Written by: Jin Fujisaki / Published: 2026-02-19
For swimming earphones, the most important factor isn't sound quality — it's "durability." Until now, many waterproof earphones have failed, unable to withstand pool chlorine or prolonged submersion. But the "BoneAir Swim," developed by Doogee — a heavyweight in the rugged smartphone world — is in a different league.
Not only does it clear the highest IP68 waterproof and dustproof rating, it also employs a special titanium alloy and silicone coating that completely seamlessly fuses the joints of the housing. No matter how many hours you swim in a 2-meter-deep pool, water intrusion is physically shut out. Nothing is more stressful than using a gadget while worrying that "it might break." Doogee's engineering brings a sense of "absolute reassurance" right to your ears.
| 32GB of Built-In Memory. Leave Your Phone in the Locker
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Bluetooth signals don't penetrate water. In other words, it's impossible to swim while pairing with your phone for streaming playback. That's why the BoneAir Swim has built 32GB of large-capacity storage (an MP3 player function) into the unit itself.
You can transfer roughly 8,000 songs or podcasts directly via drag-and-drop from your PC. Leave your phone in the locker room and dive into the pool unencumbered. Operation is simple too — just press a physical button to start playback. The design eschews touch panels, which don't respond to wet fingers, in favor of reliable underwater operability — you can't help but nod and say, "they get it."
| A Dedicated Underwater Equalizer. Bone Conduction "Bass" Awakens
image Doogee
Structurally, bone conduction earphones have a weakness — bass tends to leak away. However, when the human skull and water as a medium combine, the way sound travels changes dramatically. The BoneAir Swim is equipped with a "Swimming Mode (Underwater EQ)" that has been thoroughly engineered around this "underwater resonance."
The moment you dive underwater, the previously thin bass roars through your head as deep, heavy low-end, enveloping you in overwhelming immersion as if you were on a club floor. Doing the crawl while beat-driven EDM plays is an addictive pleasure that triggers a "swimmer's high" — the aquatic counterpart to runner's high. "The boring task of just going back and forth between walls" transforms into the ultimate refresh time.
| Comfort On Land Too. The Benefits of Bluetooth 5.4
image Rakuten Ichiba
It looks like a swimming-only device, but on land it's also excellent as a regular Bluetooth earphone. It supports the latest Bluetooth 5.4, so once you climb out poolside and connect to your phone, you can enjoy Spotify or YouTube right away.
Because it's an open-ear type (not blocking your ears), you can clearly hear cars while running or announcements at the gym. It weighs just 29g. The titanium frame's moderate clamping force won't shift even during aggressive turns or butterfly strokes, and your temples won't ache even after wearing it for long stretches. As an "amphibious" sports earphone, it boasts an extremely high level of refinement.
| Summary: "Motivation to Swim" That You Can Buy in the 10,000-Yen Range
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The price is about 12,800 yen. Considering that competing high-end models from the likes of Shokz run from 20,000 to 30,000 yen, Doogee's price-destruction game remains as strong as ever.
You go to the pool, but somehow you can't keep it up. When you swim, all sorts of stray thoughts crowd in and you can't focus. If that's you, give BoneAir Swim a try — you have nothing to lose. Dive into the water with your favorite playlist, and you'll forget even the struggle of catching your breath; before you know it, you'll have swum a full kilometer more than usual.
