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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a lightweight, no-fuss open-ear headphone for dry-land training and everyday listening, choose Gelecek 6.0; if you need a headphone that survives full underwater swimming with built-in music storage, choose ZOVIMAX Bone Conduction Headphones.
• Gelecek 6.0 — biggest strength: A titanium frame that weighs just 29 grams, so it stays comfortable and holds its shape through bending and stretching. Its biggest trade-off: IPX5-style water resistance (listed as IP55 in the feature copy) is splash and sweat protection only — it is not built for swimming.
• ZOVIMAX — biggest strength: IPX8 waterproofing rated for submersion up to 5 meters for as long as 2.5 hours, plus an 8GB MP3 mode so you can swim without your phone. Its biggest trade-off: the body is plastic rather than titanium, and Bluetooth simply cannot work underwater, so you must remember to switch modes.
• Who the Gelecek 6.0 is for: Runners, hikers and cyclists who want the lightest possible open-ear fit and don't need to take calls or swim.
• Who the ZOVIMAX is for: Swimmers, divers and water-workout people who want one headphone that also works as a standalone MP3 player on land.
The Gelecek 6.0 is a single-purpose headphone, and it's honest about that. The spec sheet reads like a checklist for runners: a titanium frame, 29 grams on the head, and a hook-shaped open-ear design that leaves your ear canal completely free. That last part matters more than it sounds. With nothing stuffed in your ears, you still hear traffic, a cycling bell, or a training partner talking to you — which is the whole reason bone conduction exists as a category.
Where it earns its keep is the frame. Titanium is the reason a 29-gram headphone can be flexed, stretched and bent without permanently deforming, and it's why the Gelecek can survive being tossed in a gym bag instead of a hard case. The Bluetooth 5.4 radio and touch controls round out a simple, wireless-only package: no jacks, no cables, no memory storage. Ten hours of playback per charge, with a 12-hour charge time listed, means one long run or several short ones between charges.
ZOVIMAX Bone Conduction Headphones: Who It's For
The ZOVIMAX X7 MAX is the more ambitious of the two. It's still an open-ear, hook-shaped bone conduction headphone, but it adds two things the Gelecek doesn't have: a sealed, submersible body and its own music library.
The waterproofing is the headline. IPX8 with a stated capability of full submersion up to 5 meters for up to 2.5 hours is a genuinely different class of protection than splash resistance. The catch is spelled out plainly: Bluetooth doesn't transmit through water, so you have to double-click into MP3 mode before you get in the pool. That's where the 8GB of internal memory comes in — the spec claims room for up to 2,000 songs, and you load them by plugging the magnetic charging cable into a computer and treating the headphone like a USB drive. It's an old-school idea, and for swimming it's the only one that works.
On land it behaves like a normal Bluetooth 6.0 headphone, with 14.2mm dynamic drivers, passive noise cancellation and an enhanced call system. Battery life is quoted at up to 8 hours of continuous playback with a 2-hour magnetic charge — note that the product title says 12 hours while the feature copy says 8, so treat 8 as the realistic figure. The silicone earcup pads and included adjustable strap are aimed at keeping the fit stable when you're moving your head, and the plastic body keeps it light at the cost of the premium feel titanium would give. A 2-year warranty is listed.
Who should skip it? Anyone who wants the absolute lightest, simplest headphone for running only. The extra capability — memory, MP3 mode, strap, submersion rating — comes with more to manage.
Side-by-Side: Which Should You Choose?
• Best for swimming → ZOVIMAX. IPX8 submersion to 5 meters for 2.5 hours, plus MP3 mode so Bluetooth's underwater limitation doesn't matter.
• Best for running and cycling → Gelecek 6.0. 29 grams and a titanium frame that flexes without deforming is exactly what you want bouncing on your head for an hour.
• Best for longest quoted playback → Gelecek 6.0. 10 hours versus the 8 hours stated for the ZOVIMAX.
• Best for faster charging → ZOVIMAX. 2 hours to full via magnetic charging, against 12 hours quoted for the Gelecek.
• Best for build material → Gelecek 6.0. Titanium versus plastic, and it's the reason the Gelecek can be bent and stretched repeatedly.
• Best for calls → ZOVIMAX. An enhanced call system is called out; the Gelecek's data lists no call feature.
• Best for fit adjustability → ZOVIMAX. An included adjustable strap lets it fit different head sizes.
If I were buying one, I'd pick the ZOVIMAX Bone Conduction Headphones. In my opinion, the IPX8 rating, the 8GB MP3 mode and the 2-year warranty make it the more versatile headphone for the same basic open-ear job — it handles the pool, the gym and the street, and it doesn't need your phone to do any of it. I'd only steer you to the Gelecek 6.0 if your world is strictly dry: running, hiking, cycling, and you value that 29-gram titanium frame and the extra two hours of playback above everything else.
how to bone conduction headphones work
They sit on your cheekbones rather than inside your ear canal and send vibration through the bone to your inner ear, bypassing the eardrum. That's why both of these leave your ears open so you can still hear traffic and surroundings. The ZOVIMAX uses 14.2mm dynamic drivers, while the Gelecek uses a bone conduction driver in a fully enclosed cavity designed to cut sound leakage.
how to wear bone conduction headphones
Hook the transducers over the top of your ears and rest the pads on your cheekbones, just in front of your ears — not over them. The Gelecek's titanium frame flexes to sit correctly, and the ZOVIMAX includes an adjustable strap for different head sizes. Both are open-ear, so nothing goes inside the ear canal.
how to use bone conduction headphones
Pair over Bluetooth and play from your phone for normal listening; the Gelecek runs Bluetooth 5.4 and the ZOVIMAX runs Bluetooth 6.0. For swimming, the ZOVIMAX must be switched to MP3 mode first, because Bluetooth won't transmit through water — double-click to toggle, and load songs via the magnetic charging cable connected to a computer. Neither model has a headphone jack, so wireless is the only option.
how to bone conduction headphones for swimming
Only the ZOVIMAX is rated for it, with IPX8 protection for submersion up to 5 meters for as long as 2.5 hours. Switch it to MP3 mode before you get in, since Bluetooth can't work underwater, and use the 8GB of internal memory for your tracks. The Gelecek 6.0's water resistance is for sweat and splashes, so keep it out of the pool.
One practical note before you decide: both listings change over time, so check the current price on Amazon using the button on this page and compare against what each headphone actually gives you — titanium and 10 hours on one side, IPX8 and built-in music on the other.
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