Eli5: How are phones waterproof even though the charging port terminals can be exposed to water and not short circuit them?

Question

Eli5: How are phones waterproof even though the charging port terminals can be exposed to water and not short circuit them?

In: 4320

Answer 1

The ports are insulated and covered in hydrophobic material (material that naturally repels water). Also, charging ports could still short in that situation so many phones have sensors that stop the port from accepting electricity if moisture is detected inside the port.