How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 7 min read · Independent comparison
• XKDUN Open Ear Headphones — biggest strength: a 16.2 mm titanium-coated dynamic driver with LDAC support, plus 30 hours of total playback (8 hours per charge) and a case with a real-time LED battery readout.
• XKDUN Open Ear Headphones — biggest trade-off: it is the bulkier package of the two on paper, with a plastic body and a charging case that needs 3 hours to refill itself.
• Cyberix Open Ear — biggest strength: a metal-and-silicone open-ear hook that charges fully in about 1 hour, pairs with Samsung devices without detection headaches, and keeps a stable signal in crowded places.
• Cyberix Open Ear — biggest trade-off: shorter stamina — around 4–5 hours per charge and up to 20 hours with the case — and a smaller 14.2 mm driver.
• Who each is for: XKDUN suits the all-day listener, LDAC fan and long-session athlete; Cyberix suits the Samsung owner who wants a quick-charging, low-bulk gym companion.
The XKDUN Open Ear Headphones, model W01BEIGE under the OPENBUDS W01 name, are built around one idea: stay open to the world, but don't sound like it. The earbuds sit outside your ear canal on soft ear hooks, so you keep awareness of traffic, gym machinery and conversations while music plays. The interesting part is what sits inside that hook — a 16.2 mm titanium-coated dynamic driver, which is a genuinely large diaphragm for this category, paired with LDAC support for high-fidelity playback. On paper that combination is aimed at people who care about bass weight and detail, not just background audio.
Battery is the other headline. You get 8 hours on a single charge and up to 30 hours total with the carrying case, and the case itself carries a 400 mAh battery that runs about 22 hours before it needs a 3-hour recharge. A smart LED display on the case shows remaining power in real time, which is a small thing that matters more than people expect — no guessing before a long run. Bluetooth 5.3 handles the connection with a 15-metre range and low-latency audio/video sync, and there are built-in noise-cancelling microphones for calls and video meetings. IPX6 water resistance covers sweat and rain, with the clear caveat that these are not for swimming and should not be soaked.
So who should buy it? In my opinion, this is the pair for someone who wears open-ear headphones for hours — a workday of calls and music, then a run or a long ride afterwards — and wants one charge to cover most of it. It also fits the listener who specifically wants LDAC and a big driver rather than the smallest possible bud. Who should skip it? Anyone who wants the lightest, most minimal hook on their ear, or who hates waiting on a case — a 3-hour case recharge and 1.5-hour bud charge is a slower cycle than the Cyberix. And if your priority is tight Samsung integration, the Cyberix is explicitly aimed at that. Note that the XKDUN ships as Beige with a matching beige plastic case, adult age range, and a 1-year manufacturer warranty.
The Cyberix Open Ear (model cyberix-007) takes a different route. Its enclosure is metal and silicone rather than plastic, which is a meaningful difference in how a hook feels and holds up over months of gym use, and the hook-shaped design is meant to keep the bud secure during exercise. The fit description is slightly unusual: it's an open-back earhook that "fits gently into the ear canal" without pressure — so it's a hybrid, sitting at the entrance rather than fully outside, while still letting outside sound in so you don't miss traffic or a training partner talking to you. Passive noise cancellation does what passives always do: it lowers ambient noise a little, nothing more.
The audio side is a 14.2 mm dynamic driver with 16 ohm impedance, 115 dB sensitivity and a 20 kHz frequency ceiling — a high-sensitivity, easy-to-drive setup that should get loud from a phone without much effort. Cyberix also lists 100 ms of audio latency, which is a figure worth knowing if you game or watch video and notice lip-sync drift. Battery is where it gives ground: about 4–5 hours per charge, up to 20 hours with the case, but a full charge in roughly 1 hour. Bluetooth is listed as version 6 with a 30-foot range, and the brand emphasizes stable signal in crowded places plus ultra-fast pairing with no manual reconnecting.
That makes the Cyberix a fit for a specific shopper: a Samsung user who is tired of earbuds that refuse to be detected, someone who trains in a busy gym and wants a dependable connection, and anyone who values a fast charge cycle over maximum endurance. The 1-hour charge is genuinely convenient for a lunch-break top-up. Who should skip it? If you need all-day battery without touching a charger, the 4–5 hour single-charge figure will frustrate you, and the smaller driver and lack of LDAC mean it's less of an audiophile pick. Also note there's no headphone jack, it charges over USB-C, and it comes in Black with a 1-year manufacturer warranty.
Side-by-Side: Which Should You Choose?
• Best for battery life → XKDUN Open Ear Headphones. 8 hours per charge and 30 hours total versus roughly 4–5 and 20 hours.
• Best for quick top-ups → Cyberix Open Ear. A full charge in about 1 hour against 1.5 hours for the buds and 3 hours for the XKDUN case.
• Best for Samsung owners → Cyberix Open Ear. It's specifically engineered for Samsung compatibility and fast, repeat pairing.
• Best for gym and crowded environments → Cyberix Open Ear. Metal-and-silicone build, secure hook, and a brand claim of stable signal in crowded places.
• Best for all-day work and calls → XKDUN Open Ear Headphones. Noise-cancelling mics, 15 m Bluetooth 5.3 range, and an LED case display that tells you what's left.
• Best for low-latency video and gaming → Cyberix Open Ear on paper, since it publishes a 100 ms latency figure; XKDUN advertises low-latency sync without a number.
• Best for sweat and rain either way → both. XKDUN is IPX6; Cyberix claims strong water resistance for sweat and light rain. Neither is for swimming.
I'd buy the XKDUN Open Ear Headphones. In my opinion the combination of a 16.2 mm titanium-coated driver, LDAC support, 30 hours of total playback and a case that shows its own battery level is simply the more complete package for how most people actually use open-ear buds — long days, mixed calls and workouts. The Cyberix is the smarter pick only if you're a Samsung user who values a metal-and-silicone hook and a 1-hour charge above everything else. If endurance is your dealbreaker, go XKDUN. If instant charging and Samsung pairing are, go Cyberix. Either way, check the current price on Amazon before deciding, since that's the one variable that can flip this call.
Both are built for it. XKDUN gives you IPX6 protection and 8 hours per charge, which suits long runs and double sessions. Cyberix gives you a metal-and-silicone hook and faster charging, which suits shorter, frequent gym visits. For marathon-length use, I'd lean XKDUN.
They're Bluetooth earbuds, so they pair with other phones too. The Samsung angle is about guaranteed detection and smooth pairing on Samsung devices specifically, which is where the brand focuses its compatibility claims. If you're on another Android or iPhone, expect normal Bluetooth behavior.
XKDUN, clearly. It lists 8 hours per charge and 30 hours total with the case, plus a 22-hour case reserve. Cyberix lists roughly 4–5 hours per charge and up to 20 hours with the case, but charges fully in about 1 hour.
They're good for calls precisely because they don't seal your ears — you hear your own voice naturally and stay aware of your surroundings. XKDUN adds built-in noise-cancelling microphones for clearer calls, while Cyberix relies on its open design and stable Bluetooth connection. Both are workable for meetings and phone calls.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.