If you want a lightweight, foldable open-ear headset for workouts and everyday movement, choose Rumatas Bone Conduction Headphones; if you need onboard music and a higher stated water-resistance rating for swimming, choose Aiwa. For airplane travel, I’d lean toward Aiwa if you want to leave your phone behind, but neither model is designed to block cabin noise.
Rumatas Bone Conduction Headphones vs Aiwa at a Glance
• Aiwa: Built-in 8GB MP3 storage, up to 12 hours of playtime, and an IP68 rating make it the more swim-focused option; it is heavier on listed features and does not have a stated folding design.
• Rumatas is for buyers who prioritize a light, flexible headset and Bluetooth listening during movement.
• Aiwa is for buyers who want music stored on the headset and a model specifically described for swimming.
• For airplane travel: Aiwa can play stored music without a phone connection, while neither model offers a clear solution for blocking engine and cabin noise.
Rumatas is an open-ear bone-conduction headset with Bluetooth 5.3. Its 30 g weight is a useful detail for anyone who dislikes a heavy headset during a run, walk, or long stretch of everyday wear. The silicone construction is described as comfortable, and the ear-hook design is intended to stay in place during exercise. Those details make it a practical fit for movement rather than a sealed, in-ear listening experience.
The flexible frame can bend and fold, which gives Rumatas a portability advantage over a headset with no stated folding feature. It also uses a magnetic charging cable, with a stated two-hour full charge and up to 10 hours of use. That is enough stated battery life for many workouts and day-to-day listening sessions, though Aiwa claims a longer maximum runtime. Bluetooth has a stated range of 10 meters, so the phone can stay nearby rather than being in your hand.
The main compromise is that the supplied information does not list built-in music storage. If you want to listen without carrying or connecting a phone, Rumatas gives you less to work with on paper than Aiwa. It is also not a noise-blocking design: the listed noise control is “None,” and open-ear headphones leave the ears uncovered. That may suit someone who wants awareness of nearby activity, but it is a poor match for a quiet, isolated listening experience.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-19 · 8 min read · Independent comparison
Who should skip it: Skip Rumatas if you specifically need onboard MP3 storage or want a headset described with an IP68 rating for swimming.
Its IP68 rating is the clearest reason to consider Aiwa for water-based use. The product is described for full submersion, swimming, and resistance to sweat, dust, and rain. The stated battery life is up to 12 hours, two hours more than Rumatas’s stated maximum. That extra claimed runtime may appeal to someone who wants fewer charging interruptions between workouts, though actual listening time can vary with use.
Aiwa keeps the ears open and is described as having a lightweight, ergonomic fit around the head and ears. Its Bluetooth connectivity gives you another listening option when using a phone, while the built-in storage covers listening without one. The listed controls are touch-based. The important limitation is that the feature sheet does not say the frame folds, and the active noise cancellation entry does not change the basic open-ear design: shoppers should not assume it creates a sealed or cabin-quiet listening experience.
Who should skip it: Skip Aiwa if a specifically foldable, 30 g design is your priority or if you need headphones that block surrounding noise.
• Best for a stated lightweight design → Rumatas Bone Conduction Headphones. Its listed weight is 30 g, which is a concrete advantage if low weight matters during longer wear.
• Best for a foldable frame → Rumatas Bone Conduction Headphones. Its design is described as bendable and foldable, making it easier to pack than a model with no stated folding feature.
• Best for swimming → Aiwa. Its IP68 rating and built-in MP3 storage are the more directly relevant combination for listening without a phone connection in the water.
• Best for stored music without your phone → Aiwa. The headset has 8GB of built-in storage and is described as holding up to 2,000 songs.
• Best for longer stated battery life → Aiwa. It claims up to 12 hours, compared with Rumatas’s up to 10 hours.
• Best for Bluetooth version detail → Rumatas Bone Conduction Headphones. Rumatas lists Bluetooth 5.3; Aiwa’s sheet lists Bluetooth but does not specify a version.
• Best for airplane travel without relying on a phone connection → Aiwa. Its onboard storage can provide music without Bluetooth, though open-ear bone conduction does not mean cabin noise is blocked.
• Best for a “best foldable bluetooth headphones” search → Rumatas, with a caveat. It combines a folding design with Bluetooth, but neither product is described as a traditional over-ear folding headphone.
• Best for shoppers seeking “noise canceling in ear headphones for travel” → Neither is a close match. Both are open-ear bone-conduction designs, and Rumatas lists no noise control. Aiwa lists active noise cancellation, but its open-ear construction is not the same as a sealed in-ear fit.
Buying Considerations
First, be clear about what “open ear” means for your routine. These are not conventional in-ear earbuds that seal the ear canal. Rumatas uses bone-conduction drivers and lists no noise control; Aiwa also uses bone conduction while keeping the ears open. That style may suit exercise when awareness of nearby sounds matters. It is less suited to a buyer whose main goal is shutting out a busy gym, street noise, or airplane cabin sounds.
Water use is another meaningful divider. Aiwa has the more explicit swimming case, with an IP68 rating and built-in music storage. Rumatas is described with an IP66 waterproof rating in its product details, while its title refers to IPX8; because those descriptions do not align, I would not treat the available information as a clear swimming specification. If swimming is central to your decision, Aiwa’s stated IP68 rating and phone-free music feature make its intended use easier to assess.
Fit and packing preference may point the other way. Rumatas gives a specific weight of 30 g and a bendable, foldable design. Aiwa is described as lightweight and ergonomic, but the sheet provides no numerical weight and no folding feature. If you are searching for the best multipoint open ear earbuds for small ears, neither product’s information confirms multipoint connectivity or a small-ear-specific fit. They are headset-style open-ear designs, so those details should not be assumed.
Finally, compare the controls and charging details you can verify. Rumatas lists a magnetic charging cable and a two-hour full charge. Aiwa lists touch controls and up to 12 hours of battery life, but the supplied information does not give a charging duration. If charging routine matters as much as playtime, Rumatas provides the clearer charging detail; if avoiding a phone during listening matters more, Aiwa has the more useful storage feature.
I would choose Aiwa for airplane travel if I wanted music stored on the headset and a longer stated battery life. Its 8GB memory and IP68 rating also make it the more compelling pick for swimming.
For a lighter, foldable design that suits running, cycling, and packing, I’d choose Rumatas instead.
My overall pick is Aiwa for buyers who need the broader set of stated use options, with the important caveat that its open-ear design is not a substitute for noise-blocking travel headphones.
FAQ
Aiwa is listed with an IP68 rating and described for full submersion and swimming. Rumatas has conflicting water-resistance details in the supplied information, so I would not assume it is the better-supported choice for swimming.
Aiwa is listed for up to 12 hours of playtime, while Rumatas is described as providing up to 10 hours of use. These are stated maximums, not a guarantee of the same runtime in every listening situation.
No. Both are open-ear bone-conduction headsets rather than in-ear headphones. Aiwa lists active noise cancellation, but shoppers should not treat that listing as proof that its open-ear fit blocks airplane or street noise.
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