Short answer: the Rose Technics Star City 5 Pro. Both are rated 3.8/5 for sound quality (#582 and #552 of 1291 in-ear headphones), and the Rose Technics Star City 5 Pro costs $79.99 against $85.49 for the Kefine Delci AE, and with sound quality even, the cheaper one is the better buy.
What the Kefine Delci AE does well: A special edition of the Kefine Delci with a DLC dynamic driver and interchangeable tuning nozzles. The tradeoff: A 1.94 dB spread from the target still leaves some peaks and dips.
Why pick the Rose Technics Star City 5 Pro: The median of 10 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.19 dB spread, and its mids sit within about 1.5 dB of target, so vocals and instruments sound natural. Watch for: Presence sits about 3.5 dB low with a 6 dB dip near 5.1 kHz, so vocals and instruments lose some bite.
Buy the Rose Technics Star City 5 Pro. Both are rated the same for sound quality, and it costs $5.50 less than the Kefine Delci AE.
Still deciding? The full Headphones rankings cover every ranked option.
A special edition of the Kefine Delci with a DLC dynamic driver and interchangeable tuning nozzles.
Amazon $85.49 eBay
The median of 10 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.19 dB spread, and its mids sit within about 1.5 dB of target, so vocals and instruments sound natural.
Amazon $79.99 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.
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Specifications Side By Side
| Kefine Delci AE | Rose Technics Star City 5 Pro | |
|---|---|---|
| Price | $85.49 | $79.99 |
| Ranked | #552 of 1291 in In-Ear Headphones | #582 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid |
| Drivers | 1 x 10mm dynamic (DLC) | 1 x dynamic + 2 x balanced armature |
| Harman Preference Score | 72 (median of 9 squig.link measurements, calibrated to AutoEQ) | 71 (median of 10 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.94 dB standard deviation | 2.19 dB standard deviation |
| Tonal Tilt | -0.66 (negative is warmer, positive brighter) | +0.35 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-4.4 dB at 30 Hz) |
| Impedance | - | 24 ohms |
| Sensitivity | - | 104 dB/mW |
| Frequency Response | - | 10Hz - 25kHz |
| Weight | - | 0.1 lbs (28 g) |
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 Kefine Delci AE from audioamigo, gadgetrytech, practiphile, regancipher, sl0the, soundcheck39, superreview, tonedeafmonk and vortexreviews; the Rose Technics Star City 5 Pro from aftersound, arn, audioamigo, boizoff, cqtek, hobbytalk, lumerion, mmagtech, pw, soundcheck39, soundignity, theaudiostore, treblewellxtended and vortexreviews, all via squig.link.
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