Head-to-head · Best Bone Conduction Headphones

Nank Runner Diver2 Pro vs Shokz OpenRun

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

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.

The short answer

Nank Runner Diver2 Pro comes out ahead by a narrow margin (4.0 vs 3.7). The gap is mostly about Open-water swimmers and divers who prioritize maximum waterproofing and onboard storage over sound quality. — read the strengths below before deciding.

Higher ratedRanked #4 in Best Bone Conduction Headphones

Nank Runner Diver2 Pro

4.0

3 sources1 derived$107.99as of Aug 1

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. Soundphile Review scored it 7/10 and 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
— Instrument separation suffers due to the bone-conduction approach

$107.99 · Check Price on Amazon Full review →

Ranked #5 in Best Bone Conduction Headphones

Shokz OpenRun

3.7

3 sources1 derived$129.95as of Aug 1

The plain OpenRun is the cheapest current Shokz and the one that trades features for toughness. SoundGuys rates it 7 out of 10, RTINGS and Believe in the Run both 4 out of 5, and all three land in the same place: a 26-gram titanium band that disappears on a run, full situational awareness, and thin bass. Against the OpenRun Pro 2 you give up the air-conduction driver and USB-C charging, and gain an IP67 rating the pricier model does not have.

Strengths

— IP67 rating means full sweat and dust resistance, more robust than the pricier OpenRun Pro 2's IP55
— Light 26g titanium frame that reviewers say disappears during long runs
— 8-hour battery with a 10-minute quick charge giving 1.5 hours of playback

Watch-outs

— Single bone-conduction driver with no air-conduction speaker, so bass is thin
— Proprietary magnetic charging connector instead of USB-C
— No companion app or custom EQ

$129.95 · Check Price on Amazon Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

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 OpenRun

The value pick of the lineup: tougher IP67 sealing than the OpenRun Pro 2 but a single driver with weaker bass, and no onboard storage like the Shokz OpenSwim Pro, Mojawa Run Plus or Nank Runner Diver2 Pro carry for swimming.

Specs side-by-side

Spec	Nank Runner Diver2 Pro	Shokz OpenRun
Drivers	Bone conduction (3rd gen)	Single bone conduction
Battery	10 hours	8 hours
Charge	Magnetic, 10 min = 1 hr	Proprietary magnetic, 10 min = 1.5 hr
Water Resistance	IP69 (submersible)	IP67
Weight	32g	26g
Bluetooth	5.4 + dual connection	5.1 + multipoint
Onboard Storage	32GB MP3	None
Frame	Titanium band	Titanium band
Warranty	1-year	2-year

← See the full ranking of best bone conduction headphones