Short answer: a tie on sound quality. Both are rated 3.2/5 (#1005 and #987 of 1369 in-ear headphones) at nearly the same price ($118 vs $114), so choose on features and fit.
What the Arisyn BAI YONG does well: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. Watch for: About 3 dB less bass than the Harman target below 150 Hz, which can sound thin on pop, hip hop and electronic music.
The case for the OnePlus Buds 4: True wireless buds with active noise cancelling, Bluetooth 5.4, LHDC alongside AAC and SBC, and IP55 resistance cover most commuter needs. The catch: The extra bass bleeds upward with midbass 2.8 dB and low mids 1.6 dB above target, so vocals can sound thick, and the air band jumps 5.9 dB with a 6.5 dB peak at 8.1 kHz, adding a tizzy edge to cymbals.
Buy the Arisyn BAI YONG or the OnePlus Buds 4 on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Headphones rankings.
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Audione $118.00 eBay
True wireless buds with active noise cancelling, Bluetooth 5.4, LHDC alongside AAC and SBC, and IP55 resistance cover most commuter needs.
Amazon $114.00 eBayPrices on this page were last checked October 17, 2026 at 6:04 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Arisyn BAI YONG | OnePlus Buds 4 | |
|---|---|---|
| Price | $118.00 | $114.00 |
| Ranked | #1005 of 1369 in In-Ear Headphones | #987 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 64 (median of 3 squig.link measurements, calibrated to AutoEQ) | 64 (median of 2 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 3.16 dB standard deviation | 2.50 dB standard deviation |
| Tonal Tilt | +0.10 (negative is warmer, positive brighter) | -1.12 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-5.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+4.1 dB at 30 Hz) |
| Connection | Wired | True wireless |
| Driver Type | Hybrid (1 dynamic + 1 MEMS) | - |
| Drivers | 1 x 10mm LCP dynamic driver + 1 x solid-state MEMS driver | - |
| Impedance | 16 ohms | - |
| Sensitivity | 105 dB | - |
| Frequency Response | 20Hz - 20kHz | - |
| Active Noise Cancelling | - | Yes |
| Battery Life | - | 11 hours (45 with case, Manufacturer specified) |
| Bluetooth Version | - | 5.4 |
| Bluetooth Codecs | - | SBC, AAC, LHDC |
| Built-in Microphone | - | Yes |
| IP Rating | - | IP55 |
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