Short answer: a tie on sound quality. Both are rated 3.6/5 (#709 and #726 of 1291 in-ear headphones) at nearly the same price ($77.99 vs $74.99), so choose on features and fit.
The case for the Kiwi Ears Stardust: The median of 12 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.42 dB spread, and its mids sit within about 1.4 dB of target, so vocals and instruments sound natural. The catch: Presence sits about 5.3 dB low with an 8.1 dB dip near 5.8 kHz, so vocals and instruments lose some bite.
Why pick the KZ AS10 Pro: An inexpensive all balanced armature IEM with five drivers per side. The tradeoff: Treble sits about 2.0 dB above target, so it can sound bright.
Buy the Kiwi Ears Stardust or the KZ AS10 Pro on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Headphones rankings.
The median of 12 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.42 dB spread, and its mids sit within about 1.4 dB of target, so vocals and instruments sound natural.
Amazon $77.99 eBay
An inexpensive all balanced armature IEM with five drivers per side.
Amazon $74.99 eBayPrices on this page were last checked October 16, 2026 at 5:46 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Kiwi Ears Stardust | KZ AS10 Pro | |
|---|---|---|
| Price | $77.99 | $74.99 |
| Ranked | #709 of 1291 in In-Ear Headphones | #726 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Balanced Armature |
| Drivers | 1 x 10mm dynamic + 4 x balanced armature | 5 x balanced armature |
| Impedance | 13 ohms | 26 ohms |
| Frequency Response | 20Hz - 40kHz | - |
| Weight | 0 lbs (20 g) | - |
| Harman Preference Score | 69 (median of 12 squig.link measurements, calibrated to AutoEQ) | 69 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.42 dB standard deviation | 1.94 dB standard deviation |
| Tonal Tilt | -0.45 (negative is warmer, positive brighter) | +0.35 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) |
| Sensitivity | - | 109 dB |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the Kiwi Ears Stardust from aftersound, atechreviews, audioamigo, bassaudio, bedrock, faxepremium, hbb, jaytiss, kazi, kuping-sensi, practiphile and superreview; the KZ AS10 Pro from bassyalexander, enemyspider, melatonin, musicafe, silicagel, soundcheck39 and vortexreviews, all via squig.link.
Related Headphone Comparisons
More top alternatives to Kiwi Ears Stardust: