How We Research
Updated: 2026-10-02 · 7 min read · Independent comparison
If you want an open-ear, sweat-resistant set for running, cycling and workouts, choose BANIGIPA Open Ear True; if you need marathon battery life and an over-ear fit for travel, commuting and long desk days, choose Picun B8. These two look like rivals on a search results page, but they solve completely different problems — one is built to stay off your ear canal while you move, the other is built to disappear onto your head for weeks at a time.
• BANIGIPA Open Ear True — biggest strength: open-ear hooks that stay put, a light 10 g-per-bud design, IP54 sweat and splash protection, and a charging case with a dual-digit LED readout.
• BANIGIPA Open Ear True — biggest trade-off: it's a true wireless earbud, so you're managing a case and two small buds, and the open-ear shape means you won't get the sealed-in isolation of a closed design.
• Picun B8 — biggest strength: an over-ear build with a stated 120 hours of playtime per charge and three EQ modes, plus both Bluetooth and a 3.5 mm wired option.
• Picun B8 — biggest trade-off: it's a full-size headphone at roughly 0.34 kg, so it's bulkier to carry and warmer to wear than a pair of open-ear buds.
• Who each pick is for: BANIGIPA if movement and sweat are your priority; Picun B8 if battery life, a fuller over-ear soundstage and long listening sessions matter more.
The BANIGIPA Open Ear True is, at its core, a sports-first design. The buds hook over your ear rather than plugging into it, and the hooks are silicone, so the pitch here is simple: nothing shifts, nothing falls out, and nothing blocks your ear canal. Each bud weighs about 10 g. If you've ever had a standard earbud pop loose halfway through a run, that number and that shape are the whole argument.
The spec sheet backs the fitness angle up. IP54 means it shrugs off sweat and splashes — enough for running, cycling, hiking, yoga and gym work. Bluetooth 5.3 gives you a stated 10-metre range and fast reconnection: take the buds out of the case and they link back to the last paired device automatically; drop them back in and they power down and start charging. The touch controls cover play/pause, track skipping, volume, calls and voice assistant without reaching for your phone — with one honest caveat: volume adjustment isn't supported during calls.
Battery is where the numbers get interesting. Each bud is rated for up to 10 hours of continuous use, and the 800 mAh case provides four full recharges of both buds. Do the math and you're looking at a lot of total listening between wall charges, with a dual-digit LED display on the case showing the charge level from 1% to 100% so you're never guessing. The 16.2 mm dynamic driver is on the large side for this category, and BANIGIPA pairs it with a DSP noise-cancelling mic that it says filters out 95% of background noise — useful if you take calls while walking or working out.
Who should buy it: runners, cyclists, gym-goers, and anyone who wants to hear traffic, a training partner or a colleague while music plays. Who should skip it: if you want deep noise isolation on a plane, or you dislike managing two small buds and a case, this isn't the shape for you. A 90-day return window, a 12-month warranty and lifetime support round out the package.
The Picun B8 plays an entirely different game: endurance and comfort over the long haul. The headline is the battery — a built-in 1000 mAh cell rated at more than 120 hours of playtime per charge. Picun frames it as about 30 days of use at four hours a day, and for a commuter, student or frequent traveller, that's the kind of number that removes charging anxiety from your life entirely. You charge it, then you forget about it.
Sound is handled by dual 40 mm dynamic drivers with a 20 Hz–20 kHz frequency range and three EQ modes — Pop, Bass boost and Rock — cycled by pressing the EQ button twice. That's a genuinely useful feature for a headphone at this level, because it lets you shift the tuning to match what you're listening to instead of living with one fixed sound signature. A low-latency mode (power button pressed three times) is there for video and gaming, where audio lag is most noticeable.
The over-ear design uses PU leather and elastic sponge with an adjustable headband and 60° rotating ear cups, which is what makes it wearable for hours — and what makes it foldable for a bag. It's a heavier object than a pair of buds at around 0.34 kg, but that weight is spread across your head rather than hanging off your ears. Connectivity covers Bluetooth 5.4 with a stated 33-foot range, multipoint connection so it can hold two devices at once, and a 3.5 mm jack plus included audio cable for wired listening when you want zero latency or a dead battery isn't an option. There's also a built-in mic for hands-free calls and touch controls for answering and rejecting.
Who should buy it: travellers, remote workers, students, movie and game players, and anyone who wants one headphone that works wired or wireless. Who should skip it: if you need something that vanishes into a pocket, or you're doing sweaty outdoor training where an over-ear seal becomes uncomfortable, the B8 is the wrong tool.
• Best for running, cycling and sweaty workouts → BANIGIPA Open Ear True (IP54, silicone ear hooks, 10 g per bud).
• Best for battery life → Picun B8 (120 hours per charge versus roughly 10 hours per bud plus four case recharges on the BANIGIPA).
• Best for staying aware of your surroundings → BANIGIPA Open Ear True (open-ear design leaves your ear canal unobstructed).
• Best for flights, trains and long desk sessions → Picun B8 (over-ear PU leather and sponge cushions, adjustable headband, foldable).
• Best for wired backup → Picun B8 (3.5 mm jack and audio cable included; the BANIGIPA is wireless only with no jack).
• Best for sound tuning options → Picun B8 (three EQ modes and dual 40 mm drivers).
• Best for a pocketable kit → BANIGIPA Open Ear True (buds plus a compact case, versus a full-size folding headphone).
• Best for multipoint across two devices → Picun B8 (multipoint connection; the BANIGIPA reconnects to one previously paired device automatically).
In my opinion, the Picun B8 is the more versatile purchase for most people, because 120 hours of playtime, three EQ modes, multipoint and a wired option cover travel, work, movies and gaming in one object — and you rarely have to think about charging it. That said, if your listening happens while you're moving and sweating, I'd take the BANIGIPA Open Ear True without hesitation: the open-ear hook design, IP54 rating and 10 g buds are purpose-built for exactly that, and no over-ear headphone replaces them for it. Buy the B8 for the desk and the journey; buy the BANIGIPA for the road, the trail and the gym. Check the current price on Amazon before you decide, since that's the one variable I can't weigh for you.
FAQ
Picun rates it at more than 120 hours of playback per full charge from a 1000 mAh battery, which works out to roughly 30 days at four hours of listening a day.
Yes. It includes a 3.5 mm audio cable and a 3.5 mm jack, so you can listen wired when you want to — something the BANIGIPA Open Ear True doesn't offer, as it's Bluetooth-only.
Both handle calls, but differently. The BANIGIPA uses a DSP noise-cancelling mic and touch controls (note that call volume can't be adjusted on the buds). The Picun B8 has a built-in mic with touch controls for answering and rejecting, and multipoint lets it stay connected to two devices.
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