How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 6 min read · Independent comparison
• eleror Earbuds biggest strength: A 14mm body that weighs just 3g per bud, wrapped entirely in soft silicone, plus a charging case that stretches total playtime to a claimed 30 hours.
• eleror Earbuds biggest trade-off: The 6mm dynamic driver is small, so bass will be modest, and the 1.5-hour charge time is not fast.
• AIKESI Mini biggest strength: A flat, non-in-ear design aimed squarely at side sleepers, with a 3-year warranty that signals confidence in the build.
• AIKESI Mini biggest trade-off: The data sheet lists no battery life, no driver size, and no Bluetooth range, so you're buying on comfort promise more than on specs.
• Who eleror Earbuds is for: Anyone who wants discreet earbuds for commuting, work calls, or light sleep, and who values a known battery figure.
• Who AIKESI Mini is for: Side sleepers and small-eared users who prioritize lying on their ear without pressure and want long-term warranty coverage.
The eleror X9 is a comfort play first and an audio play second. The 14mm body is smaller than a U.S. penny and each bud weighs 3g, which is about as light as in-ear audio gets. That matters if normal earbuds make your ears ache after an hour. The whole shell is silicone, not just the tip, so every contact point is soft. For side sleepers, that silicone skin is the difference between waking up annoyed and waking up fine.
On the audio side you get a 6mm dynamic driver, 16 ohm impedance, and 90dB sensitivity. That combination is easy to drive, so a phone will get them loud without strain. The trade-off is physics: a 6mm driver moves less air than a 10mm one, so expect clear mids and vocals rather than thumping bass. The ENC microphone is the more interesting spec for daily use — it helps reduce background noise on calls, which is exactly what you want if you take meetings from a coffee shop.
Buy it if: you want one pair of tiny earbuds that handles calls, podcasts, commutes, and occasional side sleeping without a battery anxiety. The touch controls (double-tap play/pause, triple-tap volume, single tap to answer, long press to reject) cover the basics without needing your phone.
Skip it if: you're an audiophile chasing bass, or you need truly flat earbuds for full-night side sleeping. The 6mm driver won't satisfy a basshead, and while the silicone is soft, these are still in-ear buds that sit in the concha.
AIKESI Mini: Who It's For
The AIKESI SK35 is designed around a single problem: sleeping on your side with earbuds in. The pitch is a "pressure-free non-in-ear design" — the buds rest gently instead of inserting deep, which is the opposite approach from a traditional in-ear. If you've ever woken up with a sore ear canal from rolling onto a bud, that's the exact pain this design targets.
The second angle is size. AIKESI markets these to women, teens, and anyone with small ear canals, with a flat shape that stays hidden. The ergonomic shell is meant to hold steady through turning and light movement, so they don't pop out mid-sleep. That's a real concern with tiny buds — small usually means slippery.
Sound is framed around relaxation rather than critical listening: white noise, meditation, podcasts, calming music. The spec sheet backs that up with 38 ohm impedance and 98dB sensitivity. Higher impedance than the eleror means they'll need a bit more volume from your phone, but 98dB sensitivity keeps them easy enough to drive. Sound isolation is passive, done by fit, not active cancellation.
The standout spec is the 3-year free warranty, which is long for this category and suggests AIKESI expects these to survive nightly use. What the data sheet does not tell you is battery life, driver size, or Bluetooth range — those simply aren't listed. If runtime is your deciding factor, that's a genuine gap.
Buy it if: you're a side sleeper, you have small ears, or you want buds that stay put overnight for white noise and sleep audio. The flat, non-insertion fit is the whole point.
Skip it if: you need a documented battery figure before buying, or you want buds for calls and commuting where microphone performance matters. ENC isn't mentioned in the AIKESI sheet, so don't count on call clarity as a strength.
• Best for side sleeping → AIKESI Mini. The flat, non-in-ear design is built for pillow pressure; eleror is comfortable but still inserts.
• Best for battery confidence → eleror Earbuds. Up to 30 hours total with the case and a clear 5-6 hour per-charge figure beats an unlisted runtime.
• Best for calls and meetings → eleror Earbuds. The ENC microphone is a stated feature; AIKESI doesn't mention one.
• Best for very small ear canals → AIKESI Mini. Explicitly targeted at small ears, women, and teens.
• Best for all-day wear and travel → eleror Earbuds. 3g per bud, full silicone shell, and a 42g pocket case make them easy to carry and forget.
• Best for long-term peace of mind → AIKESI Mini. A 3-year warranty versus eleror's 1 year.
• Best for bass and dynamic sound → neither, honestly. A 6mm driver on the eleror and no listed driver on the AIKESI means both prioritize comfort over punch.
• Best for discreet daytime use → eleror Earbuds. The skin-tone nude finish and penny-sized body keep them nearly invisible.
If I had to pick one, I'd buy the eleror Earbuds. In my opinion, the combination of a 3g silicone-wrapped body, a documented 30-hour total playtime, ENC calling, and a genuinely pocketable case makes it the more useful everyday pair. The AIKESI Mini wins on one thing that matters a lot to a specific buyer — flat, pressure-free side sleeping — and its 3-year warranty is a real plus. But if you want earbuds that work for calls, commutes, workouts, and the occasional nap, eleror covers more ground with fewer unknowns in the spec sheet.
For dedicated side sleeping, yes. AIKESI's flat, non-in-ear design is purpose-built to reduce pillow pressure, while eleror is a soft in-ear bud. If you only occasionally sleep with buds in, eleror's silicone fit is likely comfortable enough.
We only have a figure for eleror: 5-6 hours per charge and up to 30 hours with the case. AIKESI doesn't list battery life in its product information, so if runtime is critical, eleror is the safer choice.
eleror is the better bet — it lists an ENC microphone designed to reduce background noise on calls. AIKESI focuses on sleep audio and doesn't mention a call microphone.
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See also: Molufeibe Open Ear Earbuds vs eleror Invisible Mini Earbuds, AIKESI Mini vs Xmenha 2, earbuds vs earpods