We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-19 · 7 min read · Independent comparison
If you want a lightweight in-ear sport earphone with a secure fit, aptX sound and an in-line remote, choose 1MORE iBFree in-Ear Earphones; if you need open-ear bone conduction that keeps your ears free to hear traffic, choose AYI True Bone Conduction.
• 1MORE iBFree — biggest strength: a proper in-ear design with a titanium-coated dynamic driver, aptX over Bluetooth 4.1 and an in-line remote for volume, playback and calls. Real, sealed sound in a 14 g package.
• 1MORE iBFree — biggest trade-off: it plugs your ear canal, so you lose awareness of what's around you, and IPX4 only covers light rain and sweat, not a soaking.
• AYI True Bone Conduction — biggest strength: genuine open-ear bone conduction that transmits sound through your cheekbones and leaves your ears completely open, with up to 11 hours of playtime and Bluetooth 5.3 dual pairing.
• AYI True Bone Conduction — biggest trade-off: bone conduction sound will never match the bass and isolation of a sealed in-ear driver, and the open design means outside noise comes in whether you want it or not.
• Who each pick is for: the 1MORE iBFree is for the gym-goer or runner who wants immersive sound and a locked-in fit; the AYI is for the cyclist, driver or outdoor athlete who puts situational awareness ahead of everything else.
The 1MORE iBFree is built around a single idea: bring real wireless audio quality to a workout without weighing you down. The driver is a dynamic type with a "PET + aerospace-level titanium" diaphragm, paired with a CSR Bluetooth chip and the aptX codec. That combination matters because aptX is designed to keep more of the original audio intact over Bluetooth than a basic codec does, so the music sounds fuller rather than thin and compressed. The frequency range runs 20 Hz to 20,000 Hz, which is the full audible span.
At 14 g it's genuinely light, and 1MORE has clearly thought about movement. The earpieces sit at an ergonomically inclined angle, and the box includes extra ear tips and sport grips so you can tune the fit until the earphones stay put. That's the difference between a pair you keep adjusting mid-run and a pair you forget about. The in-line box handles volume, playback, calls and charging, so your phone can stay in your pocket or armband. Battery life is 8 hours of playback and 240 hours of standby, with a 2-hour charge time and roughly 32 feet of Bluetooth range — enough to leave your phone on a bench and still move around the room.
So who should buy it? Anyone doing gym work, running, or indoor training who wants music that actually sounds like music and a fit that survives sweat and motion. The aluminum enclosure and red finish are a nice touch for people who care how their gear looks. Who should skip it? If you run on open roads, cycle in traffic, or need to hear a coach or a car coming, the sealed in-ear design works against you. And if you train hard enough to soak your gear, IPX4 is a light-rain-and-sweat rating, not a swimming or downpour rating. The 30-day warranty description is also shorter than many buyers expect, so treat this as a straightforward sport earphone rather than a long-haul investment.
The AYI True Bone Conduction takes the opposite approach entirely. It doesn't go in your ear at all. A bone conduction driver sends sound through your cheekbones, which leaves your ear canals completely open. In practice that means you hear your podcast and you hear the car behind you at the same time. For cyclists, runners on shared paths, drivers and anyone working out near traffic, that's not a gimmick — it's the whole reason to buy this style of headphone.
The frame is titanium and flexible, and AYI describes it as pressure-free, which addresses the classic complaint about bone conduction headsets: the vibration pad digging into your cheek after an hour. Weight is under 25 grams, so it disappears on your head rather than bouncing around. The company also claims a secure fit that stays put through running, cycling and gym work.
On the tech side, it runs Bluetooth 5.3 with dual pairing, so you can stay connected to your phone and your laptop and switch between them without repairing. Playtime is up to 11 hours on a charge, which is longer than the 1MORE's 8 hours. There are noise-canceling microphones for calls, which matters if you take meetings or calls outdoors — bone conduction sets are notoriously hard to hear on, so a dedicated mic array is a real feature. The white finish keeps it looking clean and sporty.
Who should buy it? Open-air athletes, commuters, drivers, and anyone who has given up on in-ear buds because they fall out or hurt. Who should skip it? If you want deep bass, isolation on a plane, or a truly private listening experience, bone conduction will disappoint you. Sound leaks out, ambient noise leaks in, and the low end is limited by physics. It's also worth noting the waterproofing claim is inconsistent in the listing — the headline says IPX4 while a feature line says IPX7-rated, so I'd treat it as sweat-and-rain resistant and not submerge it.
Side-by-Side: Which Should You Choose?
• Best for sound quality and bass → 1MORE iBFree in-Ear Earphones. A sealed in-ear with a titanium-diaphragm dynamic driver and aptX will beat an open bone conduction driver on richness and low end, full stop.
• Best for battery life → AYI True Bone Conduction. Up to 11 hours versus 8 hours on the 1MORE.
• Best for secure in-ear fit during hard training → 1MORE iBFree in-Ear Earphones. Sport grips, multiple tips and a 14 g body designed to stay in.
• Best for long-wear comfort without ear fatigue → AYI True Bone Conduction. Nothing enters your ear canal, so there's no pressure build-up over a long session.
• Best for Bluetooth modernity and device switching → AYI True Bone Conduction. Bluetooth 5.3 with dual pairing is a generation ahead of the 1MORE's 4.1.
• Best for calls on the move → AYI True Bone Conduction. Dedicated noise-canceling microphones are aimed squarely at outdoor voice pickup.
• Best for treadmill, gym and indoor sessions → 1MORE iBFree in-Ear Earphones. In that environment, isolation and bass are assets, not drawbacks.
In my opinion, the right pick comes down to one question: do you need to hear the world while you listen? If the answer is yes — cycling, road running, driving, working near traffic — I'd buy the AYI True Bone Conduction. The open-ear design, 11 hours of playtime, Bluetooth 5.3 dual pairing and lightweight titanium frame make it the more practical everyday outdoor headphone, and the comfort factor over long wear is hard to argue with. If the answer is no, and you want your music to actually hit, I'd buy the 1MORE iBFree. Its titanium-diaphragm driver, aptX audio and secure sport-grip fit make it the better choice for the gym, the treadmill and any session where immersion beats awareness. For most casual outdoor athletes, I'd lean AYI. For most indoor trainers, I'd lean 1MORE.
For outdoor running where you share space with traffic, the AYI is the safer pick because its open-ear bone conduction design keeps your ear canals clear so you can hear your surroundings. The 1MORE seals your ears and gives you better sound, but blocks outside noise.
The AYI wins on paper with up to 11 hours of playtime on a single charge. The 1MORE iBFree is rated at 8 hours of playback plus 240 hours of standby, with about a 2-hour charge time.
Not in my opinion — they're built for different things. The 1MORE's sealed in-ear fit and aptX codec deliver fuller, bassier audio. The AYI trades some richness for open-ear awareness, which is the point of bone conduction.
Yes. The 1MORE iBFree has an in-line remote with a microphone for calls and playback control. The AYI has built-in noise-canceling microphones aimed at keeping your voice clear in noisy outdoor settings. If calls are a priority, check the current price on Amazon and weigh which mic setup suits how you actually use them.
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