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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want one pair of earbuds that stays locked on your ears through sweaty runs, rainy commutes and long gym sessions — with a charging case that keeps going for weeks — choose Back Bay Audio Runner; if you need headphones that can actually go underwater, store your music without a phone and leave your ears open to traffic, choose QMHL Swimming Headphones.
• Back Bay Audio Runner — biggest strength: a secure over-ear hook design built for running, plus an 80-hour total battery figure courtesy of the charging case. Its IPX-7 rating handles rain and sweat.
• Back Bay Audio Runner — biggest trade-off: it is explicitly not designed for swimming, and it has no built-in music storage — it needs a Bluetooth-connected phone within about 30 feet.
• QMHL Swimming Headphones — biggest strength: a true IP68 waterproof rating that allows full submersion up to 2 meters, plus 32GB of built-in memory so you can swim with no phone at all.
• QMHL Swimming Headphones — biggest trade-off: bone conduction sound is open by design, so it will never isolate you from pool noise or wind, and its single-charge runtime (up to 10 hours) is far shorter than the Runner's case-backed figure.
• Who each pick is for: the Back Bay Runner is for land athletes who want punchy, sealed-in sound; the QMHL X9 is for swimmers and open-ear listeners who value water safety over bass.
The Back Bay Audio Runner (model Runner 60) is a running-first design, and the spec sheet says so plainly. The ear-hook shape wraps over your ear rather than sitting loose inside it, which is the whole point of the "built for runners" positioning — the buds are meant to survive a hard run without popping out mid-stride. Back Bay says the shape was developed with feedback from the Boston running community, and the design brief reads like it.
Battery is where this one gets interesting. Each earbud plays for about 8 hours on its own, and the wireless charging case recharges them roughly nine more times for a total of around 80 hours. The case itself is a compact 3.4 x 2.3 x 1.5 inches and holds a 1200 mAh battery, so it slots into a gym bag without much fuss. There's also quick-charge: 15 minutes in the case reportedly buys you another 90 minutes of music — genuinely useful when you're walking out the door and realize you forgot to charge.
On sound, you get 10 mm dynamic drivers, a 20 Hz–20 kHz frequency range, and a bass boost mode you can toggle. Bluetooth 5 with a 30-foot range covers phone-in-pocket or phone-on-the-gym-floor listening, and the media controls are touch-based. The IPX-7 rating means rain, sweat and splashes are fine.
QMHL Swimming Headphones: Who It's For
The QMHL X9 approaches the problem from the opposite direction. Its headline feature is IP68 waterproofing that allows the headphones to be fully submerged up to 2 meters — swimming, surfing and other water sports are the intended use. That's a different class of water resistance than splash-proof, and it's the reason this product exists.
The second big feature is the 32GB of built-in MP3 memory, which QMHL says holds roughly 8,000 songs. That matters more than it sounds: pools and open water are exactly where you don't want a phone, and Bluetooth doesn't travel through water anyway. You load your music, leave the phone in the locker, and swim. When you are on land, Bluetooth 6.0 gives you a standard wireless connection with a claimed range up to 33 feet.
The design is bone conduction and open-ear. Nothing goes inside your ear canal, so ambient sound — traffic, pool whistles, other swimmers — comes through. For outdoor runners and cyclists, that's a safety feature. For anyone chasing deep bass or noise isolation, it's a compromise, and there's no noise control here at all. The titanium frame is built for all-day comfort, and the controls are push-button. The 8–120 age range is unusually broad, which hints at how simple the operation is.
Battery life is up to 10 hours of music or talk time, with a quick-charge claim of 2 hours of playback from 15 minutes of charging. That's solid for a swim session, but it's not a case-based system — you're recharging the headphones themselves.
Who should buy it: swimmers, surfers, open-water athletes, and runners or cyclists who want their ears open to their surroundings and their phone left at home. Who should skip it: anyone who mainly wants deep, sealed-in bass in a noisy gym, or who dislikes being aware of every ambient sound.
• Best for swimming → QMHL Swimming Headphones. IP68 and submersion to 2 meters versus the Runner's IPX-7, which Back Bay says is not for swimming. This one isn't close.
• Best for running and gym work → Back Bay Audio Runner. The over-ear hooks are purpose-built for high-motion workouts, and the sealed in-ear fit gives you far more bass.
• Best total battery life → Back Bay Audio Runner. Roughly 80 hours with the case versus up to 10 hours on a single QMHL charge.
• Best for leaving your phone behind → QMHL Swimming Headphones. 32GB of onboard memory holds thousands of songs; the Runner needs a Bluetooth source within about 30 feet.
• Best for outdoor safety → QMHL Swimming Headphones. Open-ear bone conduction keeps traffic and surroundings audible; the Runner isolates you with in-ear tips.
• Best for sound quality and bass → Back Bay Audio Runner. 10 mm dynamic drivers plus a dedicated bass boost mode, versus bone conduction drivers that trade low-end punch for awareness.
• Best for a compact charging setup → Back Bay Audio Runner. A single wireless charging case recharges the buds about nine times; the QMHL charges on its own cable.
• Best for mixed land-and-water use → QMHL Swimming Headphones. It covers both, though it gives up bass and battery to do it.
If I were buying for myself and my training was mostly running, lifting and commuting, I'd take the Back Bay Audio Runner. The fit is designed for exactly that, the bass boost suits energetic music, and an 80-hour case means I'd rarely think about charging. If I swam — or wanted one pair that could handle the pool and the road while keeping my ears open — I'd buy the QMHL Swimming Headphones instead, because IP68 submersion and 32GB of onboard music are things the Runner simply cannot do. In my opinion, the deciding question isn't which is "better" — it's whether you get wet on purpose.
No. The Runner carries an IPX-7 rating, which covers rain, sweat and splashes, but Back Bay states clearly that these are not swimming earbuds and the fit isn't designed for it. For pool or open-water swimming, the QMHL X9 with its IP68 rating is the right pick.
No, and that's their main advantage. The 32GB of built-in memory lets you load thousands of songs and play them directly, which is why they work in the water where Bluetooth can't reach. Bluetooth 6.0 is there for normal wireless listening on land.
The Back Bay Audio Runner, by a wide margin. Each earbud runs about 8 hours, and the charging case recharges them roughly nine more times for around 80 hours total. The QMHL X9 offers up to 10 hours of music or talk time per charge.
In my opinion, the Back Bay Audio Runner. It uses 10 mm dynamic drivers with a bass boost mode and an in-ear seal. The QMHL X9 uses bone conduction drivers with an open-ear design, which favors situational awareness over low-end impact.
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