We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 7 min read · Independent comparison
If you want marathon battery life and a barely-there fit for running and the gym, choose mojawa StarClip Open Ear; if you need low-latency wireless for gaming plus a detachable safety strap for outdoor sessions, choose ASUS ROG Cetra Open. These two open-ear designs look similar on the surface — both skip the silicone tip, both keep your ears open to traffic and training partners — but they were clearly built for different owners. One is a featherweight daily driver. The other is a gaming headset that happens to live on your ears instead of your head.
• mojawa StarClip Open Ear — biggest strength: Up to 32 hours of playtime with the charging case, in a 5.5g clip-on body that weighs roughly a fifth of a AA battery and won't fight with glasses or earrings.
• mojawa StarClip Open Ear — biggest trade-off: No wired or low-latency dongle option — it's Bluetooth 5.4 only, so competitive gamers should look elsewhere.
• ASUS ROG Cetra Open — biggest strength: Dual-mode Bluetooth plus ROG SpeedNova 2.4GHz with a bundled USB-C dongle, which is the feature gamers actually feel in the first match.
• ASUS ROG Cetra Open — biggest trade-off: 16 hours of playtime and 11.4g per earbud — double the weight of the mojawa pair, and half the battery.
• Who the mojawa is for: Runners, gym-goers, glasses wearers, and anyone who wants to charge once and forget about it.
• Who the ROG is for: Gamers, phone-first users who want passthrough charging, and outdoor athletes who value the reflective neck strap.
The StarClip's whole pitch is "you forget you're wearing it." At 5.5g per earbud with soft silicone-padded clips, mojawa designed these around the pearl-clip silhouette — closer to ear jewelry than a headphone. The spec sheet calls out "no in-ear pressure" and a build that's friendly to people who wear earrings or glasses. That's the real audience here. If you've ever pulled off a headband-style open-ear headphone because it pinched the arms of your frames, this clip format sidesteps that entirely.
Sound-wise, mojawa uses a metallic spherical listening unit with 4D stereo panoramic sound, and the description mentions matrix audio processing with AI-driven leakage reduction — mojawa claims 90% less leakage than a conventional design. Take that number as a manufacturer claim, not an independent measurement, but the design logic is sound: a driver aimed at the ear canal from outside leaks less than one blasting sideways. For calls, AI ENC noise cancellation cleans up your voice on the mic side. There's also active noise cancellation listed in the spec sheet — unusual for an open-ear design, and worth understanding as a feature that shapes the sound rather than seals you off from the world.
Battery is the headline. Bluetooth 5.4 sips power, and the charging case carries the StarClip to 32 hours total, with about an hour to a full charge. For a daily runner logging 45 minutes a day, that's roughly a month between charges. The IP54 rating handles sweat and rain without drama, the 50-ohm impedance and 20Hz–20kHz dynamic driver cover the full audible range, and touch controls keep the surface clean. A two-year warranty and a rigid cushioned case round out the package.
ASUS ROG Cetra Open: Who It's For
The ROG Cetra Open is unapologetically a gamer's open-ear. The feature that defines it is dual-mode connectivity: standard Bluetooth for your phone, plus ROG SpeedNova 2.4GHz through a bundled USB-C dongle for low-latency audio on PC, handhelds, and consoles with USB-C. That dongle is the difference between "decent open-ear earbuds" and "open-ear earbuds I'd actually game on." The USB-C passthrough charging detail matters too — the dongle can pass power through to your phone without killing the audio stream, which is a small thing that becomes a big thing on a long session.
Audio hardware is serious for the category: 14.2mm DLC-coated diaphragm drivers, 16-ohm impedance, 20Hz–20kHz. DLC (diamond-like carbon) coating is used to stiffen the diaphragm so it distorts less at high volume — that usually shows up as cleaner treble and tighter bass. ASUS pairs it with Phantom Bass for low-end boost and an Immersion Mode that reduces outside noise. There's active noise cancellation listed as well, which on an open-ear design is best understood as processing that reshapes what you hear rather than sealing the world out.
The physical design tells you who ASUS built this for. Soft ear hooks hold the 11.4g earbuds in place, and tactile physical buttons give you real clicks during a sprint or a match — no guessing at a touch zone. The detachable reflective neck strap is the clever bit: it keeps the earbuds from hitting the pavement if one slips, and the reflective material adds visibility for night runs or evening bike rides. The RGB logo with Aura RGB customization is pure ROG, and if that aesthetic isn't your thing, it's a feature you're paying for and ignoring.
Battery is 16 hours of continuous use, with a fast-charge claim of 15 minutes for 3 hours of playback. That's a genuinely useful top-up window before a commute or a raid night, but the total is half the mojawa's figure. The IPX5 rating covers sweat and rain — note that IPX5 is water-jet resistant but not dust-rated, while the mojawa's IP54 covers both splash and dust. The ROG carries a one-year warranty versus mojawa's two.
Who should skip it? Anyone who wants maximum battery per charge, the lightest possible fit, or who never games and doesn't need a 2.4GHz dongle. At 11.4g per earbud, it's twice the weight of the StarClip, and if you're sensitive to ear-hook pressure over a long day, the clip design wins on comfort.
• Best for battery life → mojawa StarClip Open Ear. 32 hours with the case versus 16 hours for the ROG.
• Best for gaming and low latency → ASUS ROG Cetra Open. The bundled 2.4GHz dongle is the whole point; the mojawa has no equivalent.
• Best for all-day comfort and glasses wearers → mojawa StarClip Open Ear. 5.5g per earbud with silicone-padded clips beats 11.4g ear hooks for most people over long sessions.
• Best for outdoor safety and drop protection → ASUS ROG Cetra Open. The detachable reflective neck strap is a genuinely thoughtful feature for night runners and cyclists.
• Best for dust and splash resistance → mojawa StarClip Open Ear. IP54 covers dust and water spray; the ROG's IPX5 covers water only.
• Best for controls you can use by feel → ASUS ROG Cetra Open. Physical buttons beat touch panels when your hands are sweaty or gloved.
• Best for fast top-ups → ASUS ROG Cetra Open. 15 minutes for 3 hours is a real convenience; the mojawa takes about an hour for a full charge.
• Best for a phone-first daily driver → mojawa StarClip Open Ear. Bluetooth 5.4, a cushioned case, and a two-year warranty make it the simpler long-term companion.
For most people reading this, I'd buy the mojawa StarClip Open Ear. The 32-hour battery, the 5.5g clip fit, and the IP54 rating line up with what open-ear earbuds are actually for — running, workouts, and all-day wear — and the two-year warranty suggests mojawa expects them to last. I'd only steer you to the ASUS ROG Cetra Open if gaming is a real part of your week. The 2.4GHz dongle, physical buttons, and reflective neck strap are features you can't fake, and if you'll use them, the shorter 16-hour battery is a fair trade. Gamers: ROG. Everyone else: mojawa.
For pure running, yes in my opinion — the 5.5g clip design and IP54 dust-and-splash rating suit daily training better than 11.4g ear hooks. The ROG pulls ahead for night runs specifically because of its reflective detachable strap.
It works with both. It supports standard Bluetooth for phones and the ROG SpeedNova 2.4GHz mode via the bundled USB-C dongle for PCs, handhelds, and consoles. The dongle also supports passthrough charging to your phone.
Both list active noise cancellation, but they approach it differently. The mojawa adds AI ENC for call clarity; the ROG uses Phantom Bass and an Immersion Mode to shape what you hear. Neither seals your ears — that's the nature of open-ear design — so treat both as sound-shaping rather than true isolation.
I don't publish prices here because they change often. Use the "Check latest price on Amazon" button on this page to see the current figures for both before you decide — the value math shifts depending on what each is going for on the day you buy.
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