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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want all-day over-ear comfort with a huge 50-hour battery and multipoint switching between two devices, choose SONY WH-CH520; if you need waterproof in-ear buds that lock into your ears for the gym and run on an 80-hour charging case, choose HAOYUYAN Earbuds. These are two genuinely different tools — one is a sit-down-and-listen headphone, the other is a sweat-proof workout companion — so the right answer comes down to how you actually use audio, not which one is "better."
• SONY WH-CH520 — biggest strength: up to 50 hours of battery, multipoint pairing with two devices at once, and a lightweight on-ear build with swivel earcups and soft pads. Biggest trade-off: no water-resistance rating and no noise cancelling, so it's a bad match for heavy sweat or very loud environments.
• HAOYUYAN Earbuds — biggest strength: IPX7 waterproofing, secure ear hooks, and up to 80 hours of total playtime from a case that recharges the buds eight times. Biggest trade-off: in-ear fit isn't for everyone, and the 90-day warranty is far shorter than Sony's one-year coverage.
• Who SONY WH-CH520 is for: commuters, students, desk workers and anyone who wants one pair of headphones to wear for hours and hop between a laptop and a phone.
• Who HAOYUYAN Earbuds are for: gym-goers, runners and anyone whose priority is staying put in the ear through sweat and movement.
• The core split: pick SONY for comfort and device flexibility; pick HAOYUYAN for water resistance and total playtime.
The WH-CH520 is built around one idea: keep it on your head all day and never think about charging. Sony rates the battery at up to 50 hours, and the USB-C quick-charge figure is genuinely useful — a short three-minute top-up is quoted as good for roughly 90 minutes of playback, which is the kind of thing that saves you on the way out the door. Charging is via USB-C, and a short USB-A-to-USB-C cable is included in the box.
Comfort is the other half of the pitch. The build is light at 147 g, the earcups swivel so the headphones fold flatter for carrying, and Sony calls out an adjustable headband, an extra head cushion and soft ear pads. This is the profile of a headphone you forget you're wearing during a long study session or a full workday. The 12 mm dynamic drivers cover a 20 Hz–20,000 Hz range, and the EQ Custom feature in the Sony Headphones Connect app lets you adjust the sound or save your own presets. DSEE is there to lift compressed files like typical streaming audio.
Who should skip it? If your main listening happens while running, lifting or sweating heavily, the lack of any water-resistance rating is a real limitation, and there's no active noise cancelling here either. It also uses an on-ear design with no headphone jack — wireless only. In my opinion, this is the pick for people whose listening is stationary-to-semi-mobile: desks, trains, planes, walking.
HAOYUYAN Earbuds: Who It's For
The HAOYUYAN BX17 is designed from the ground up for movement. The fit uses elastic, soft ear hooks plus three sizes of ear tips, which is the combination that keeps true wireless buds anchored during running and lifting. The IPX7 rating means sweat and water splashes aren't a concern — that's the single biggest functional difference between these two products, and for anyone who trains regularly it's decisive.
Battery is the other headline. Each charge is quoted at 15 hours, with up to 80 hours total from the case, and the case is said to hold eight full recharges. A dual LED display on the case shows real-time battery levels whether it's open or closed, so you're not guessing before a workout. The case charges over Type-C.
Sound-wise, the BX17 uses 14.3 mm dynamic drivers in an in-ear acoustic structure, tuned for punchy bass and crisp treble. Environmental Noise Cancellation (ENC) is aimed primarily at call clarity — it works to reduce background noise and limit sound leakage, which matters if you take calls in a busy gym or on a noisy street. Note this is ENC for calls, not the active noise cancelling you'd get from a premium over-ear.
Everyday usability is handled by a Hall switch: open the case and the buds power on and reconnect to the last paired device automatically, no button-pressing ritual. Bluetooth 5.3 is a step newer than the Sony's 5.2. Controls are physical push buttons rather than touch, which some people strongly prefer because it avoids accidental taps. Compatibility is broad across most Bluetooth devices.
The trade-offs are worth stating plainly. In-ear buds with hooks are a fit you either love or hate — some people find them fatiguing over a long day. There's no headphone jack, and the warranty is 90 days versus Sony's one year. And the 80-hour figure is total playtime including the case, so per-charge it's 15 hours, not 80. In my opinion, this is the right pick if your audio life revolves around training and you want buds that ignore sweat.
• Best for battery life → SONY WH-CH520. Up to 50 hours on a single charge beats the BX17's 15 hours per charge, even though the HAOYUYAN case stretches total listening to 80 hours.
• Best for workouts and sweat → HAOYUYAN Earbuds. IPX7 waterproofing and ear hooks are purpose-built for it; the Sony has no water-resistance rating.
• Best for all-day comfort → SONY WH-CH520. At 147 g with soft pads, a head cushion and swivel earcups, it's made to stay on for hours.
• Best for switching between devices → SONY WH-CH520. Multipoint holds two Bluetooth connections at once, so laptop-to-phone handoffs are seamless.
• Best for call clarity in noisy places → HAOYUYAN Earbuds. ENC targets background noise and sound leakage on calls.
• Best for fit security while moving → HAOYUYAN Earbuds. Ear hooks plus three ear-tip sizes keep them planted.
• Best for sound tweaking → SONY WH-CH520. EQ Custom and DSEE let you shape and boost audio in Sony's app.
• Best for quick top-ups → Both, in different ways. Sony's quick charge gives roughly 90 minutes from a three-minute charge; the HAOYUYAN case delivers eight full recharges from its own battery.
If I could only buy one, I'd take the SONY WH-CH520 for general life — commuting, working, watching, calling — because 50 hours of battery, multipoint and all-day comfort cover the widest range of everyday situations. That said, if your primary reason for buying earbuds is training, I'd switch to the HAOYUYAN Earbuds without hesitation: IPX7 waterproofing and a secure hooked fit are things the Sony simply can't do. In my opinion, the honest answer is that these aren't competitors so much as two different jobs. Buy the one that matches your job.
FAQ
It depends how you count. The SONY WH-CH520 runs up to 50 hours on a single charge. The HAOYUYAN gives 15 hours per charge but up to 80 hours total with its case, which holds eight recharges. For one long stretch, Sony wins; for total stored power, HAOYUYAN wins.
They have Environmental Noise Cancellation, which is aimed at reducing background noise and leakage for clearer calls — not the full active noise cancelling you'd find on premium headphones. Sony's WH-CH520 lists no noise control at all, so neither is a dedicated ANC product.
Value depends on your use case, not just the spec sheet. If you need waterproofing and workout-friendly fit, the HAOYUYAN delivers features the Sony doesn't have. If you want long battery, multipoint and app-based sound tuning, the Sony covers more ground. Check the current price on Amazon for each before deciding, since that's the part that shifts.
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