Short answer: the Sony IER-EX15C. Both are rated 3.1/5 for sound quality (#1059 and #1048 of 1369 in-ear headphones), and the Sony IER-EX15C costs $28 against $35 for the IvipQ IE-01, and with sound quality even, the cheaper one is the better buy.
The case for the IvipQ IE-01: About 4 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end. The tradeoff: An uneven response, 2.4 dB standard deviation from target.
Why pick the Sony IER-EX15C: At 0 lbs (3 g) per earpiece it is very light, and the built-in microphone makes it handy for calls. The catch: Sub-bass rolls off about 2.8 dB below target under 60 Hz, so deep synth bass and rumble are subdued.
Buy the Sony IER-EX15C. Both are rated the same for sound quality, and it costs $7 less than the IvipQ IE-01.
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About 4 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end.
AliExpress $35 eBay
At 3 g per earpiece it is very light, and the built-in microphone makes it handy for calls.
Amazon $28.00 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
| IvipQ IE-01 | Sony IER-EX15C | |
|---|---|---|
| Price | $35 | $28.00 |
| Ranked | #1048 of 1369 in In-Ear Headphones | #1059 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 63 (median of 3 squig.link measurements, calibrated to AutoEQ) | 62 (median of 2 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.45 dB standard deviation | 2.85 dB standard deviation |
| Tonal Tilt | -1.14 (negative is warmer, positive brighter) | -0.43 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+4.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-5.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | - |
| Drivers | 1 x 10mm dynamic driver | 1 x 5mm |
| Impedance | 32 ohms | - |
| Sensitivity | 124 dB/Vrms | - |
| Frequency Response | 16Hz - 22kHz | 20Hz - 20kHz (Manufacturer specified) |
| Weight | 0 lbs (4.9 g) (per earbud) | 0 lbs (3 g) per earpiece |
| Built-in Microphone | - | Yes |
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