We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-01 · 6 min read · Independent comparison
If you want a barely-there, semi in-ear bud you can leave in all day at your desk and still hear the room around you, choose eleror Invisible Mini; if you need deeper bass, real call-noise handling and a waterproof rating that survives sweat and rain, choose xiwxi Earbuds.
• eleror Invisible Mini – biggest strength: a genuinely tiny, ambidextrous semi in-ear design (19 mm long, 3 g per bud) built for discreet, all-day listening with ambient awareness.
• eleror Invisible Mini – biggest trade-off: no active noise cancellation, a semi in-ear seal that lets sound in, and a stated battery figure that shifts between the bullet points and the spec sheet.
• xiwxi Earbuds – biggest strength: a full in-ear seal with 10 mm dynamic drivers, ENC call noise cancelling, IPX8 waterproofing and up to 30 hours total with the case.
• xiwxi Earbuds – biggest trade-off: it's a bigger, more traditional in-ear bud, so it blocks more of the world out and isn't the one you forget you're wearing.
• Pick eleror Invisible Mini if you want an office/commute bud for music, audiobooks and calls without sealing off your surroundings.
• Pick xiwxi Earbuds if you want bass-forward sound, clearer calls in noisy places, and a bud that shrugs off sweat, rain and workouts.
The Invisible Mini (model Pro X6s) is built around one idea: stay small and stay aware. Each bud is 19 mm long — the sheet describes it as about the size of a penny — and 16 mm wide, weighing just 3 g. The shape is semi in-ear, meaning it sits at the opening of your ear canal rather than plugging it. Sound gets in, and so does the room. For anyone who works in an open office, walks a busy street, or needs to hear a colleague or a traffic light, that's the whole point.
The other genuinely useful design choice is that the two buds are identical and ambidextrous. You can pull one out, drop it in either ear and run mono mode for calls or driving, then put the second one in for stereo. Touch control is tap-based rather than press-based, so you're not shoving the bud deeper into your ear every time you pause a track. The spec sheet lists a 20 Hz–20 kHz frequency range, 16 ohm impedance, 102 dB sensitivity, a dynamic driver and Bluetooth with a 15 m rated range.
Battery is where you need to read carefully. The bullet points claim up to 5 hours per charge with two extra charges in the case; the description mentions 6 hours plus three case charges; the spec sheet lists 4.5 hours average life and 10 hours for the case. I'd plan around the lower end — roughly a workday plus a commute, topped up from the pocket-size case (34 g). The buds are also rated IPX7. It's a plastic build with a nude finish, a 1-hour charge time, and a 1-year warranty.
Who should buy it: desk workers, audiobook listeners, drivers who want one bud in, and anyone who finds normal in-ear tips uncomfortable after an hour. Who should skip it: bass chasers, gym-goers who need a locked-in seal, and anyone expecting active noise cancelling — the sheet explicitly lists noise control as none.
The xiwxi N09 goes the other direction. It's a full in-ear design with rounded tips and soft silicone ear caps, and it ships with three sizes of eartips (medium pre-installed) so you can chase a proper seal. That seal is what gives you passive noise reduction, and it's also what makes the sound fuller. Inside are 10 mm dynamic drivers with a composite titanium dioxide diaphragm, tuned for what the sheet calls premium deep bass with clear mids and highs.
Calls are the second pillar. There are four microphones with ENC (environmental noise cancelling) to pull your voice out of background noise, and the controls list active noise cancellation as a feature. Bluetooth 5.3 handles the connection, with HFP, HSP, A2DP and AVRCP supported, a rated 10 m range, and one-step pairing — take them out of the case and they reconnect to your phone automatically. Each bud weighs 4.8 g, and the enclosure is silicone.
Durability is where xiwxi clearly pulls ahead on paper: IPX8. That's a rating for sustained water immersion, not just splashes, so sweat, rain and a dropped bud in a puddle are all within spec. Battery is a 1.5-hour charge for up to 6 hours of playback, with up to 30 hours total when you count the case, plus power indicator lights so you can see where you stand. Charging is over USB-C, and there's a 1-year warranty.
Who should buy it: commuters, gym and outdoor users, people who take a lot of calls, and anyone who wants more low end than a semi in-ear bud can physically deliver. Who should skip it: people who hate the plugged-ear feeling, and anyone who needs to stay aware of their surroundings while listening.
• Best for all-day comfort and awareness → eleror Invisible Mini. Semi in-ear, 3 g per bud, nothing pressing on your canal.
• Best for bass and full sound → xiwxi Earbuds. 10 mm composite drivers in a sealed in-ear fit.
• Best for calls in noisy places → xiwxi Earbuds. Four mics with ENC and active noise cancellation listed, versus no noise control on the eleror.
• Best for workouts, rain and sweat → xiwxi Earbuds. IPX8 immersion rating beats the eleror's IPX7.
• Best for total battery runtime → xiwxi Earbuds. Up to 30 hours with the case against roughly 15–20 hours for the eleror, depending on which figure you trust.
• Best for one-bud mono use → eleror Invisible Mini. The two buds are identical and fully ambidextrous, so either one works in either ear.
• Best for a discreet, almost invisible look → eleror Invisible Mini. 19 mm long in a nude finish, designed to disappear.
• Best for Bluetooth range → eleror Invisible Mini. 15 m rated versus 10 m on the xiwxi — a small but real edge if you leave your phone on a desk.
If I had to pick one, I'd buy the xiwxi Earbuds. In my opinion the sealed in-ear fit, the 10 mm drivers, the ENC call setup and the IPX8 rating cover more of what most people actually do with earbuds — commuting, calling, working out. The eleror Invisible Mini is the better choice only for a narrower job: staying aware, staying comfortable, and staying invisible at a desk. If that's your day, buy the eleror. Otherwise the xiwxi is the safer all-rounder.
how to connect true wireless stereo earbuds
Take both buds out of the charging case. The xiwxi set enters pairing mode automatically when removed and reconnects to the last paired device; the eleror uses Bluetooth too. Then open your phone's Bluetooth menu, select the earbuds, and you're connected. The xiwxi supports HFP, HSP, A2DP and AVRCP.
how to use true wireless stereo earbuds
Both models use touch controls. On the eleror, tap once to play/pause or answer a call, double tap for volume, triple tap to skip tracks. The xiwxi uses smart touch for volume, play/pause, track switching, calls and voice assistant. Use both buds for stereo; the eleror also runs mono from either bud.
how to charge true wireless stereo earbuds
Drop the buds back into the charging case and charge the case itself. The eleror charges in about 1 hour and its case adds roughly 10 hours; the xiwxi charges in about 1.5 hours and its case brings total playtime to around 30 hours, with power indicator lights and USB-C.
how to turn on true wireless stereo earbuds
Most true wireless buds, including these two, power on automatically when you lift them out of the charging case and power down when you put them back. If they've gone idle, a tap on the touch panel wakes them and resumes the connection.
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: TCXCEO AI Translation Earbud vs Freetune Open-Ear Clip-On Earbuds, Jelly Tang Male vs SNANSHI Aux: Aux Wired Headphones, ASMRBAND Sleep Headphones Bluet00th vs TuneFlux Kids Headphones, A+ Scholars Kids vs SocialFreddy Pulse