We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-04 · 6 min read · Independent comparison
If you want a pair of bluetooth headphones for running that can also survive lap after lap in the pool, choose GREYOLK Swimming Headphones; if you need a lighter open-ear headset that keeps music and calls going through long gym sessions and outdoor workouts, choose Bayhanc Bone Conduction Headphones. That's the whole decision in one line. Everything below explains why I land there, and it's all about how each one is built for a workout, not about hype.
• GREYOLK's biggest strength: a genuine IP68 waterproof rating plus 32GB of built-in storage, so it works where Bluetooth simply can't — underwater.
• GREYOLK's biggest trade-off: you have to double-click to switch into MP3 mode for swimming, and the onboard memory is useless if you don't load it up first.
• Bayhanc's biggest strength: a very light 28g wraparound frame with 10 hours of playtime and Bluetooth 5.4, which is exactly what a long run or gym block wants.
• Bayhanc's biggest trade-off: it's sweat-resistant, not swim-proof, and there's no onboard memory or MP3 mode.
• Pick GREYOLK if you swim and want one headset that covers water and land.
• Pick Bayhanc if your training is running, cycling and lifting, and you want maximum comfort with minimal fuss.
The GREYOLK set is the more specialized tool of the two. The headline spec is IP68 — the kind of sealing that shrugs off sweat, rain and full submersion, which is why the brand positions it for swimming, snorkeling, fishing and boating. Because Bluetooth doesn't transmit through water, GREYOLK solves that problem with 32GB of built-in memory that holds up to roughly 6,000 songs across MP3, WMA, WAV, APE and FLAC. You load your playlist over the magnetic charging cable, double-click the power button, and the headset plays straight from its own storage. That's a genuinely clever design for anyone who wants music mid-length.
On land it's a normal open-ear Bluetooth headset with Bluetooth 5.4 and a 10-metre range, a 150mAh battery good for up to 8 hours of playback or talk time, and a 1.5-hour charge. It weighs 32 grams (34g in the item details) and uses a wraparound titanium frame, so it should stay put during hard efforts. The 15mm bone conduction driver covers 20Hz–20,000Hz, and there's active noise cancellation in the spec list, though with an open-ear fit you're still meant to hear traffic and surroundings — which is the whole point for running and cycling. GREYOLK also backs it with a 2-year service commitment.
Who should buy it: swimmers, triathletes, and anyone who wants one headset for the pool, the run and the commute. Who should skip it: if you never get in the water, you're paying in complexity — the MP3 mode, the memory management, the mode switching — for a feature you'll never touch. In that case the simpler Bayhanc is the smarter buy. Check the current price on Amazon before you commit, since that's the one thing that can tip this either way.
The Bayhanc is built around one idea: stay out of your ears and stay put. At 28 grams it's the lighter of the two, and the wraparound frame is designed to hold position through workouts while playing nicely with most eyeglasses — a small detail that matters a lot if you run in prescription glasses or sunglasses. The open-ear design keeps your ear canals clear so you can hear traffic, other people and your surroundings, which is the safety argument for bone conduction in general.
Audio comes from 16mm bone conduction drivers with 8-ohm impedance and 90dB sensitivity. Bayhanc frames the tuning around clear vocals and balanced everyday sound — playlists, podcasts, audiobooks and spoken navigation — rather than bass-heavy thump. Bluetooth 5.4 gives you a stable connection up to 33 feet, and there's a built-in microphone for hands-free calls at home, at work or on the move. Battery life is the standout: up to 10 hours of playback with a 2-hour charge over USB-C. The sweat-resistant build handles workouts and light rain. There's no active noise cancellation here, and honestly, for running and cycling that's a feature, not a gap.
Side-by-Side: Which Should You Choose?
• Best for swimming → GREYOLK Swimming Headphones. IP68 sealing and 32GB of local storage are the only way this comparison works underwater.
• Best for all-day battery → Bayhanc Bone Conduction Headphones. Up to 10 hours versus up to 8, with a longer but USB-C charge.
• Best for pure running comfort → Bayhanc Bone Conduction Headphones. 28g versus 32g, and the frame is explicitly designed to sit well with glasses.
• Best for one-headset-does-everything → GREYOLK Swimming Headphones. Pool, run, bike and commute in a single device.
• Best for calls → Bayhanc Bone Conduction Headphones. The built-in mic and 33-foot range make hands-free calls straightforward.
• Best for loading your own music library → GREYOLK Swimming Headphones. 32GB and multi-format support, no phone required.
• Best for a simple, no-fuss workout headset → Bayhanc Bone Conduction Headphones. No mode switching, no file management.
• Best for value if you train indoors and outdoors but never swim → Bayhanc Bone Conduction Headphones. You're not paying for waterproofing you won't use — though always check the current price on Amazon, since that's what decides "value" in practice.
If I had to buy one, I'd take the GREYOLK Swimming Headphones. The IP68 rating plus 32GB of onboard memory make it the only one of the two that works in every part of a workout week — pool, road and gym — and the 8-hour battery, Bluetooth 5.4 and 2-year service commitment cover the land side well enough that I wouldn't miss much. The Bayhanc is the better pure running and cycling headset: lighter, longer-lasting and simpler. But if there's any chance you'll swim, GREYOLK is the one I'd recommend, and it's the one I'd reach for.
FAQ
what are the best bluetooth headphones for running
what are the best bluetooth earbuds for running
Strictly speaking, neither of these is an earbud — both are open-ear bone conduction headsets that sit outside the ear canal. That's usually the better choice for running, because nothing plugs your ears and you stay aware of your surroundings. If you specifically want in-ear buds, look elsewhere; if you want open-ear, both of these qualify.
Bluetooth doesn't transmit through water, which is why the GREYOLK switches to MP3 mode and plays from its 32GB of internal memory when you're submerged. The Bayhanc has no onboard memory and is only sweat-resistant, so it isn't designed for swimming at all.
More is better, so the Bayhanc's up to 10 hours edges out the GREYOLK's up to 8. In practice, 8 hours already covers several workouts plus a commute between charges, so battery alone shouldn't decide it — waterproofing and onboard storage matter far more if you swim.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: Kasiden Earplug Lanyard 2 vs WHAMVOX 10pcs: Secure Fit, TCJJ Cat Ear Kids vs Aurya Sleep Headphones Sports, Logitech H391 vs WESEARY Gaming Headset, how OneOdio Over Ear Headphones compares to CCA CRA