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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-06 · 7 min read · Independent comparison
If you want a sealed in-ear fit that blocks cabin drone and keeps everything private on a flight, choose Zolo True; if you need your ears left open so you can still hear gate announcements and your seatmate, choose ASIILOVI Open-Ear Headphones VG333.
• Zolo True — biggest strength: A sealed in-ear design with sound isolation and a graphene dynamic driver, so bass feels deep and outside noise gets pushed back. That is exactly what you want on a plane.
• Zolo True — biggest trade-off: Because it plugs the canal, you lose situational awareness. You will not hear the flight attendant, and you pretty much have to pull an earbud out to talk to anyone.
• ASIILOVI VG333 — biggest strength: A true open-ear fit. Nothing enters your ear canal, so you stay aware of boarding calls, announcements and the people around you.
• ASIILOVI VG333 — biggest trade-off: No noise control at all. On a loud airplane you will hear the engines right along with your audio.
• Zolo True is for you if you want isolation, strong bass and a long total battery figure from the case.
• ASIILOVI VG333 is for you if you want all-day comfort, maximum awareness and a newer Bluetooth version.
The Zolo True is an in-ear true wireless earbud built around one idea: seal the ear and deliver sound with as little interference as possible. The graphene driver is the headline piece of hardware here, and the design brief makes sense — a sound-tight seal is what gives small earbuds their bass punch and their isolation. If you have ever put in a pair of buds, turned on a podcast and felt the world drop away, that is the effect the Zolo is chasing on purpose.
Battery is where this pair gets genuinely interesting. A single charge gives you 8 hours, and the included charging case takes the total to 100 hours. The case itself takes about 10 hours to charge, and the buds take roughly 8 hours to top up. The practical read: if you charge the case before a trip, you are covered for a long-haul flight and then some, with no need to hunt for an outlet in the terminal. It also carries IPX5 sweat resistance and a hydrophobic nano-coating, so gym sessions and light rain are fine.
The fit is handled by what Zolo calls GripFit — the buds slide in and twist into a secure hold, with soft liquid-silicone tips and jackets in multiple sizes. Bluetooth 5 handles the connection, pairing is a single step, and a button press triggers the built-in smart assistant. Controls are touch-based media controls.
Who should skip it: if you need to stay aware of your surroundings, or if you simply dislike the feeling of something sitting inside your ear canal, this is the wrong shape for you. In-ear is in-ear, no matter how soft the silicone is. And if you want the newest Bluetooth generation, note that this one runs Bluetooth 5, not 5.3.
ASIILOVI Open-Ear Headphones VG333: Who It's For
The ASIILOVI VG333 goes the opposite direction entirely. It is a real open-ear earbud, not a bone-conduction headset — sound is delivered by air-directing technology through dual 16.2mm air-conduction dynamic drivers, with a frequency range of 20Hz to 20,000Hz. Nothing goes into your ear canal. The earpiece rests against the outer ear on an ultra-thin silicone hook, and the enclosure itself is silicone, which is why the whole thing feels light rather than clamped on.
The feature list is unusually explicit about what that buys you. Transparency and situational awareness are the point: you can hear an airline or subway announcement without removing anything, and the multi-point support system spreads the weight across the ear so the buds stay put during hard training. ASIILOVI also claims the VG333 solves sound leakage, which matters if you are listening in a quiet cabin or an office and do not want to broadcast your playlist.
Battery life is the other strong suit. You get over 20 hours from a single charge and 50 more from the compact case, for a claimed total of 70 hours, with a fast Type-C charge that fills the case in about 2 hours. Bluetooth 5.3 gives you the newer protocol and a stated range of up to 44 feet. Controls are touch-based, there is a mic for calls, and the set ships with the case, a Type-C cable and a manual. ASIILOVI lists a 1-year warranty, and the age range is "all ages."
Who should buy it: runners, cyclists, walkers, office workers who need to hear a colleague, and anyone flying who wants to hear the boarding call and still keep the audio going. It is also the friendlier pick for people who find in-ear buds uncomfortable or who want to avoid canal pressure.
Who should skip it: do not buy this expecting quiet. The spec sheet is blunt — there is no noise control, and no active noise cancellation. In a loud environment, that openness works against you. Also note there is no headphone jack; it is wireless only.
• Best for airplane isolation → Zolo True. The sealed in-ear fit with sound isolation is the only one of the two that pushes engine noise back.
• Best for hearing announcements in flight → ASIILOVI VG333. Open-ear transparency means you catch the gate change or the drink cart without touching your ears.
• Best for total battery capacity → Zolo True. 8 hours per charge, up to 100 hours with the case.
• Best for longest single-charge stamina → ASIILOVI VG333. Over 20 hours from one charge, versus 8 on the Zolo.
• Best for bass and a sealed, private listen → Zolo True. Graphene driver plus a sound-tight seal, with no leakage concern at all.
• Best for comfort over long stretches → ASIILOVI VG333. Silicone enclosure, no canal insertion, multi-point weight distribution.
• Best for newer wireless tech → ASIILOVI VG333. Bluetooth 5.3 and a stated 44-foot range, against Bluetooth 5 on the Zolo.
• Best for sweaty workouts and rain → Zolo True. IPX5 with a hydrophobic nano-coating is a specific claim the VG333 sheet does not make.
• Best for awareness while running or cycling → ASIILOVI VG333. That is the entire design premise.
• Best for a microphone on calls → both. Each lists hands-free calling and touch media controls, so the tiebreaker is your environment, not the mic.
If the trip I am packing for is a flight, I would buy the Zolo True. On a plane, isolation is the feature that matters most, and the Zolo's sealed in-ear design with sound isolation and a graphene driver is built for exactly that — deep bass, engine drone pushed down, and up to 100 hours of total playtime from the case so I never think about charging. The ASIILOVI VG333 is the better daily companion for running, cycling and staying aware, and I would genuinely recommend it to anyone who hates things in their ears. But for airplane use specifically, a noise-blocking fit beats an open one. Check the current price on Amazon before you commit.
No. ASIILOVI states plainly that open-ear headphones do not offer active noise cancellation, and the spec sheet lists no noise control. You get transparency instead, which is the opposite trade-off.
The Zolo True, in my opinion. Its sealed in-ear design and sound isolation physically reduce what reaches your ear, and it is the only one of the two designed to block outside sound rather than let it in.
Both have a mic and touch media controls, so neither is disqualified for calls. The difference is context: the Zolo keeps your call private in a sealed ear, while the VG333 lets you hear yourself and the cabin around you.
No. The VG333 has no jack — it is Bluetooth only, at version 5.3. The Zolo True is also wireless, using Bluetooth 5, with a Micro USB connection for charging.
The ASIILOVI VG333, at over 20 hours per charge versus 8 hours on the Zolo True. Across the whole system the Zolo wins, at up to 100 hours with its case against 70 hours for the VG333.
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