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 the higher waterproof rating and the option to go deeper in the water, choose Opinta Swimming Headphones; if you need a bone-conduction swim set built around a swim cap and goggles with a longer immersion window closer to the surface, choose SAMVEK Swimming Headphones Underwater.
• Opinta's biggest strength: IPX8 waterproofing rated to a 3m depth, plus a 200mAh battery good for up to 8 hours of playback on a 2-hour charge.
• Opinta's biggest trade-off: It's the orange X7 Pro with a magnetic charging port that has to be bone-dry before you plug in — a habit you have to build.
• SAMVEK's biggest strength: A genuine IP68 rating with a stated two-hour full-immersion window down to 2 metres, and 32GB of on-board storage for roughly 6,000–8,000 tracks.
• SAMVEK's biggest trade-off: No noise control at all, and it's tuned as a swim-first build (ABS/PC shell, swim cap and goggles friendly) rather than a do-everything commuter set.
• Choose Opinta if you want one open-ear headphone that swims, cycles and runs — and you'd rather have the deeper depth rating.
• Choose SAMVEK if you swim laps with a cap and goggles and want the most storage-forward, swim-specific bone-conduction option.
The Opinta Swimming Headphones are built around a simple idea: one open-ear headset that keeps working when you get wet. The headline spec is IPX8 waterproofing, and Opinta rates it for use underwater to 3m depth without impact — including being submerged or under high water pressure. The brand is upfront about the one thing every bone-conduction swim headphone shares: Bluetooth signals don't travel underwater, so you switch to the built-in MP3 mode before you get in. The 32GB of on-board memory is what makes that possible.
Day to day, the Opinta set leans multi-sport. The shell is soft silicone and the whole thing weighs 30g, which matters more than it sounds — an open-ear band that sits lightly is one you'll actually leave on for a full session. Because it doesn't block your ear canals, you stay aware of traffic, other swimmers and whatever's happening around you. Opinta also points out it won't fight with hats or glasses, which is the real-world reason I'd point a cyclist or winter runner this way. The controls are multi-functional buttons that handle mode switching, play/pause, track skipping and calls, and the 200mAh battery gives you up to 8 hours of playback or talk time on a 2-hour charge.
Who should buy it: swimmers who also run, ride and hike, and want a single headset for all of it, plus anyone who values the deeper 3m depth rating. The orange colourway is a nice practical touch for open water — easier to spot if it ever comes off.
SAMVEK Swimming Headphones Underwater: Who It's For
The SAMVEK Swimming Headphones Underwater are the more swim-specific of the two. The IP68 rating is paired with a stated immersion window of up to two hours at up to 2 metres deep — a concrete, honest number rather than a vague "waterproof." SAMVEK explicitly designs this set to be worn with a swimming cap, goggles and earplugs, which tells you exactly who it's for: lap swimmers who already have a kit and want audio to slot into it.
The rest of the spec sheet reads like a swim-first tool. 32GB of storage holds up to roughly 8,000 songs (SAMVEK also quotes 6,000 in its description, so treat that as a ballpark), and it accepts MP3, WMA, WAV, APE and FLAC files — good news if you keep a lossless library. Bluetooth 5.4 handles the dry-land half with a 10-metre (33ft) range, multi-device pairing, lower latency and hands-free calling. On land, that same open-ear, 30g design keeps your ear canals clear so you can hear what's around you while running or cycling.
Two things to know before you buy. First, same as any bone-conduction swim headphone, Bluetooth is off the table underwater — you switch to MP3 mode. Second, there is no noise control whatsoever. That's not a flaw for swimming (you want to hear your surroundings), but if you were hoping for active noise cancellation on the commute, this isn't the set. The shell is ABS, plastic and polycarbonate in black, with button controls and a retractable headband in the box.
Who should buy it: dedicated lap and open-water swimmers who wear a cap and goggles, want maximum on-board storage, and care about file-format flexibility. The black finish and adjustable headband suit a no-fuss pool routine.
Who should skip it: if you want one headset that's equally at home on a long ride or a trail run and you'd rather have the deeper 3m depth rating, the Opinta's multi-sport design is the better fit. And if you want any form of noise control, neither of these is for you — but SAMVEK is the one that says so outright.
• Best for deeper water → Opinta Swimming Headphones. IPX8 rated to 3m versus SAMVEK's 2m immersion window.
• Best for pure lap swimming → SAMVEK Swimming Headphones Underwater. It's designed to be worn with a swim cap, goggles and earplugs.
• Best for battery life → Opinta Swimming Headphones. 200mAh, up to 8 hours playback or talk time on a 2-hour charge. SAMVEK quotes a 2-hour charge too but doesn't state a playback figure.
• Best for storage and file formats → SAMVEK Swimming Headphones Underwater. 32GB with MP3, WMA, WAV, APE and FLAC support.
• Best for multi-sport use → Opinta Swimming Headphones. Swimming, cycling, marathon running, hiking and driving are all in its brief.
• Best for low-key looks → SAMVEK Swimming Headphones Underwater. Black shell; the Opinta is orange.
• Best for hands-free calling on land → either, but SAMVEK edges it with multi-device pairing and lower latency on Bluetooth 5.4.
• Best for awareness of surroundings → a tie. Both are open-ear, 30g, bone-conduction designs that leave your ear canals clear.
In my opinion, most people should buy the Opinta Swimming Headphones. The IPX8 rating to 3m covers more real-world swimming than the 2m window, the stated 8-hour battery is the more useful endurance figure, and the multi-sport design means you're not buying a second headset for cycling or running. I'd pick SAMVEK only if you're a committed lap swimmer who always wears a cap and goggles, wants every gigabyte of storage, and prefers a discreet black set. Either way, check the current price on Amazon before you commit — and remember to dry that magnetic charging port on the Opinta.
Both are bone-conduction sets with a built-in MP3 mode, since Bluetooth doesn't work underwater. Opinta carries an IPX8 rating to 3m depth; SAMVEK carries IP68 with a stated two-hour immersion window at up to 2m. In my opinion Opinta has the edge for depth, SAMVEK for swim-cap-and-goggles lap routines.
No. Neither one transmits Bluetooth through water — both brands state you must switch to MP3 mode for water activities. Bluetooth 5.4 handles everything above the surface: Opinta for calls and music, SAMVEK with a 10m range and multi-device pairing.
Both have 32GB of built-in storage. SAMVEK quotes up to about 8,000 songs (and 6,000 elsewhere in its listing), so treat it as a large library either way. SAMVEK also supports MP3, WMA, WAV, APE and FLAC files; Opinta doesn't specify formats.
Both weigh 30g with an open-ear, bone-conduction design that keeps your ear canals free — so neither presses on your ears the way in-ear buds do. Opinta uses soft silicone and notes it won't clash with hats or glasses; SAMVEK uses an ABS/PC shell with a retractable headband and adjustment straps.
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