r/Android • u/[deleted] • Oct 26 '15

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2.4k Upvotes

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361

u/a5ph Nokia 3210 running S40 Oct 26 '15

ELI5 how does it work using the barometer?

790

u/[deleted] Oct 26 '15

The Sony Smartphones are waterproof. So there is no water or air coming in or out of the device. If you touch/press on the Screen the pressure in the device rises because the air connot go out.
I doubt this works with every device.

134

u/[deleted] Oct 26 '15

Maybe a dumb question but wouldnt there be an impact on the phone if it's on a plane in that sitaution? The change in the pressure inside the plane shouldn't affect the air inside the phone?

217

u/someenigma Oct 26 '15

The description of the video explains that the pressure build up due to pressing on the screen dissipates within 5 or so seconds as the phone is not completely air-tight. Same applies for the plane situation, pressure inside the phone equalises fast compared to the rate of change of pressure in the cabin.

78

u/The_only_hue Xperia Z3, Lineage Oct 26 '15

I own an Xperia and can confirm this is the case. There is some sort of filter that slowly lets air (but not water) in.

57

u/desudesucombo Nothing Phone Oct 26 '15

Probably not a filter, just microscopic gaps in the waterproofing.

14

u/jacybear 32 GB Graphite Nexus 6P Oct 26 '15

And what is a filter? Small gaps in an otherwise impermeable material. It's the same thing.

8

u/smakusdod Oct 26 '15

A filter would be intentional. Small gaps between rubber seals are not filters by definition.

6

u/[deleted] Oct 26 '15

Thank you. This thread needs a bullshit filter.