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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 6 min read · Independent comparison
• ABCDONG Earbuds Open Ear – biggest strength: A smart LED power display on the case that shows remaining battery in real time, paired with 42 hours of total playtime and Bluetooth 5.4.
• ABCDONG Earbuds Open Ear – biggest trade-off: Single-charge life is only about 4 hours, and the open-ear fit means you may need to nudge the volume up for the fullest sound.
• Cujiadi Open-Ear Sports – biggest strength: A clip-on ergonomic fit with IPX5 sweat resistance and button controls that won't misfire when your hands are sweaty.
• Cujiadi Open-Ear Sports – biggest trade-off: Bluetooth 5.3 and a 1-hour charge time, with no total playtime figure stated beyond a 5-hour average battery life.
• Who each is for: ABCDONG suits commuters, desk workers and casual listeners who want to see their battery at a glance; Cujiadi suits runners, boxers and gym-goers who want a locked-on clip and simple physical buttons.
The ABCDONG Earbuds Open Ear (model M79) is a clip-on, open-ear set built around one idea: keep your ears free while keeping you informed. The buds sit gently on the ear rather than inside the canal, so when you're running or cycling outdoors you can still hear approaching cars and other hazards. That's the whole point of the open-ear format, and ABCDONG leans into it hard. One thing worth flagging: the brand itself notes you may need to raise the volume slightly to get the best sound, which is normal for this style of headphone.
Where it stands out is the charging case. The smart LED power display shows remaining battery in real time, so you're never guessing whether you have juice for the ride home. On a single full charge you get up to 4 hours, and the case adds enough for a claimed 42 hours total. Under the hood you get 16.2mm drivers with directional audio, Bluetooth 5.4 for fast, stable pairing, and automatic reconnection to your last device. Open the lid, grab a bud, tap "M79" once in your Bluetooth list, and you're set for every session after that. Controls are touch-based, and the set includes hybrid noise cancellation for calls.
Who should skip it: if you train hard and sweat heavily, or you hate touch controls that can misread damp fingers, this isn't the pick. The 4-hour single-charge figure is also modest if you plan to wear them all day without docking the case. And if you want a button under your thumb instead of a tap surface, look at the Cujiadi instead.
Cujiadi Open-Ear Sports: Who It's For
The Cujiadi Open-Ear Sports (model M47) is aimed squarely at movement. The clip-on ear style is designed so the buds "can't shake off" during running, skipping rope, dancing or boxing, and the ergonomic shape is meant to stay comfortable through long sessions. It's rated IPX5 sweat-resistant, which covers splashes and perspiration, and the control scheme is push-button rather than touch. That matters more than people think: when your hands are wet or you're mid-set, a real button gives you a definite click instead of a hopeful tap.
On audio, Cujiadi talks up a 9D surround presentation with directional transmission that adjusts the sound beam angle to push audio toward the ear canal and reduce leakage, plus ENC intelligent noise reduction and 360-degree directional microphones for calls. You also get smart memory connection, so it reconnects to your last paired device automatically. Bluetooth 5.3 holds a connection within roughly 10 meters, and Cujiadi lists compatibility with iOS and Android phones, tablets, TVs, computers, laptops and smartwatches.
The case carries an HD digital display too, showing battery level for the left bud, right bud and the case itself at a glance. Average battery life is listed at 5 hours per charge, with a 1-hour charge time. Note that Cujiadi doesn't state a total playtime figure for the case, so if maximum hours matter to you, that's a gap in the spec sheet rather than a guaranteed number.
Who should buy it: runners, boxers, dancers and gym regulars who want a secure clip, sweat resistance and physical buttons. Who should skip it: anyone who wants the longer stated total runtime and newer Bluetooth version of the ABCDONG, or who prefers the feel of touch controls.
Side-by-Side: Which Should You Choose?
• Best for a secure fit during high-movement workouts → Cujiadi Open-Ear Sports (clip-on design explicitly built not to shake off).
• Best for real-time battery visibility on both buds and case → Cujiadi Open-Ear Sports (HD digital display shows each bud plus the case).
• Best for the newest Bluetooth standard → ABCDONG Earbuds Open Ear (Bluetooth 5.4 vs 5.3).
• Best for sweaty hands and button-press control → Cujiadi Open-Ear Sports (push buttons instead of touch).
• Best for water resistance rating → Cujiadi Open-Ear Sports (IPX5 sweat-resistant vs no IP rating stated for ABCDONG).
• Best for call clarity features → ABCDONG Earbuds Open Ear (hybrid noise cancellation and directional audio technology).
• Best for casual all-day desk and commute wear → ABCDONG Earbuds Open Ear (lighter, breathable open-ear fit).
In my opinion, the ABCDONG Earbuds Open Ear is the one I'd buy if I had to pick one. The 42-hour total playtime and the real-time LED display on the case solve the single most annoying problem with wireless earbuds: not knowing how much battery is left. Bluetooth 5.4 and the 16.2mm drivers round out a package that fits commuting, working and casual listening.
That said, if your priority is hard training — running, boxing, sweaty sessions — the Cujiadi Open-Ear Sports is the smarter call for its clip-on security, IPX5 rating and physical buttons. Pick based on how you'll actually use them, and check the current price on Amazon before you decide.
FAQ
are earbuds considered electronics
can you connect earbuds to a tv
Often, yes. Cujiadi specifically lists TVs among compatible Bluetooth devices, along with computers, laptops, tablets and smartwatches. ABCDONG uses Bluetooth 5.4 and pairs through your device's Bluetooth list, so any Bluetooth-enabled TV or streaming device should work the same way.
should i get black or white earbuds
That's purely a style call, since color doesn't affect performance. ABCDONG comes in dark grey with a bright black case, while Cujiadi is listed in black. Pick whichever matches your gear and your taste — the specs are identical within each model.
which has better battery for long workouts
Cujiadi lists a 5-hour average battery life per charge versus ABCDONG's 4 hours, so Cujiadi lasts longer in a single session. For total runtime across charges, ABCDONG states 42 hours with its case, while Cujiadi doesn't publish a total playtime figure.
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