If you want bone-conduction headphones with a built-in music player for streaming and swimming, choose Nanajorwa Bone Conduction Headphones; if you need a simpler open-ear headset for dry-land workouts, choose Gelecek 2026. For most people choosing between these two, Nanajorwa is the more versatile pick because it adds offline playback and supports submersion, while Gelecek keeps the setup focused on Bluetooth listening, exercise, and everyday outdoor awareness.
• Nanajorwa’s biggest strength: 32GB of built-in storage for offline audio, plus IPX8 water protection for swimming. Trade-off: its most distinctive feature requires adding your own audio files and switching to MP3 mode.
• Gelecek’s biggest strength: a straightforward open-ear design for running, cycling, gym sessions, and commuting. Trade-off: its IPX5 protection is intended for sweat and light rain, not underwater listening, and it has no built-in MP3 storage.
• Nanajorwa is for: swimmers and active listeners who want one headset for the pool, the gym, and outdoor exercise.
• Gelecek is for: people who mainly want Bluetooth audio while staying aware of their surroundings during land-based workouts and commutes.
Nanajorwa is the more adaptable choice if your listening routine includes both land and water. Its open-ear bone-conduction design does not sit inside the ear canal, and its stated IPX8 protection supports submersion up to 2 meters. The key detail for swimming is the built-in 32GB MP3 player. Bluetooth signals do not transmit underwater, so you need to put audio files on the headphones and use MP3 mode in the pool.
That makes this model a better fit for someone who wants music or podcasts during lap sessions without carrying a phone into the water. The storage supports MP3, FLAC, WMA, and WAV files, transferred from a computer using the included charging cable. It also has Bluetooth 6.0 for ordinary wireless listening outside the pool, a stated wireless range of 33 feet, and up to 10 hours of playtime at 50 percent volume. A magnetic charging connection and a stated recharge time under two hours round out the practical details.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-21 · 6 min read · Independent comparison
I would consider Nanajorwa for a swimmer who also runs, cycles, or trains at the gym and wants one device across those settings. Its open-ear arrangement can leave the ear canals unobstructed, which may appeal to people who dislike the sensation of in-ear earbuds. The product weighs 26.08 grams, and an adjustment cord is included to fine-tune the fit. I would skip it if you only want a simple Bluetooth headset and do not expect to use offline files or swim with it. The MP3 feature is useful, but it adds a small setup step: load compatible files, then switch modes when needed.
Gelecek 2026 is a simpler match for a dry-land routine. Its open-ear bone-conduction design is intended for sports such as running, cycling, hiking, and gym workouts, while leaving the ears uncovered enough for the wearer to hear surrounding sounds. That can matter on a road run, a bike path, or a commute where awareness of voices and traffic is part of the listening experience.
The headset connects wirelessly over Bluetooth and is described as suitable for sweat-heavy workouts and light rain. Its IPX5 protection is a meaningful limit: it does not make this the swimming option in this comparison. The listed battery life is up to 8 hours, and the product description presents the fit as lightweight and stable for exercise. For someone who plans to play audio from a phone or another Bluetooth source and does not need onboard storage, that simpler arrangement may be enough.
There is a specification detail worth treating carefully. The product title and feature description refer to Bluetooth 6.0, while the product information lists Bluetooth 5.3. I would not choose Gelecek on the assumption that it has a particular Bluetooth version without confirming that detail. Either way, its central appeal is clear from the stated features: an open-ear design for everyday movement, sweat and light-rain resistance, and Bluetooth listening. I would choose it for land-based workouts if I did not need swimming support or built-in MP3 playback. I would skip it if I wanted music stored on the headset itself or protection for underwater use.
Side-by-Side: Which Should You Choose?
• Best for swimming with audio: Nanajorwa Bone Conduction Headphones. Its IPX8 rating supports submersion up to 2 meters, and the built-in MP3 player provides offline playback because Bluetooth will not work underwater.
• Best for a phone-free pool session: Nanajorwa Bone Conduction Headphones. Transfer audio files to its 32GB storage before swimming; a phone is not needed for MP3 playback once the files are on the headset.
• Best stated battery life: Nanajorwa Bone Conduction Headphones, with up to 10 hours at 50 percent volume compared with Gelecek’s listed 8 hours.
• Best for workouts in sweat or light rain: Either can fit that use, but Nanajorwa offers the broader stated water protection. Gelecek is described for sweat and light rain, not swimming.
• Best for someone who dislikes in-ear earbuds: Both use an open-ear bone-conduction design, so neither requires placing an earbud inside the ear canal.
• Best for choosing by Bluetooth version: Check Gelecek’s listed specification before deciding. Its description names Bluetooth 6.0, but its product information says Bluetooth 5.3; Nanajorwa’s listed Bluetooth version is 6.0.
• Best for one headset across pool and land workouts: Nanajorwa Bone Conduction Headphones. Its offline player and higher water-protection rating give it a use case Gelecek does not claim.
I would choose Nanajorwa Bone Conduction Headphones for its combination of swimming support, offline storage, and longer stated playtime. The trade-off is that I would need to load audio files before using MP3 mode in the pool. For streaming from a phone during ordinary workouts, either headset can suit an open-ear preference, but Nanajorwa gives me more ways to listen when Bluetooth is not practical. In my opinion, it is the more flexible choice for streaming and training across different settings.
Its stated IPX5 protection is for sweat and light rain, not underwater use. For swimming, Nanajorwa is the relevant option because it has an IPX8 rating and a built-in MP3 player for offline listening.
No. Bluetooth does not transmit underwater, so the intended pool setup is to transfer audio files to its built-in 32GB storage and use MP3 mode. Bluetooth is for listening outside the water.
Both are wireless open-ear bone-conduction headphones, so either may suit ordinary Bluetooth listening when paired with a compatible device. Nanajorwa lists Bluetooth 6.0; Gelecek’s materials conflict, naming Bluetooth 6.0 in the description and Bluetooth 5.3 in the product information.
No. Both are described as open-ear bone-conduction designs rather than earbuds that sit inside the ear canal. If your priority is the best in ear headphones for streaming, neither matches that form factor; they are aimed at people who prefer open ears during exercise or commuting.
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