The best Bluetooth earphones for swimming are actually waterproof models with built-in storage, since Bluetooth signals don’t work properly underwater. Shokz OpenSwim Pro is a top choice, offering IP68 waterproofing, great comfort, and dual Bluetooth + MP3 modes. H2O Audio Tri 2 Pro is another excellent option for swimmers, with strong audio and reliable fit. Most use bone conduction technology, ensuring clear sound and safety during swimming sessions.