There are some water-resistant phones with a headphone jack and an IP68 rating even. The LG V30 for example is a beast. Semi-regular usage on rainy days works without any issues. Even using it as a flashlight it survived 30min of pouring rain. I had to wait for the USB-C port to dry up to charge it after getting home, but it still survived without any damage whatsoever.
Other phones that are both water-resistant and have a jack [1]:
* Pixel 3a
* Galaxy S10
* Huawei P30
* and a lot more
If I remember correctly, Apple tried to justify its removal due to its size and water-resistance. I wonder when (not if) Apple will remove the power plug due to "water-resistance" and insist on using Qi charging (even though it has worse efficiency[2]) and cloud services instead of transferring data via cable.
[1]: https://www.androidauthority.com/phones-with-headphone-jack-...
[2]: https://www.wirelesspowerconsortium.com/data/downloadables/1...
Sorry, you can't have IP67 water resistance with that 3.5mm headphone jack.
Edit: a lot of folks proved me wrong. I feel that I need to clarify: Apple's design goal is to make it thiner, more integrated, less components more battery space and unified input/output interface, all that combined with water resistance, is not practical. All the 3.5mm examples I am seeing doesn't attempt to make it thin and light albeit water resistant.