Short answer: a tie on sound quality. Both are rated 4.1/5 (#226 and #232 of 450 in-ear headphones) at nearly the same price ($32.99 vs $31.99), so choose on features and fit.
Buy the KZ Axas or the NF Audio RA05 on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| KZ Axas | NF Audio RA05 | |
|---|---|---|
| Price | $32.99 | $31.99 |
| Ranked | #226 of 450 in In-Ear Headphones | #232 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 75 (median of 3 squig.link measurements, calibrated to AutoEQ) | 75 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.66 dB standard deviation | 1.87 dB standard deviation |
| Tonal Tilt | -0.66 (negative is warmer, positive brighter) | +0.38 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.8 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x dynamic | 1 x 6mm dynamic |
| Impedance | 20 ohms | 16 ohms |
| Sensitivity | 107 dB/mW | 102 dB/mW |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | 15Hz - 30kHz (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
Related Headphone Comparisons
How KZ Axas compares with other leading options:
- KZ Axas vs Tripowin Vivace
- KZ Axas vs SGOR Luna
- NF Audio RA05 vs Tripowin Vivace
- NF Audio RA05 vs SGOR Luna
- CCA Polaris vs TRN MT1 Pro
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Headphones In Full
KZ Axas: $32.99 Amazon eBay
Full KZ Axas review and specifications →
| Released | Jan 2026 (9 months ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 1.66 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x dynamic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 75 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 20 ohms |
| Sensitivity | 107 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) |
| Tonal Tilt | -0.66 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
NF Audio RA05: $31.99 NF Acous eBay
Full NF Audio RA05 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 1.87 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 6mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 15Hz - 30kHz (Manufacturer specified) |
| Harman Preference Score | 75 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 102 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.8 dB at 30 Hz) |
| Tonal Tilt | +0.38 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons