Stop bringing your phone in the shower: How steam can ruin 'waterproof' phones

The 30-second read

Mobile device manufacturers advise against exposing smartphones to high-temperature steam during bathroom routines. While many handsets carry water-resistance ratings, these standards do not account for vapor penetration that can bypass internal seals.

• 01Standard IP waterproof ratings only certify protection against liquid submersion not high-temperature steam
• 02Steam molecules are smaller than water droplets and can infiltrate internal device components more easily
• 03Thermal expansion from heat may temporarily weaken adhesive seals intended to prevent moisture ingress
• 04Direct manufacturer guidance explicitly warns against using mobile devices in high-humidity shower environments

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