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If you want a single device that actually plays audio — open-ear headphones built for side sleepers, all-day wear and workouts — choose NANAMI Open Ear Headphones; if you need a protective, carry-friendly silicone cover for a pair of ROSESELSA OWS earbuds you already own, choose BOVUGAC Case.
These two aren't really rivals in the usual sense. One is a listening device. The other is an accessory for a different brand's earbuds. But shoppers searching these two names together are usually trying to figure out which purchase solves their actual problem — and the answer comes down to whether you need sound or protection.
• NANAMI Open Ear Headphones — biggest strength: An open-ear hook design with a 14.2 mm dynamic driver, Bluetooth 5.3 and up to 15 hours of playtime, built specifically so nothing presses into your ear canal.
• NANAMI Open Ear Headphones — biggest trade-off: By design there's no noise isolation at all ("noise control: None"), so it will not block out background sound — that's the point, but it's not for anyone chasing silence.
• BOVUGAC Case — biggest strength: A skin-friendly silicone shell that wraps a ROSESELSA OWS earbud case against scratches, drops and bumps, and comes with a carabiner keychain, lanyard and cleaning pen.
• BOVUGAC Case — biggest trade-off: It is not a headphone. It's a cover for one specific model (ROSESELSA OWS) and won't fit other earbuds, and the earbuds themselves are not included.
• Who each pick is for: NANAMI for side sleepers, runners, commuters and anyone who wants audio without ear pressure. BOVUGAC for someone who already owns ROSESELSA OWS earbuds and wants to protect and carry them.
NANAMI's whole pitch is comfort through absence of pressure. Instead of pushing a tip into your ear canal, the U1 sits outside the ear on ergonomic hooks that wrap gently around it. If you've ever woken up with a sore ear from sleeping in standard earbuds, that's exactly the problem this design targets — the headphones rest against the outer ear rather than inside it, so lying on your side doesn't drive plastic into your head.
The specs back up the everyday-usable angle. Bluetooth 5.3 with a 10-meter range, button controls, a 20 Hz–20,000 Hz frequency range and a 16-ohm impedance dynamic driver mean it's tuned as a straightforward, easy-to-drive listening device rather than a specialist audiophile product. Battery is listed at up to 15 hours with a 2-hour charge over Type-C, and IPX5 means sweat and light rain are fine. For running, gym sessions, commutes or a full workday, that's a sensible combination — you charge it, wear it, and forget it.
Who should buy it: side sleepers who want podcasts or white noise overnight, runners and cyclists who need to hear traffic, people with small or sensitive ears who find normal earbuds uncomfortable, and anyone who wears headphones for hours and wants to stay aware of their surroundings.
Who should skip it: if your priority is blocking out noise — a loud open-plan office, a noisy flight, a busy street you'd rather tune out — an open-ear design is the wrong tool. There's no active noise cancellation here, and there isn't meant to be. If deep bass isolation is what you're after, look elsewhere.
The BOVUGAC Case is exactly what its name says: a soft silicone cover made for the ROSESELSA OWS earbuds. It's a slim-fit shell that hugs the charging case, and the material choice — skin-friendly silicone — means it feels smooth in the hand while absorbing the kind of light knocks, scratches and bumps that accumulate when a case lives in a bag or pocket.
What you actually get matters here. The package includes the case cover, a carabiner keychain, a lanyard and a cleaning pen. That combination turns a loose earbud case into something you can clip to a backpack strap or handbag, which is genuinely useful if you're the type who misplaces small accessories. The cleaning pen is a small but practical extra for keeping earbud mesh free of wax and dust.
The critical limitation: this is a single-model accessory. It's designed for ROSESELSA OWS earbuds and is not compatible with other devices. And the earbuds are not included — you're buying protection and carry hardware, nothing more.
Who should buy it: someone who already owns ROSESELSA OWS earbuds, wants to keep the charging case free of scuffs, and likes the idea of clipping it to a bag with the included carabiner and lanyard.
Who should skip it: anyone who doesn't own ROSESELSA OWS earbuds. It won't fit a different case, and if you were hoping this purchase would get you listening to music, it won't — there's no audio hardware here at all.
• Best for actually listening to audio → NANAMI Open Ear Headphones. It's a complete Bluetooth 5.3 headphone; the BOVUGAC Case has no audio components.
• Best for side sleepers and ear-pressure relief → NANAMI Open Ear Headphones. The open-ear, no-pressure hook design is built for exactly this.
• Best for workouts and sweaty sessions → NANAMI Open Ear Headphones. IPX5 sweat resistance plus secure ear hooks that are meant to stay put.
• Best for staying aware of traffic and surroundings → NANAMI Open Ear Headphones. Open-ear listening with no noise isolation keeps you connected to your environment.
• Best for protecting a ROSESELSA OWS charging case → BOVUGAC Case. Soft silicone, slim fit, drop and scratch protection.
• Best for carrying your earbuds hands-free → BOVUGAC Case. The carabiner keychain and lanyard let you clip it to a bag or backpack.
• Best for long single-charge sessions → NANAMI Open Ear Headphones. Up to 15 hours of playtime with a 2-hour Type-C charge.
• Best for a small, tidy add-on gift → BOVUGAC Case. A cleaning pen, lanyard and keychain make it a neat little kit — provided the person owns ROSESELSA OWS earbuds.
In my opinion, most people typing these two names into a search bar want audio, not a case — so I'd buy the NANAMI Open Ear Headphones. The open-ear hook design, Bluetooth 5.3, 15-hour battery and IPX5 rating cover sleeping, running, commuting and work in one device, and the no-pressure fit is the feature you'll notice every day.
The BOVUGAC Case is a good product for a narrow job: guarding ROSESELSA OWS earbuds. If you already own those earbuds and want to keep the case clean and clipped to your bag, it does that well. But it can't substitute for a headphone, and it won't fit anything else. Buy it as an add-on, not as the main event.
FAQ
They do different jobs, so "better" only makes sense against your need. NANAMI is a working Bluetooth headphone with a 15-hour battery and IPX5 rating; BOVUGAC is a silicone cover for ROSESELSA OWS earbuds. If you want to listen to something, only one of them can do it.
No. The spec sheet lists noise control as "None," and the open-ear design is deliberately built to let outside sound in. That's a safety feature for running and commuting, but it means they won't mute a noisy room.
Only if your earbuds are ROSESELSA OWS. The case is made specifically for that model and isn't compatible with other devices. It also doesn't include the earbuds themselves — you get the cover, keychain, lanyard and cleaning pen.
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