assassin10000
Headphoneus Supremus
IP 68 rating on the waterproof model XTrainerZ means it's good for 1M depth. Without BT, you can seal things out much easier and better. I don't know anyone offering such a device.
My experience with "sweatproof" has not been good. My Jaybirds lasted 2 weeks and my Shure's lasted 3 days. The trouble is that the ions in sweat (Na+ & Cl-) form galvanic cells and short out the bits and pieces of the BT technology and battery. The trick is to always wipe down the device after use and even then some residue is left behind.
I sweat too much so I've gone back to wired IEM's for workouts.
Ouch. Yeah.
My Air-XR's are ipx7 and have been submerged in running water (fell out of my ear during testing lol). They're the only BT TWS that I trust to survive like that, at the moment. I'm sure there are others as well, I just don't have them (or have tried them).