If you want one pair of open-ear headphones that carries your music offline, survives swim training and still handles a phone call afterwards, choose mojawa Run Plus Bone; if you need the lightest possible bone conduction set — something you can forget you're wearing for hours — choose MARLALL Swimming Headphones-Bone Conduction.
mojawa Run Plus Bone vs MARLALL Swimming Headphones-Bone Conduction at a Glance
• mojawa Run Plus Bone, biggest strength: two ways to listen — Bluetooth 5.2 or a 32 GB MP3 mode holding roughly 8,000 tracks — with a stated 8 hours of playtime and a real microphone with ENC noise reduction for calls.
• mojawa Run Plus Bone, biggest trade-off: it's the more hardware-heavy package (listed at 0.31 kg including case and cable), and wet hands can trip the controls. Dry hands are required for reliable operation.
• MARLALL Swimming Headphones-Bone Conduction, biggest strength: 22.68 g of liquid silicone over a nano-coated IP68 shell, Bluetooth 5.4, and a magnetic charging cable that doubles as a data link for loading playlists.
• MARLALL Swimming Headphones-Bone Conduction, biggest trade-off: the spec sheet states no battery life and no call-noise figure, and it carries a one-year warranty against mojawa's two.
• Who each is for: mojawa suits the person who wants one set for running, gym, desk calls and laps; MARLALL suits the swimmer or all-day wearer who prizes low weight above everything.
The Run Plus is built around the idea that you shouldn't need two pairs of headphones. On paper, the 32 GB onboard player is the headline: load your library once and you can swim, run or lift without a phone in range at all. Add Bluetooth 5.2 with a 10-metre range and you get the normal wireless mode back the moment you're dry. The driver is a bone conduction unit rated 20 Hz to 20,000 Hz at 8 ohms, with a patent-pending bass reinforcement arrangement and a dual suspension anchor system holding it in place — the pitch being fuller low end than open-ear designs typically manage.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-20 · 7 min read · Independent comparison
Where I'd skip it: if you want the absolute lightest thing on your head, this isn't it. If you swim in salt water and won't rinse afterwards — the maker specifically says to wash with fresh water after saltwater exposure — you're asking for trouble. And if you hate fiddly controls mid-workout, the dry-hands requirement will annoy you. Before swimming you're meant to disconnect Bluetooth, switch to MP3 mode and disable the touch controls, which is a routine, not a one-tap switch.
MARLALL's S800 takes the opposite approach: thin the feature list, drop the weight. At 22.68 g it's the one you're most likely to forget you have on, and the liquid silicone build is described as skin-friendly with a sealed, nano-coated shell rated IP68 against water, sweat, rain and dust. The wording around fit is aimed squarely at swimmers wearing caps and goggles, and the promise is a secure hold through laps, dives and hard training sessions with no pressure points. If you've been hunting for the best lightweight sleep headphones for side-sleeping or long bedside listening, this is the one of the two people usually gravitate toward on weight alone — though neither is sold as a sleep product, so treat open-ear comfort as the draw, not a sleep guarantee.
Connectivity is the newer standard here: Bluetooth 5.4 with a 10-metre range, which should mean steadier pairing in crowded gyms and poolsides. The magnetic charging cable does double duty as a data connection, so you can plug into a computer and rewrite the 32 GB of internal storage without pulling the card or using an app. That's a genuinely useful touch for anyone who keeps a rotating set of swim playlists.
Two honest caveats. First, the sheet doesn't state a battery life at all — you're buying on faith there, and that's a real gap if runtime is the thing that annoys you most. Second, the underwater rule is absolute: Bluetooth doesn't travel through water, so swimming means MP3 mode only, and MARLALL says so twice. You also need to dry the microphone after a swim or calls go muffled. And you'll want to check the ear-placement field, which reads "In Ear" while the product is described as open-ear bone conduction — bone conduction sets sit outside the canal, so I read that as a labelling quirk rather than a different design. Warranty is one year.
• Best for battery certainty → mojawa Run Plus Bone. 8 hours at 75% volume, a 50-minute full charge, and an 80-minute top-up from five minutes on the cable.
• Best for all-day or long-session comfort → MARLALL. 22.68 g versus a much heavier mojawa package.
• Best for calls → mojawa Run Plus Bone. Dual silicone microphone plus ENC background-noise reduction; MARLALL's only microphone guidance is to dry it after swimming.
• Best for loading music without a phone → a tie. Both hold 32 GB; mojawa frames that as roughly 8,000 songs, MARLALL lets you manage the storage over the magnetic cable.
• Best for newer wireless → MARLALL. Bluetooth 5.4 against Bluetooth 5.2.
• Best for glasses and helmet wearers → mojawa Run Plus Bone. The housing is explicitly shaped to fit under helmets and alongside glasses.
• Best for long-term ownership → mojawa Run Plus Bone. Two-year warranty versus one year, and a stated runtime you can plan around.
• Best on a tight budget → check the current price on Amazon. I won't guess at numbers; if your shortlist is budget headband headphones at entry-level money, compare the live figures for both before deciding.
In my opinion, the mojawa Run Plus Bone is the safer buy for most people. It's the only one of the two that tells you what its battery does, it has the better call hardware, and the two-year warranty and fast-charge behaviour are the kind of details that matter in month eight rather than week one. MARLALL's weight advantage is real and I'd happily point a dedicated pool swimmer at it — 22.68 g and Bluetooth 5.4 are meaningful — but the missing runtime figure is a blank I don't like signing off on for a do-everything purchase. And to close the loop on the question I opened with: if you're shopping for kids with microphone use, both are listed as adult-fit products, so I'd treat either as a grown-up purchase first and let a child use it only under supervision.
FAQ
mojawa, on paper. It has a dual silicone microphone with ENC noise reduction built for calls, while MARLALL only reminds you to dry its microphone after swimming to avoid muffled audio.
I don't quote prices — use the "Check latest price on Amazon" button on this page for both. On specs alone, mojawa gives you a stated runtime and a two-year warranty; MARLALL gives you lower weight and newer Bluetooth for a one-year term.
mojawa is explicitly designed to sit with helmets and glasses. Neither has a headphone jack, so PC use means Bluetooth only on both — fine for calls, less so for anything latency-sensitive.
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