We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 6 min read · Independent comparison
If you want a lightweight open-ear earbud with ear hooks, a boom-free single-ear option, and a flexible fit you can wear on one side or both, choose Wiykasenbos Earbuds Open Ear; if you need true bone conduction sound, a titanium frame, and a longer 12-hour battery, choose Pupabiflor Bone Conduction Headphones.
• Wiykasenbos Earbuds Open Ear — biggest strength: Open-ear design with ear hooks, a built-in mic with a Smart AI chip for calls, Bluetooth 5.3, and IPX5 sweat resistance — a sport-first earbud with a single-ear option.
• Wiykasenbos Earbuds Open Ear — biggest trade-off: Listed battery life is inconsistent across its own materials (6–7 hours in one spot, 4 hours in another), so expect a single-charge session, not a full day.
• Pupabiflor Bone Conduction Headphones — biggest strength: Real bone conduction drivers that send audio through your cheekbones, a lightweight titanium frame, Bluetooth V6.0, and a stated 12 hours of playtime.
• Pupabiflor Bone Conduction Headphones — biggest trade-off: It has no noise control at all and no headphone jack, so it is wireless-only and everything around you stays audible by design.
• Who each is for: Wiykasenbos suits the runner, walker or cyclist who wants a hooked open-ear fit and clear calls; Pupabiflor suits the long-session athlete or commuter who wants bone conduction and the longest battery.
The Wiykasenbos Earbuds Open Ear are built around one idea: keep your ears open and your surroundings audible. The open-ear design means nothing plugs your canal, so traffic, other runners, or a colleague tapping your shoulder all come through while your music plays. The ear hook holds the bud in place, and the skin-friendly silicone is described as soft and silky, which matters when you are wearing something for an hour of movement rather than a ten-minute commute.
On the spec sheet, the calling side is where Wiykasenbos leans hardest. There is a high-definition microphone that the brand says picks up your voice and filters background noise, paired with a Smart AI chip for smoother, less choppy calls. For someone who takes work calls while walking or answers the phone mid-run, that is the headline feature. Bluetooth 5.3 keeps the connection current for phones and tablets, and IPX5 means sweat and light rain are not a problem — you can push through a hard session without babysitting the earbuds.
Who should buy it: runners, walkers, cyclists and gym-goers who want an open-ear hook fit, dependable call quality, and IPX5 sweat protection. Who should skip it: anyone who needs a guaranteed all-day battery number, or who wants bone conduction rather than an open-air speaker sitting outside the ear.
Pupabiflor Bone Conduction Headphones: Who It's For
Pupabiflor's model X3 is a different animal. Instead of a small open-air earbud, it uses an actual bone conduction driver that delivers audio through your cheekbones with your ears completely unobstructed. The frame is titanium — flexible, light, and the reason it can clamp securely without pinching during long wear. The whole design is aimed at reducing ear fatigue, which is exactly what you want if you are logging hour-long runs, long rides, or a full gym session.
The numbers back that up. Pupabiflor states 12 hours of playtime, which is a genuinely different class of endurance from the Wiykasenbos listing. Bluetooth V6.0 is the newest wireless version between the two, and IPX5 waterproofing covers the same sweat-and-moisture territory. There is a built-in microphone for calls, touch controls on the frame, and the fit is designed to stay put during vigorous movement. It ships with a user manual and carries a 1-number warranty description.
The compromises are real and worth stating plainly. There is no noise control of any kind — no ANC, no isolation — so your music shares space with the world, which is the whole point of open-ear safety but also means a noisy gym or a windy road will dilute what you hear. There is also no headphone jack, so it is strictly wireless, and the color is fixed at Pitch Black. If you want to plug in or want a sealed, immersive listen, this is not the product.
Who should buy it: cyclists and runners who prioritize hearing traffic, gym-goers who hate ear fatigue, and anyone who wants the longest stated battery between these two. Who should skip it: buyers who want noise isolation, a wired option, or a compact single-ear earbud.
• Best for battery life → Pupabiflor Bone Conduction Headphones. Its stated 12 hours roughly doubles the Wiykasenbos figure, and the Wiykasenbos number is inconsistent (6–7 vs 4 hours) across its own materials.
• Best for clear calls → Wiykasenbos Earbuds Open Ear. The high-definition mic plus Smart AI chip is the more calling-focused package.
• Best for bone conduction sound → Pupabiflor Bone Conduction Headphones. It uses an actual bone conduction driver; Wiykasenbos is an open-ear earbud with a speaker outside the canal.
• Best for compact, single-ear use → Wiykasenbos Earbuds Open Ear. It is described as a single-ear Bluetooth headset with ear hooks, which suits people who want one bud rather than a full headband.
• Best for long, comfortable wear → Pupabiflor Bone Conduction Headphones. The flexible titanium frame and lightweight build are aimed squarely at reduced ear fatigue over hours.
• Best for the newest Bluetooth → Pupabiflor Bone Conduction Headphones. Bluetooth V6.0 versus Bluetooth 5.3 on the Wiykasenbos.
• Best for situational awareness → both. Both are open-ear by design and both carry IPX5, so runners, walkers and cyclists are covered either way.
• Best for a sealed, quiet listen → neither. No noise control on either product, so neither is the pick if you want to block out the world.
If I were choosing for myself, I would buy the Pupabiflor Bone Conduction Headphones. In my opinion, the combination of a true bone conduction driver, a titanium frame built for long comfortable wear, Bluetooth V6.0, and a stated 12-hour battery makes it the more capable product for the running, cycling and gym use cases both of these are sold for. The Wiykasenbos is the better pick only if clear calls and a compact single-ear hooked earbud matter more to you than endurance and bone conduction sound — and its inconsistent battery listing is a real reason to think twice. For most buyers in this category, I recommend the Pupabiflor.
Pupabiflor. It states 12 hours of playtime, while Wiykasenbos lists 6–7 hours in one place and 4 hours in another. If endurance is your priority, Pupabiflor is the safer bet.
No. Only the Pupabiflor uses a bone conduction driver that transmits through your cheekbones. The Wiykasenbos is an open-ear earbud with ear hooks, which sits outside your ear canal but is not bone conduction.
Neither has active noise cancelling, and Pupabiflor explicitly lists no noise control. Both are designed to keep you aware of your surroundings, so external sound stays audible on purpose.
Pick Wiykasenbos if clear calls and a compact single-ear open-ear earbud are your main needs. Pick Pupabiflor if you want bone conduction sound, the longest stated battery, and a lightweight titanium frame for long sessions. Price is worth checking on Amazon before you commit, since it changes and the page here does not quote it.
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.