Short answer: the Letshuoer S08. Both are rated 3.1/5 for sound quality (#966 and #965 of 1291 in-ear headphones), and the Letshuoer S08 costs $99 against $119.99 for the AFUL Explorer, so with nothing between them on sound quality, price settles it.
Why pick the AFUL Explorer: Bass extends flat to 20 Hz and sits on target across 38 measurements, giving full, even low end without boom. The catch: The presence region is about 7 dB low with an 8.6 dB dip near 4.1 kHz, the deepest in this group, so vocals sound distant and instruments lose definition.
What the Letshuoer S08 does well: Its 13 mm planar driver keeps bass full and extended to 20 Hz across 29 measurements, with lower mids close to target. The tradeoff: The presence region is about 6 dB low with a 7.7 dB dip near 3.5 kHz, so vocals sound recessed and lack clarity.
Buy the Letshuoer S08. Both are rated the same for sound quality, and it costs $20.99 less than the AFUL Explorer.
Still deciding? The full Headphones rankings cover every ranked option.
Bass extends flat to 20 Hz and sits on target across 38 measurements, giving full, even low end without boom.
Amazon $119.99 eBay
Its 13 mm planar driver keeps bass full and extended to 20 Hz across 29 measurements, with lower mids close to target.
Amazon $99.00 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
| AFUL Explorer | Letshuoer S08 | |
|---|---|---|
| Price | $119.99 | $99.00 |
| Ranked | #965 of 1291 in In-Ear Headphones | #966 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Planar |
| Drivers | 1 x 8mm dynamic + 2 x balanced armature | 1 x 13mm planar magnetic |
| Impedance | 26 ohms | 26 ohms |
| Sensitivity | 108 dB/mW | - |
| Frequency Response | 10Hz - 30kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 63 (median of 38 squig.link measurements, calibrated to AutoEQ) | 63 (median of 29 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.68 dB standard deviation | 2.73 dB standard deviation |
| Tonal Tilt | -0.99 (negative is warmer, positive brighter) | -0.75 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) |
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 AFUL Explorer from aden, adri-n, atechreviews, audioamigo, awsmdanny, banzai1122, bassaudio, boizoff, breampike, bryaudioreviews, dvewlsh, eplv, fahryst, flare, gadgetrytech, hadoe, hoods, hu-fi, iemocean, iemworld, jaytiss, koi, kuping-sensi, listener, lown-fi, lumerion, obodio, practiphile, precog, silicagel, sl0the, soundcheck39, soundignity, superreview, theaudiostore, therollo9, timmyv and treblewellxtended; the Letshuoer S08 from achoreviews, aftersound, atechreviews, audioamigo, awsmdanny, banzai1122, breampike, cqtek, csi-zone, eplv, fahryst, flare, gadgetrytech, hadoe, hbb, jaytiss, koi, kuping-sensi, listener, lown-fi, lumerion, obodio, practiphile, pw, soundcheck39, soundignity, superreview, tonedeafmonk and vortexreviews, all via squig.link.
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