrasive, and unless you can eliminate its ingress entirely (almost impossible to do), there's always that risk.
Some contaminants are more abrasive than others.
I live in a mountain/desert environment with abundant wind, so I have to keep after that stuff continuously.
I take the phone out of the case weekly and clean both thoroughly.
That said, I'd think that softer material cases are safer in this regard than hard material cases simply because dragging the phone out of a hard case is more likely to scratch the finish than a soft case would.