We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 6 min read · Independent comparison
If you want a featherweight half-in-ear bud built for side sleepers and all-night wear, choose APZXTRK Earbuds; if you need maximum battery life, a stronger Bluetooth signal and serious splash protection for workouts, choose Cillso Earbuds. These two budget wireless earbuds look similar on the shelf, but they are built around completely different priorities — one optimizes for comfort and a barely-there fit, the other for endurance, bass and durability. Below I break down what each spec sheet actually tells a buyer.
• APZXTRK Earbuds — biggest strength: an ultra-light half-in-ear shape with a 2.26 oz total weight and a thin profile designed specifically for side sleepers and long wear sessions.
• APZXTRK Earbuds — biggest trade-off: battery life is modest, at roughly 4–6 hours per charge (6 hours listed in the spec sheet), and noise control is passive only, so it will not silence a noisy commute.
• Cillso Earbuds — biggest strength: up to 8 hours on a single charge and 40 hours total with the case, plus an IP7 waterproof rating and a 14.2mm driver tuned for bass.
• Cillso Earbuds — biggest trade-off: the buds are standard in-ear rather than half-in-ear, so they are not marketed for sleeping, and the 30 g case is bulkier than the APZXTRK case.
• Who each pick is for: APZXTRK → sleepers, light sleepers and people who hate the "plugged" feeling of in-ear tips. Cillso → gym-goers, runners, commuters and anyone who wants to charge as rarely as possible.
The APZXTRK Earbuds (model MiNi15) are the comfort-first option here, and the spec sheet is unusually specific about that. The half in-ear shape combined with a claimed 2.26 oz weight means the bud sits at the edge of the ear canal rather than sealing it. In my opinion, that is the single most important detail on this sheet: it is exactly the design people reach for when regular in-ear tips cause soreness after an hour.
The rest of the sheet backs up the daily-driver angle. You get Bluetooth with a listed 33-foot range, touch controls for playback, volume and calls, USB-C charging, and a quick 1-hour charge time for up to 6 hours of playback. The charging case has a real-time battery display, and the description mentions over 30 hours of total playback from the case. Audio is handled by a dynamic driver with 32 ohm impedance and a 20Hz–20kHz range, with passive noise cancellation and ENC on the mic for calls.
Who should buy it? Side sleepers first and foremost. If you listen to podcasts or white noise in bed and wake up with aching ears from normal buds, this is the design that addresses that directly. It also suits office use, light workouts and commuting, where a loose, airy fit is more comfortable than a sealed one.
Who should skip it? If you want heavy bass, active noise cancellation, or you regularly run in the rain, look elsewhere. The passive noise cancellation means loud environments stay loud, and there is no waterproof rating listed, so I would not count on it for sweaty gym sessions or wet weather.
The Cillso Earbuds (model H97) go the opposite direction: they are built for endurance and output. The headline numbers are 8 hours of playback per charge and 40 hours total with the case, charged over USB-C in about 1.5 hours. For someone who charges their case once a week and forgets about it, that is the difference-maker. The case also has an LED display so you can see the remaining level at a glance instead of guessing.
Audio is where the spec sheet gets interesting. Cillso lists a 14.2mm dynamic driver — noticeably larger than typical budget buds — covering 20Hz to 20kHz with 110 dB sensitivity and 32 ohm impedance. The tuning is described around 3D bass stereo sound, so if you want low-end presence from a cheap pair, this is the one aimed at you. There are four ENC microphones with an algorithm that the brand says cuts background noise on calls by up to 85%, which matters if you take meetings on a busy street.
Durability is the other differentiator: IP7 waterproofing against splashes, sweat and rain, plus a magnetic closure in the case that keeps the buds from falling out. The ventilation-style ergonomic structure is designed to reduce ear-canal pressure, and each bud is listed at just 4 grams.
Who should buy it? Runners, gym users, cyclists and commuters who sweat or get caught in weather. Also anyone who wants long battery life, more bass, and Bluetooth 5.4 with a listed 15-metre range and auto-pairing when the case opens.
Who should skip it? If your main use case is sleeping on your side, this is not the shape for it. The buds are standard in-ear, and there is no claim about lying on them. The 30 g case is also heavier than the APZXTRK case, which matters if you carry it in a pocket all day.
Side-by-Side: Which Should You Choose?
• Best for sleeping and side sleepers → APZXTRK Earbuds. The half in-ear shape and 2.26 oz weight are explicitly designed for all-night wear.
• Best for battery life → Cillso Earbuds. Up to 8 hours per charge and 40 hours total, versus roughly 6 hours and about 30 hours total on the APZXTRK.
• Best for workouts and rain → Cillso Earbuds. IP7 waterproofing is listed; APZXTRK has no waterproof rating in its spec sheet.
• Best for bass and loud listening → Cillso Earbuds. A 14.2mm driver with 110 dB sensitivity is built for punch; APZXTRK uses a smaller dynamic driver tuned for clarity.
• Best for calls in noisy places → Cillso Earbuds. Four ENC microphones with an 85% background-noise reduction claim beat the single ENC setup on the APZXTRK.
• Best for a barely-there, airy fit → APZXTRK Earbuds. The half in-ear design does not seal the canal, which many people find more comfortable for hours at a time.
• Best for quick top-ups → APZXTRK Earbuds. A 1-hour charge time is faster than the 1.5 hours listed for the Cillso.
• Best for a lighter case in your pocket → APZXTRK Earbuds. The case is listed at 1.5 oz versus 30 g for the Cillso.
If I had to pick one, I would buy the Cillso Earbuds. In my opinion, the 40-hour total battery life, IP7 waterproofing and the bigger 14.2mm driver make it the more versatile everyday pair — it covers the gym, the commute and long workdays without fuss. The APZXTRK is the better specialist tool, and if you genuinely sleep with earbuds in, I would choose it instead without hesitation. But as a single do-everything pair, Cillso wins on the specs that matter most day to day. Check the current price on Amazon before you commit, since both sit in the budget tier and the gap is usually small.
Yes, in my opinion. The APZXTRK is a half in-ear bud with a 2.26 oz weight and a thin profile explicitly aimed at side sleepers. The Cillso is a standard in-ear design with no sleep-related claim, so it is the weaker choice for lying on your side.
Cillso. Its spec sheet lists 8 hours per charge and 40 hours total with the case, while APZXTRK lists up to 6 hours per charge and roughly 30 hours total from the case. If you hate charging, Cillso is the pick.
The Cillso buds carry an IP7 waterproof rating covering splashes, sweat and rain, and the case has a magnetic closure to keep them secure. The APZXTRK has no listed waterproof rating, so I would keep those dry.
Cillso. It uses four ENC microphones with a stated algorithm that reduces background noise like wind and traffic by up to 85%. APZXTRK also has ENC for calls, but with a simpler setup and no comparable noise-reduction figure.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: Xmenha X55 vs APZXTRK Mini Invisible: Wireless Sleep Earbuds, Yunseity Heart Shaped Earbuds vs Handzee Earbuds, ATEVIX Watch vs JKNKCO NE75: TWS Earbuds