With its brand new iPhone 11 Pro, Apple has increased water resistance from previous models. 

An iPhone 11 Pro is now supposedly resistant in up to four meters of water for 30 minutes, compared to two meters for 30 minutes with an iPhone XS. But that doesn't mean you should go around submerging your iPhone in every liquid you find. 

Just because your iPhone might be water resistant under certain conditions doesn't mean it won't affect your device — continued exposure to water can still lead to damage over time, and other liquids like coffee or soda can also damage your phone. 

And if your iPhone does experience water damage, you're going to be left holding the bag. Apple's warranty does not cover water damage, so that one little drop that manages to find its way in may lead to hundreds of dollars less in your bank account.

If you think it's already too late and your phone has been damaged by water, here's how to check.

1. Remove your iPhone case and locate the SIM card tray, which will be on the right side of the phone, an inch or so below the side button.

2. Using a SIM tray removal tool or a straightened paper clip, press into the small hole at the bottom of the SIM tray and gently remove the tray.

3. Shine a light into the empty SIM slot and look for a red color (you may need a magnifying glass). 

If you see red … that's bad. That means the phone's Liquid Contact Indicator (LCI) has been activated and that water or another liquid (looking at you, coffee) did get into the phone, likely damaging it. Otherwise, you should see white or silver, and your phone is likely not damaged. 

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