We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-06 · 7 min read · Independent comparison
If you want a bone conduction headphone you can actually swim and dive with, choose Hostena Full-Coverage Liquid Silicone; if you need an everyday open-ear headset that also records, translates and takes photos, choose sucegi E12. That is the whole decision in one line. One is built around water and long solo workouts — the kind of lightweight wireless headset for elderly parents who want to keep their ears open while walking, swimming or moving around the house. The other is a productivity gadget that happens to sit on your cheekbones.
• Hostena Full-Coverage Liquid Silicone — biggest strength: IP68 waterproofing rated for dives up to two meters, plus 32GB of built-in storage so it works with no phone at all.
• Hostena Full-Coverage Liquid Silicone — biggest trade-off: Bluetooth does not work underwater, so swimming means switching to MP3 mode manually, and there is no noise control at all.
• sucegi E12 — biggest strength: a 3-in-1 design that combines a camera, a voice recorder and bone conduction audio, with AI translation and meeting notes on top.
• sucegi E12 — biggest trade-off: IP65 only means sweat, dust and light rain — it is not a swimming device, and the 10mm dynamic driver is a very different audio approach from a bone conduction driver.
• Hostena Full-Coverage Liquid Silicone is for you if you swim, dive, surf or kayak and want music without blocking your ears.
• sucegi E12 is for you if you shoot vlogs, sit in meetings, travel and want translation and recording in the same device as your headphones.
The Hostena is a swimming tool first and a headphone second. Its headline spec is IP68 — you can take it down to roughly two meters of water without damage — and that single number reshapes everything else about the design. The enclosure is full-coverage liquid silicone, which is the part that matters most for skin comfort during long sessions. Silicone stays soft against the face and holds its grip when wet, and the brand specifically notes that the shape sits cleanly alongside swimming goggles and a cap. That is the detail that tells you this was designed by people thinking about lap swimming, not just splash resistance.
Battery is 8 hours of continuous use with a 2-hour charge, and standby runs up to 90 hours. Weight is 3.68 ounces, and the fit is described as lightweight and secure for intense activity. Bluetooth 6.0 with a 33-foot range covers the dry-land side — running, cycling, workouts, calls. There is no noise control, and the ear placement is listed as in-ear with a bone conduction driver, so expect open, ambient-aware listening rather than isolation.
Buy it if you swim, dive, kayak or surf and want audio that survives the water. Skip it if you want one headset for everything, or if you need active noise cancellation — it has none.
sucegi E12: Who It's For
The sucegi E12 is a different category of object. Calling it "just headphones" undersells it. It is a 3-in-1 device that bundles a camera, a voice recorder and bone conduction audio into one orange open-ear frame, and the whole pitch is about cutting down the gear you carry. The AI layer is the hook: you wake it with "Hi, Luma," and it supports real-time translation, automatic meeting notes and object recognition, with compatibility listed for OpenAI and Tongyi Qianwen.
Physically it weighs only 1.6 ounces — less than half the Hostena — with aviation silicone earhooks and an open-ear fit that keeps your ear canals clear so you stay aware of traffic and surroundings. The shell mixes ABS, rubber and silicone, and the package includes a protective case along with the cable and manual. Controls are unusually flexible: push button, touch and voice, so you are not locked into one interaction method.
Audio specs are conventional rather than exotic: a 10mm dynamic driver, 32 ohm impedance, 20Hz frequency response, 105 sensitivity and 60ms latency. That latency figure matters if you watch video or play games — it is low enough to keep lip-sync tolerable. Battery is 10 hours on a 1.5-hour charge, and a 10-minute quick charge buys an hour of playback, which is genuinely useful before a commute.
Protection is IP65 — sweat, dust and light rain. That is a workout-and-commute rating, not a swimming one. It is aimed at vlog shooting, outdoor recording, business translation, meeting documentation, calls and language learning. Buy it if you want one device doing media capture and translation. Skip it if water is part of your routine.
• Best for swimming and water sports → Hostena Full-Coverage Liquid Silicone. IP68 and two-meter dive depth versus IP65 splash resistance is not close.
• Best for phone-free workouts → Hostena Full-Coverage Liquid Silicone. 32GB of internal storage and MP3 mode mean no handset required.
• Best for battery life → sucegi E12. 10 hours versus 8, plus a 10-minute quick charge that adds an hour.
• Best for lightweight comfort → sucegi E12. 1.6 ounces against 3.68 ounces is a real difference over a long day.
• Best for travel and business → sucegi E12. Real-time translation, meeting notes and a voice recorder in one frame.
• Best for content creators → sucegi E12. The camera plus open-ear audio is a vlogging setup in a single device.
• Best for elderly users who want simplicity → Hostena Full-Coverage Liquid Silicone. Fewer modes to think about, a soft liquid silicone fit, and open-ear awareness for safety.
• Best for noise control → neither. Both list noise control as none. If you need ANC, look at a dedicated anc head phones for elderly buyer's guide instead.
In my opinion, the Hostena Full-Coverage Liquid Silicone is the one I would buy for an elderly parent who walks, swims or moves around independently. IP68 waterproofing, 32GB of offline music and an open-ear fit that keeps them aware of their surroundings is a genuinely useful combination, and the soft liquid silicone is the right material for long wear. The sucegi E12 is the smarter pick if you are the one recording, translating and shooting video all day — it just cannot go in the water. Decide on water first, features second, and the choice makes itself. Check the current price on Amazon before you commit, since both sit in very different budget brackets.
FAQ
how to bone conduction earphones work
how to use bone conduction earphones
Pair over Bluetooth 6.0, or with the Hostena, load music into its 32GB memory via the magnetic charging cable and switch to MP3 mode. The sucegi E12 adds touch, button and voice control, including the "Hi, Luma" wake phrase. Both have a 33-foot Bluetooth range.
how to wear bone conduction earphones
Rest the transducers on your cheekbones just in front of your ears, with the hooks sitting over the top of your ear. The Hostena is designed to fit alongside swimming goggles and a cap; the sucegi E12 uses aviation silicone earhooks. Neither goes inside your ear canal.
are these good for elderly users
In my opinion the Hostena suits elderly users better, mostly because it is simpler: open-ear safety, a soft silicone fit and offline music with no phone needed. The sucegi E12 is lighter at 1.6 ounces and lasts longer at 10 hours, but its AI, camera and translation features are more than many people need — and only the Hostena is genuinely waterproof.
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