If you want open-ear listening with Bluetooth 5.3 and up to six hours of battery life, choose Piegricdiat Bone Conduction Headphones; if you need a swimming-focused pair with IP68 protection and up to 10 hours of playback, choose LOBKIN Bone Conduction Swimming. For kids bluetooth listening, I’d match the choice to where they’ll use the headphones: everyday listening and staying aware of nearby sounds favor Piegricdiat, while swimming with music stored on the headphones favors LOBKIN.
Piegricdiat Bone Conduction Headphones vs LOBKIN Bone Conduction Swimming at a Glance
• Piegricdiat’s strength: Bluetooth 5.3, open-ear listening, and 32GB of built-in MP3 storage. Trade-off: its stated battery life is six hours, and underwater use is limited to no more than six continuous hours.
• Choose Piegricdiat for Bluetooth listening and stored music across general workouts and daily activities; choose LOBKIN for swimming-focused use and longer stated playback time.
Piegricdiat is an open-ear bone conduction headset with Bluetooth 5.3 and a built-in 32GB MP3 player. The open-ear design leaves the ear canal uncovered, which may suit someone who wants to listen while remaining aware of nearby activity. It also avoids placing an earbud directly in the ear canal. The product information describes use for activities including running, cycling, hiking, and swimming.
The useful distinction is that it offers both wireless Bluetooth pairing and a standalone MP3 mode. You can load music onto its built-in memory using the supplied magnetic charging cable and a computer, then listen without carrying or connecting a phone. That makes the storage feature relevant not just for swimming, but also for workouts where a phone is inconvenient. Bluetooth 5.3 is the stated version; the sheet does not specify multipoint pairing, so I wouldn’t treat these as the best multipoint wireless headphones for someone who needs simultaneous connections to multiple devices.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-20 · 6 min read · Independent comparison
The main compromise is the stated six-hour average battery life. That may be enough for shorter workouts or a day split between listening sessions, but it offers less stated playback time than LOBKIN. Piegricdiat lists IPX8 waterproofing and says underwater use should not exceed six continuous hours. I’d consider it for someone who wants open-ear Bluetooth and MP3 flexibility, but skip it if longer stated battery life or LOBKIN’s IP68 rating is the deciding factor. The product information gives no charging-time figure, so it cannot be compared on how quickly it recharges.
LOBKIN is the more swimming-specific option on paper. It has an open-ear bone conduction design, 32GB of built-in storage, and an IP68 rating. Its stated guidance describes use for more than two hours at a depth of 10 feet, while also noting that underwater listening should use MP3 mode. That last point matters: Bluetooth is not the mode to rely on while swimming, so music needs to be stored on the headset.
For dry-land use, LOBKIN lists Bluetooth 5.4 and a noise-canceling microphone. It also claims up to 10 hours of playback and a two-hour magnetic charging time. Those figures make its battery details more attractive than Piegricdiat’s stated six-hour average, especially for someone planning longer listening sessions. The microphone may be useful for calls, but the product data does not provide enough detail to compare call performance directly with another headset.
LOBKIN’s listed design includes a flexible titanium alloy frame, a soft coating, and memory foam ear tips, with a stated weight of 29 grams. These details may appeal to someone who wants a secure-feeling sport fit, though the product is still described as open-ear bone conduction rather than a conventional sealed gaming headset. If you’re searching for a memory foam ear cushions gaming headset, note that the listed memory foam ear tips are a different feature; LOBKIN is presented as a sports and swimming headset, not a gaming headset. I’d skip it if Bluetooth listening underwater is essential, or if you want a product specifically described for children: its age-range information says adult.
• Best fit for Bluetooth version → Piegricdiat Bone Conduction Headphones for Bluetooth 5.3; LOBKIN for Bluetooth 5.4. The version numbers differ, but they don’t establish which headset will work better in every environment.
• Best for longer stated playback → LOBKIN Bone Conduction Swimming. Its listed playback time is up to 10 hours, compared with Piegricdiat’s six-hour average battery life.
• Best for swimming details → LOBKIN Bone Conduction Swimming. Its sheet specifies IP68 protection and gives underwater guidance of 2+ hours at 10 feet. Piegricdiat lists IPX8 and says not to use it underwater for more than six continuous hours.
• Best for underwater stored music → Tie. Both have 32GB of built-in memory and an MP3 mode, so both can play stored tracks without a phone connection. LOBKIN specifically says to switch to MP3 mode for swimming.
• Best for a swimming-focused battery and charging spec → LOBKIN Bone Conduction Swimming. It states up to 10 hours of playback and a two-hour magnetic charging session; Piegricdiat’s sheet does not give a charging-time figure.
• Best for open-ear Bluetooth listening across activities → Piegricdiat Bone Conduction Headphones. Its listed use cases span running, cycling, hiking, driving, and swimming, with Bluetooth 5.3 pairing.
• Best for a listed sport-fit construction → LOBKIN Bone Conduction Swimming. Its product information specifies a 29-gram weight, flexible titanium alloy frame, and soft coating. Piegricdiat’s sheet does not provide a weight or frame material.
• Best for phone-free listening away from the pool → Tie. Both include 32GB of MP3 storage, so either can hold music for use without a connected phone. The product data does not specify how many tracks either memory can store.
In my opinion, I’d buy LOBKIN if swimming is the main reason for getting bone conduction headphones: it has IP68 protection, a clear MP3-mode instruction for underwater listening, and longer stated playback.
For kids bluetooth listening outside the pool, I’d lean toward Piegricdiat only if its open-ear Bluetooth-and-MP3 combination fits the intended activities. LOBKIN’s age-range information says adult, so I would not assume it is designed for children. For a child, I’d check fit and intended use carefully before choosing either.
Both models have Bluetooth, but LOBKIN specifically says to switch to MP3 mode underwater because water blocks Bluetooth transmission. Both also include 32GB of built-in memory for stored music.
LOBKIN lists up to 10 hours of playback and a two-hour charging time. Piegricdiat lists an average battery life of six hours, with no charging-time figure provided.
Both product sheets mention a built-in noise-reduction or noise-canceling microphone. The available specifications do not establish which has clearer calls, so I wouldn’t choose between them based on microphone performance alone.
Neither product sheet identifies USB-C charging. Both describe magnetic charging cables, so the supplied information doesn’t support calling either one a USB-C option. Check the product details before buying if USB-C is a requirement.
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