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Head-to-head · Best Bone Conduction Headphones

Nank Runner Diver2 Pro vs Shokz OpenSwim Pro

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Nank Runner Diver2 Pro and Shokz OpenSwim Pro score essentially the same (4.4 vs 4.4). Pick the one whose trade-offs match your priorities — the strengths and watch-outs below are where they actually differ.

Nank Runner Diver2 Pro
Ranked #5 in Best Bone Conduction Headphones
Nank Runner Diver2 Pro
1 source$152.99as of Oct 11

The Nank Runner Diver2 Pro (from Naenka) is the most aggressively waterproofed pick here, with an IP69 rating that beats the IP68 of its rivals, plus 32GB storage and Bluetooth 5.4. TechRadar called it one of the best waterproof headphones available. Sound is the weak spot: very midrange-forward with little bass.

Strengths
  • — Class-leading IP69 waterproofing using nano coating and ultrasonic welding, the highest rating in this group
  • — 32GB onboard MP3 storage plus Bluetooth 5.4 for above-water streaming
  • — 35-degree adjustable ear hook switches between open-ear and a noise-canceling mode
Watch-outs
  • — Sound is heavily midrange-focused with rolled-off bass and treble; reviewers note minimal physicality
  • — Bulkier and thicker than Shokz's slimmer frames to fit the MP3 module
  • — Maximum volume tops out around 85 dB, which can be drowned out in noisy settings
$152.99 · Check Price on AmazonFull review →
Shokz OpenSwim Pro
Ranked #3 in Best Bone Conduction Headphones
Shokz OpenSwim Pro
2 sources$229.95as of Oct 11

The OpenSwim Pro is Shokz swimming-focused model that adds Bluetooth streaming alongside its existing 32GB onboard MP3 storage — a feature the original OpenSwim lacked. Trusted Reviews gave it 4.5/5, praising the dual-mode design for making swim-proof headphones genuinely useful on land too.

Strengths
  • — Dual-mode: Bluetooth streaming on land plus 32GB onboard MP3 storage for underwater playback
  • — IP68 rating with triple-sealed seams, submersible up to 2 meters
  • — Up to 9 hours of Bluetooth playback, with about 6 hours in MP3 mode
Watch-outs
  • — At $230 it is the most expensive option in this group
  • — Still uses a proprietary magnetic charger
  • — MP3 mode drains the battery faster than Bluetooth
$229.95 · Check Price on AmazonFull review →

How they stack up

Nank Runner Diver2 Pro

The most waterproof option here, with an IP69 rating that exceeds the IP68 Shokz OpenSwim Pro and Mojawa Run Plus, but its midrange-only sound is weaker than all of them, including the air-conduction Shokz OpenRun Pro 2.

Shokz OpenSwim Pro

The swimmer's pick: like the Mojawa Run Plus and Nank Runner Diver2 Pro it carries 32GB of onboard storage for underwater use, but its bass trails the air-conduction Shokz OpenRun Pro 2 and it costs more than the standard Shokz OpenRun.

Specs side-by-side

SpecNank Runner Diver2 ProShokz OpenSwim Pro
DriversBone conduction (3rd gen)Bone conduction (8th gen)
Battery10 hours9 hours Bluetooth / 6 hours MP3
ChargeMagnetic, 10 min = 1 hrProprietary magnetic, 10 min = 3 hr
Water ResistanceIP69 (submersible)IP68 (submersible to 2m)
Weight32g27.3g
Bluetooth5.4 + dual connection5.4 (above water)
Onboard Storage32GB MP332GB MP3
FrameTitanium bandTitanium band
Warranty1-year2-year
Material—Nickel-Titanium Alloy
← See the full ranking of best bone conduction headphones