Got these recently for the gym and hiking about two months ago. The $30/pair ones. so far they work well, the fidelity isn't quite as good as my Airpod Pros, but that's fine for my purposes. They don't fall out of my ears when I'm lifting, waterproof, so light I forget I'm wearing them, very comfortable even after a couple hours of continuous wearing, and fairly sturdy, considering.
Total operation time isn't as long as my other earbuds, but still more than 3 hours, so good enough. Twice they didn't work correctly when trying to answer phonecalls, but the other half-dozen or so times they did.
Another thing I bought them for was to be able to hear people without having to take an earbud out of my ear, and that's worked exactly as I hoped.
Haven't actually tried swimming with them, but I don't foresee actually wanting to do that. But I did accidentally wear them in the shower a couple weeks ago, and that didn't bother them at all.
Overall, I'd give them 4 out of 5 stars.
https://www.amazon.com/Conduction-He...7&sr=1-20&th=1