How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-27 · 7 min read · Independent comparison
• SONY Headphones WH-CH510 — biggest strength: up to 35 hours of playback per charge, plus a swivel-flat on-ear design, 30mm dynamic drivers, Bluetooth 5, USB-C charging and a built-in mic for hands-free calls.
• SONY Headphones WH-CH510 — biggest trade-off: on-ear plastic cups with no headphone jack, so you are tied to Bluetooth and the fit is less discreet than tiny in-ear buds.
• wedoking Smallest Invisible Sleep — biggest strength: an extremely small in-ear build (each bud around 2 g) designed to rest on the ear concha with soft silicone tips, passive noise blocking up to 24dB, no lights or alerts and IPX6 sweat resistance.
• wedoking Smallest Invisible Sleep — biggest trade-off: 4 hours onboard battery (up to 20 hours with the case) and no active noise cancelling — it relies on the silicone seal to quiet the room.
• Who each pick is for: the SONY WH-CH510 suits commuters, students and desk workers who want one pair for long listening and calls; the wedoking buds suit side sleepers, light travellers and people who want an invisible, distraction-free fit.
The WH-CH510 is built around one idea: keep the music going. Sony rates the battery at up to 35 hours of average playback and a full charge takes about 4.5 hours, with quick charging on top of that. For most people that means charging once or twice a week rather than every night. That single spec tells you a lot about who this pair is for — someone who wears headphones all day at a desk, on campus, or through a long commute, and does not want to think about the battery.
It is an on-ear design with circular plastic earcups and 30mm dynamic drivers, covering a 20–20000 Hz range at 42 ohm impedance. The cups swivel flat, which is the practical bit: they pack into a bag or a suitcase without fighting for space. Bluetooth 5 with a roughly 10-metre line-of-sight range pairs with a phone or tablet, and the supported audio formats are SBC and AAC. There is a built-in microphone and voice-assistant support, so you can take a call or bark a command without pulling your phone out. Charging is USB-C, and the box includes a cable and user manual.
wedoking Smallest Invisible Sleep: Who It's For
This one is a different species of product. The wedoking Smallest Invisible Sleep is a true-wireless in-ear bud — each one roughly 2 grams and around 13 x 10 x 16.9 mm, with an ivory plastic-and-silicone body. It is designed to sit on the ear concha with three sizes of soft silicone ear tips and ear caps, so the pressure is spread rather than jammed into the canal. That is the whole point for side sleepers, who need something flat enough to lie on.
The second design choice is the quiet one: there are no touch controls, no flashing lights and no low-battery alert. Nothing beeps, nothing blinks, nothing needs your finger. Each bud can be used on its own, which is handy if you want one ear open or the other charging. Noise control is passive — the silicone seal blocks outside sound up to about 24dB — and wedoking states plainly that there is no active noise cancelling. Bluetooth 5.3 handles the connection to iOS and Android, and the buds are rated IPX6 for sweat and splashes, though not for swimming or diving.
Battery is 4 hours in the buds with up to 20 hours from the charging case, and a charge takes about 4 hours. The case itself is small and light. Who should buy it: side sleepers, people who want an invisible bud at work or in the gym, anyone who wants a passive noise seal without gadget lights, and light travellers who want a tiny case in a pocket. Who should skip it: listeners who want one charge to last a full workday, people who want active noise cancelling, and anyone who relies on touch controls or a wired connection.
• Best for battery life → SONY Headphones WH-CH510. Up to 35 hours per charge versus 4 hours in the wedoking buds (up to 20 with the case).
• Best for side sleeping and lying down → wedoking Smallest Invisible Sleep. Roughly 2 g per bud, resting on the concha with soft silicone tips and no pressure points.
• Best for calls and voice commands → SONY Headphones WH-CH510. Built-in mic plus voice-assistant support and voice control.
• Best for staying unnoticed → wedoking Smallest Invisible Sleep. No lights, no alerts, no touch controls, and a tiny in-ear footprint.
• Best for packing in a bag or suitcase → SONY Headphones WH-CH510. The earcups swivel flat, which is easier to stow than a rigid pair of cups.
• Best for a quiet room without ANC → wedoking Smallest Invisible Sleep. Up to 24dB of passive blocking from the seal — though the SONY pair is the one that lists active noise cancellation.
• Best for charging convenience → SONY Headphones WH-CH510. USB-C charging versus a charging case for the wedoking buds.
My Verdict
If I had to pick one, I would buy the SONY Headphones WH-CH510 for everyday listening — the 35-hour battery, USB-C charging, mic and swivel-flat cups make it the more useful all-rounder for commutes, work and travel. But I would not pretend it replaces the wedoking buds: if your actual problem is "I sleep on my side and normal headphones dig into my ear," the wedoking Smallest Invisible Sleep is the one built for that job, with its 2 g fit, no lights or alerts and up to 24dB of passive blocking. In my opinion these are two tools for two different problems, not two versions of the same thing. Buy the SONY for sound-all-day; buy the wedoking for sleep and stealth. Check the current price on Amazon before you decide, since both sit in very different budget brackets.
what are the best open ear headphones
"Open ear" usually means a design that does not seal the ear canal — bone conduction or an ear-hook style. Neither product here is truly open-ear: the SONY WH-CH510 is an on-ear set with swivel earcups and 30mm drivers, and the wedoking buds are in-ear with a sealing silicone tip. If you specifically want open-ear audio, look for that term in the listing; if you want long battery and calls, the WH-CH510 fits.
are on ear headphones good
They are good when comfort and battery matter more than isolation. The SONY WH-CH510 gives you up to 35 hours of playback, a mic for hands-free calls and a flat-folding travel shape. The trade-off is that on-ear cups sit against the ear rather than inside it, so they block less ambient noise than a sealed in-ear bud.
are open ear headphones good
It depends on what you want them for. Open designs let in the world, which is safer for cycling and running but weaker for noisy commutes. If blocking sound is the goal, the wedoking buds use a silicone seal rated to block up to 24dB passively, while the SONY pair is the one that lists active noise cancellation.
are on ear headphones comfortable
For many people yes, especially for a couple of hours at a time. The SONY WH-CH510 is a lightweight on-ear headset with circular plastic earcups and a swivel design, which helps it pack down rather than clamp hard. If you need to lie on your side, though, an on-ear cup is the wrong shape — the wedoking buds are the better fit there.
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.
See also: Symphonized DRM vs erjigo KZ ZSN Pro, MEDca Listening Set vs Dioche TV Headphones Over, SIMOLIO Girls vs RCA Earbuds, Fragolucyou Headphones-Colorful Light vs QearFun USB C Kids