How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a wired, low-latency pair that stays locked onto your ears through sweaty gym sessions, choose Granvela GV1; if you need an open-ear, wireless set that keeps you aware of traffic and lasts a full training week on a charge, choose Gelecek Bone Conduction Headphones. Both carry water-resistance ratings aimed at sweat and splashes, but they solve two completely different problems — one is about a secure in-ear seal, the other is about staying connected to the world around you. This comparison breaks down exactly who each one fits.
• Granvela GV1 — biggest strength: A memory-wire over-ear hook plus an angled in-ear nozzle that creates a locked-in, noise-isolating fit, with a 9mm dynamic driver tuned for punchy bass.
• Granvela GV1 — biggest trade-off: It's wired, so you're tethered to a 3.5mm jack and there's no battery or Bluetooth freedom.
• Gelecek — biggest strength: True open-ear bone conduction with a titanium frame weighing 29 grams, up to 10 hours of playtime, and Bluetooth 5.4 wireless freedom.
• Gelecek — biggest trade-off: Open-ear design means you're deliberately letting ambient sound in, and it needs charging.
• Who Granvela GV1 is for: Runners, lifters, and commuters who want maximum isolation and a cable they never have to charge.
• Who Gelecek is for: Cyclists, outdoor runners, and anyone who wants wireless convenience and situational awareness.
The GV1 is a classic sports in-ear built around one idea: staying put. The memory-wire earhook bends to the shape of your ear and holds the bud in place, so it doesn't creep out mid-sprint or mid-set. The angled nozzles are designed to match the natural angle of your ear canal, which is what makes the passive noise isolation actually work — you get a comfortable seal that blocks out gym clatter and road noise without any active electronics.
Sound is handled by a 9mm neodymium dynamic driver with a 20Hz–20kHz frequency range, 16-ohm impedance, and 90dB sensitivity. In plain terms, that's an easy-to-drive driver with a bass-forward tuning, which suits energetic music for runs and lifting. Because it's wired over a 3.5mm jack, there's no pairing, no lag, and no battery to think about — plug into a phone, tablet, laptop, or MP3 player and go. The in-line one-button control handles calls, play/pause, and track skipping, and you get multiple silicone ear tips, a shirt clip, and a carry pouch in the box.
Buy it if you want a dependable, cable-tethered training partner with strong isolation and bass. Skip it if you need wireless freedom, want to hear traffic while you run, or your phone has no headphone jack.
The Gelecek set takes the opposite approach. Instead of sealing your ear canal, it rests on your cheekbones and sends sound through bone conduction, leaving your ears completely open. That's the whole point: you hear your music and the world at the same time — passing cars, a training partner, a cyclist coming up behind you. For outdoor athletes, that awareness is a genuine safety feature, not a gimmick.
The frame is titanium and weighs just 29 grams, and it's built to bend and flex without deforming, so it survives being stuffed in a bag or stretched onto different head shapes. Battery life is rated at up to 10 hours, which covers a full week of short workouts or a long day of commuting on a single charge, and it recharges over USB-C. Wireless connectivity runs on Bluetooth 5.4, and there's a built-in mic with noise cancellation for hands-free calls, which makes it usable for remote meetings too. The open design also reduces sound leakage through a fully enclosed cavity, so less of your audio bleeds out to the people around you.
Buy it if you run or ride outdoors, hate things in your ears, or want one headset for both workouts and calls. Skip it if you want deep isolation on a noisy train or plane — open-ear simply can't seal sound out.
Side-by-Side: Which Should You Choose?
• Best for situational awareness and outdoor safety → Gelecek Bone Conduction Headphones (open-ear bone conduction).
• Best for wireless freedom and no cables → Gelecek (Bluetooth 5.4, no jack).
• Best for plug-and-play with zero charging → Granvela GV1 (wired 3.5mm, no battery).
• Best for passive noise isolation and bass-forward sound → Granvela GV1 (sealed in-ear, 9mm dynamic driver).
• Best for long sessions without recharging → Gelecek (up to 10 hours of playtime).
• Best for hands-free calls and remote meetings → Gelecek (built-in mic with noise cancellation).
• Best for travel and commuting where you want to block the world out → Granvela GV1 (in-ear seal).
In my opinion, I'd buy the Gelecek Bone Conduction Headphones if I spend most of my training time outdoors or on busy roads, because the open-ear design and 10-hour wireless battery fit that lifestyle better than a cable ever could. But if I mostly lift indoors, commute, or want maximum isolation and bass with zero charging hassle, I'd take the Granvela GV1 — the memory-wire fit and sealed in-ear design do exactly what a gym headphone should. Match the pick to where you actually listen, and you won't regret either.
are headphones waterproof
Not usually in the strict sense. Both of these are rated IPX5, which means they resist sweat and splashes — fine for running, gym, and light rain. That's water resistance, not full waterproofing, so don't submerge either one.
are headphones water resistant
Yes — water resistance is exactly what the IPX5 rating on the Granvela GV1 and the IPX5/IP55 rating on the Gelecek describe. It covers sweat, splashes, and moisture during workouts. It does not mean you can swim with them or soak them.
No. It's a wired 3.5mm headphone with no battery, so it's always ready as long as your device has a headphone jack. The Gelecek, by contrast, runs on Bluetooth and needs charging, though its battery is rated up to 10 hours.
For outdoor running, I'd lean Gelecek — the open-ear bone conduction design keeps you aware of traffic and nearby people while you run. The Granvela GV1 is better when you'd rather block the world out and want a locked-in in-ear fit.
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