If you want swimming-focused headphones with 32 GB of built-in MP3 storage for big ears, choose MARLALL Swimming Headphones-Bone Conduction; if you need stated battery life and a straightforward open-ear option for workouts, choose SCPTEA Bone Conduction Headphones.
For swimming, MARLALL’s key advantage is its IP68 rating and storage; SCPTEA lists IPX8 waterproofing and up to 10 hours of playback.
Neither pair is designed to seal off your ears, and neither has noise control.
• MARLALL’s biggest strength: IP68 waterproofing and 32 GB of built-in MP3 storage make it the more swimming-focused choice. Trade-off: Bluetooth does not work underwater, so you must switch to MP3 mode in the pool.
• SCPTEA’s biggest strength: It specifies up to 10 hours of playback and has an open-ear design for workouts and everyday listening. Trade-off: Its listed waterproof rating is IPX8, and the product details do not state how much music its MP3 storage can hold.
• MARLALL is for: Swimmers who want music stored on the headphones and are comfortable managing playlists in MP3 mode.
• SCPTEA is for: People who want stated battery life and a pair for running, cycling, gym sessions, and swimming.
• For big ears: Both leave the ears open rather than using conventional earcups, but neither sheet gives earcup dimensions or a fit range for larger ears.
MARLALL’s clearest use case is swimming with music. It combines an open-ear bone-conduction design with IP68 waterproofing and 32 GB of built-in storage. That means you can load audio onto the headphones and listen in MP3 mode in the water. The important catch is straightforward: Bluetooth signals do not transmit underwater, so a phone connection is not the way to play music while swimming.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-22 · 6 min read · Independent comparison
I would consider MARLALL if swimming is a regular part of your routine and 32 GB of local music storage matters to you. I would skip it if you expect to stream from a phone while underwater, or if a specific battery runtime is essential: the information provided does not state a playtime figure. The product does not list noise control, so it is not a choice for blocking out a noisy gym or pool.
SCPTEA also pairs an open-ear bone-conduction design with waterproofing for swimming and sports. Its Bluetooth 5.4 connection is specified to work up to 10 meters, and the headphones include 32 GB of MP3 storage according to the product title. As with MARLALL, that built-in music option is the relevant route for swimming; Bluetooth should not be treated as an underwater connection.
The detail that stands out for everyday planning is its stated battery life: up to 10 hours of continuous playback. SCPTEA also lists a 28-gram frame, magnetic charging, and 16 mm drivers. The open-ear layout is intended to leave the ears uncovered, which can help keep nearby sounds accessible during outdoor exercise. The product information describes use for running, cycling, workouts, and daily listening as well as swimming.
I would look at SCPTEA if you want a stated playback figure alongside a general-purpose sports design. Its IPX8 rating is listed for swimming and exercise, while MARLALL specifies IP68. Those labels are not enough on their own to establish how either pair will suit every swim routine, so consider the intended use and follow the product’s guidance. Skip SCPTEA if you need noise cancellation: its listed noise control is none.
Side-by-Side: Which Should You Choose?
• Best fit for swimming with stored music → MARLALL Swimming Headphones-Bone Conduction. Its 32 GB storage and IP68 rating make its swimming focus explicit. Use MP3 mode in the water.
• Best for a stated playback duration → SCPTEA Bone Conduction Headphones. SCPTEA specifies up to 10 hours. MARLALL’s provided details do not give a battery runtime.
• Best for Bluetooth listening outside the water → Either one. Both list Bluetooth 5.4 and a range of up to 10 meters. Neither should be chosen on the assumption that Bluetooth will work underwater.
• Best for a more clearly specified driver size → SCPTEA Bone Conduction Headphones. It lists 16 mm drivers; MARLALL’s information does not give a driver size.
• Best when the listed waterproof label is the deciding detail → MARLALL, on the stated specifications. MARLALL lists IP68, while SCPTEA lists IPX8. That distinction does not replace checking the manufacturer’s swimming guidance.
• Best for noise blocking → Neither. Both list no noise control, and an open-ear design is not intended to isolate you from surrounding sound.
• Best for a call-focused purchase → Neither has a clear specification advantage. MARLALL notes that its microphone should be dried after a swim; SCPTEA mentions hands-free calls. Neither sheet provides call-quality measurements.
In my opinion, I would choose MARLALL if swimming is the main reason I’m buying and I want 32 GB of onboard MP3 storage with an IP68 rating. I would choose SCPTEA instead if its stated up-to-10-hour playback figure matters more than MARLALL’s swimming-focused specification.
FAQ
The product information says Bluetooth signals cannot transmit underwater, so swimming requires MP3 mode. Both products list built-in storage for listening without a live Bluetooth stream.
SCPTEA specifies up to 10 hours of continuous playback. The supplied MARLALL details do not state a battery-life figure, so there is no supported runtime comparison beyond that.
MARLALL lists an IP68 rating and is presented as swimming-focused; SCPTEA lists IPX8 waterproofing for swimming and sports. For either pair, plan to use MP3 mode underwater and follow its usage guidance.
No. Both list no noise control, and their open-ear designs do not aim to block surrounding sound. That makes them a poor match if your priority is a quiet listening environment.
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