If you want a modern, lightweight device with long battery life and advanced connectivity for daily use, choose MARLALL Swimming Headphones-Bone Conduction; if you need a rugged, no-frills MP3 player with drag-and-drop simplicity specifically for deep diving or serious lap swimming, choose Pmjebe Bone Conduction Swimming.
• MARLALL offers the latest Bluetooth 5.4 stability, ultra-lightweight construction (22.68 g), and a massive 32 GB storage capacity, but its underwater utility is strictly limited to pre-loaded tracks rather than live streaming.
• Pmjebe provides a robust, ergonomic design with tactile controls and support for lossless audio formats like FLAC, yet it feels heavier (50 g) and holds less total music space at 8 GB compared to its competitor.
• The MARLALL pick is ideal for those who want one device that bridges the gap between high-tech daily listening and poolside safety without bulk.
• The Pmjebe pick is tailored for swimmers who prioritize physical button control, specific audio format compatibility, and a traditional "clip-on" feel that stays put during intense strokes.
The MARLALL unit stands out primarily because of its commitment to weight reduction and modern connectivity standards. At just 22.68 grams, this device is engineered to be virtually unnoticeable on your head. The manufacturer utilized premium liquid silicone material to create a seal that is skin-friendly and resistant to pool chemicals or saltwater damage. This isn't just about comfort; it is about endurance. If you plan to wear these headphones while wearing a swim cap and goggles simultaneously, the low profile and lack of pressure points make a significant difference over a 45-minute workout or a full marathon session. You won't find the same "heavy" sensation on your temples that often plagues older bone conduction models.
From a feature perspective, the inclusion of Bluetooth 5.4 is a major differentiator for anyone looking for a versatile piece of gear. Whether you are walking to the pool, drying off by the side, or using them as true wireless earbuds for streaming audiobooks while driving, the connection stability is rated up to 10 meters. This means you can leave your phone in your locker bag across the room without worrying about dropouts. The magnetic charging cable also adds a layer of convenience, allowing you to easily plug into a computer to update playlists without fumbling with tiny ports.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-27 · 7 min read · Independent comparison
However, this device has a specific boundary regarding its underwater capabilities. It operates in an MP3-only mode when submerged. The user must load their own music files onto the internal 32 GB memory beforehand. If you are someone who relies entirely on cloud streaming services like Spotify or Apple Music while in the water, this product will not work for you without a complex workaround. Furthermore, the microphone requires careful attention post-swim; the design note emphasizes drying the mic to prevent call issues. If you plan to take calls immediately after a shower or swim without letting it dry first, you might experience audio quality degradation. This model is best for the tech-savvy swimmer who wants a sleek, modern interface and doesn't mind managing their own digital library.
The Pmjebe S3 model takes a more traditional approach to waterproof audio hardware, focusing on durability and tactile interaction. Weighing in at 50 grams, it is significantly heavier than the MARLALL alternative, which some users might perceive as a trade-off for a sturdier build. The design features a back-mounted head-mounted type that hangs close to the pinna, ensuring it stays secure even during vigorous butterfly strokes or flips. This ergonomic shape is particularly beneficial for people with larger heads or those who find "in-ear" styles uncomfortable. The open-back design allows for situational awareness, meaning you can hear the lane lines or a coach shouting instructions while still enjoying your soundtrack through the cheekbone vibration.
What truly sets the Pmjebe apart for the serious swimmer is its file handling and playback options. It supports a wide range of formats including FLAC, WAV, WMA, and MP3, giving audiophiles the ability to transfer high-resolution lossless music directly from a PC or Mac. The interface relies on three large, tactile buttons located on the device itself. In a pool environment where wet fingers can struggle with touchscreens or small sliders, having distinct physical buttons to skip tracks or engage shuffle mode is a functional advantage. The 8 GB of storage, while smaller than the MARLALL's offering, is still substantial enough to hold thousands of songs if you manage your playlist efficiently.
There are limitations to consider with this unit. The IPX68 rating indicates excellent waterproofing, but the Bluetooth functionality is similarly restricted underwater. Like its competitor, it requires switching to MP3 mode once submerged. However, the lack of Bluetooth 5.4 suggests slightly older transmission technology, which might mean less range or stability when used outside the water compared to the MARLALL. Additionally, the absence of a display screen means you rely entirely on button presses to navigate your library. If you prefer visual feedback on what song is playing or how much battery remains, this device does not provide that. It is a tool built for function over flash, making it perfect for athletes who want to dive in, press play, and forget about the interface until they surface.
• Best for Battery Life and Connectivity → MARLALL Swimming Headphones-Bone Conduction: With Bluetooth 5.4 and a focus on seamless wireless performance above water, it offers a superior user experience for general sports and travel.
• Best for Audio Format Flexibility → Pmjebe Bone Conduction Swimming: Its support for FLAC and WAV makes it the only choice for listeners who refuse to compromise on sound quality and want to transfer lossless files via drag-and-drop.
• Best for Comfort and Weight Sensation → MARLALL Swimming Headphones-Bone Conduction: At under 23 grams, it is nearly half the weight of the Pmjebe, reducing fatigue during long sessions.
• Best for Tactile Control Underwater → Pmjebe Bone Conduction Swimming: The three large physical buttons offer reliable operation when your hands are wet, unlike potential touch-sensitive interfaces on other models.
• Best for Storage Capacity → MARLALL Swimming Headphones-Bone Conduction: 32 GB allows you to carry an entire music collection, whereas the 8 GB on the Pmjebe requires more curation.
• Best for Durability and Build Feel → Pmjebe Bone Conduction Swimming: The heavier, more substantial chassis feels like a dedicated piece of sports equipment designed to withstand rough handling.
• Best for Airplane Travel → MARLALL Swimming Headphones-Bone Conduction: The combination of Bluetooth 5.4 and lightweight design makes it a more versatile companion for flights, though both serve well as closed-loop entertainment.
• Best Value for Audiophiles → Pmjebe Bone Conduction Swimming: If your priority is listening to high-fidelity music files rather than convenience, the Pmjebe's codec support is unmatched in this comparison.
After analyzing the specifications, design philosophies, and intended use cases of both devices, I would personally buy the MARLALL Swimming Headphones-Bone Conduction. The primary reason is the sheer advantage of the 32 GB storage combined with the Bluetooth 5.4 connectivity. For a traveler or a frequent flyer, having a device that doubles as a high-capacity MP3 player for the pool and a reliable wireless headset for the plane is a level of versatility the Pmjebe simply cannot match. The 22.68 gram weight also makes it a non-factor on your head, which is critical for comfort during long hauls or extended workouts. While the Pmjebe is a solid, rugged contender with excellent button controls, the MARLALL feels like a more modern, all-encompassing solution for the active lifestyle.
Yes, both models function as wireless or wired MP3 players, but the MARLALL is better suited due to its Bluetooth 5.4 range and lighter weight, making it easier to pack and wear during flights.
No, neither product supports Bluetooth streaming underwater. Both require you to switch to MP3 mode using their internal storage, as water blocks Bluetooth signals.
Specific color availability may vary by retailer.
The Pmjebe lists an average battery life of 8 hours, which covers multiple swim sessions. The MARLALL does not list a specific hour count but features magnetic charging for quick top-ups.
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