It’s also very hard to make them resistant to water and dust, I really like that I can wash my iPhone in the sink and don’t have to worry about it getting wet in general. This is a lot harder to achieve with battery doors, especially if they need to be as big as a phone back.
Completely untrue and debunked ad nauseum.
Rugged phones with removable batteries has vastly superior IP ratings. Glues go bad faster than O-rings used in removable batteries do.
I've had water intrusion with an iPhone, and it drove a sales of a new display panel from myself. Not so much with an actual rugged phone.