[helloindia]

I don't know about other manufacturers, but the latest Google Pixel 3a & 3a XL which comes with the 3.5mm jack, aren't waterproof.

https://www.teamandroid.com/2019/05/16/google-pixel-3a-water...

[detaro]

Yes, and other manufacturers make phones that are waterproof. Just one example: Motorola moto x4.