I have a Cat S60 with a headphone jack and last night it sat in my pocket in a hot tub for 3 hours and still works fine. Granted, I don't know if I can have headphones plugged in in the water.
I'm due for a new phone anyway, which is why I chanced it, but this thing is tank-like. All the ports have aluminum-backed rubber flaps that seal when not in use and the speaker and mic close with little "5 meter" switches.
I've had it since 2016 and put it through some serious drops and stresses and it's held up really well. The one complaint was that the "carbon fiber" finish on the back started peeling off after about 6 months.