If you want water-focused, short-cord wired headphones for lap swimming and a customizable in-ear fit, choose Swimbuds Sport Waterproof Swimming; if you need wireless workout earbuds with long battery life, active noise cancelling, and adjustable awareness, choose JBL Endurance Race 2. For side sleepers, neither sheet confirms a sleep-specific design, so fit and comfort should take priority over assuming either is made for sleeping.
Swimbuds Sport Waterproof Swimming vs JBL Endurance Race 2 at a Glance
• Swimbuds Sport’s biggest strength: a 40 cm short cable designed to reduce tangling and drag during laps, plus 11 pairs of tips in four styles. Trade-off: it is wired, with no noise-control feature.
• Swimbuds Sport is the more swimming-specific choice; JBL Endurance Race 2 suits workouts where wireless convenience and listening modes matter.
• Choose Swimbuds Sport if you want a short cable and a wide selection of tip styles; choose JBL if you want Bluetooth, ANC, and Smart Ambient features.
Swimbuds Sport is built around lap swimming. Its 40 cm, roughly 15-inch, cable is shorter than a typical headphone cable, which is intended to reduce snagging and drag while moving through the water. The design is meant to tuck under a goggle strap, with the cable running upward from the earbuds and beneath the strap. That makes the setup especially relevant to swimmers who want their listening gear arranged alongside their goggles rather than hanging loose.
The fit options are a major part of its appeal. The package includes 11 pairs of tips across four styles, so there is room to try different shapes for a secure seal. A good seal matters for both comfort and keeping water out of the earbud fit. Swimbuds also describes the construction as watertight, with reinforced cords and a body intended for regular swim sessions. The listed rating is IPX8 at 10 feet. It uses a 3.5 mm jack and is wired, so the buyer needs a compatible wired audio source; it does not offer Bluetooth listening.
I would consider it for a swimmer who values a goggle-friendly cable and wants multiple tip styles to work with. It may also appeal to someone looking for waterproof Bluetooth earbuds for side sleepers only if the actual priority is waterproof listening rather than wireless convenience: this model is wired, and the data does not establish that it is comfortable for sleeping on one’s side. Its in-ear bud shape may be a consideration for pillow use, but the sheet gives no sleep-fit claim.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-24 · 8 min read · Independent comparison
Who should skip it: Skip Swimbuds Sport if you specifically need Bluetooth, active noise cancellation, or a cable-free setup.
JBL Endurance Race 2 is the more flexible everyday workout option if wireless listening is the priority. It connects over Bluetooth 5.3, has no headphone jack, and is designed around a true-wireless format. That removes the short wired connection used by Swimbuds Sport, while the 10-meter Bluetooth range gives a stated limit for staying connected to a paired device. For gym sessions, runs, or general workouts, the wireless design is the clearest practical distinction.
Its fit system uses an ergonomic wing enhancer with Twistlock technology, alongside three sizes of ear tips. That combination is intended to provide a stable seal during movement. The earbuds also include Active Noise Cancelling and Smart Ambient, so listeners can reduce distracting noise or let more of their surroundings through without removing the earbuds. Those features make them more adaptable than a swim-focused wired design, though they do not by themselves establish that the earbuds are suitable for sleeping on a side.
Battery life is another strong point. JBL lists up to 12 hours from the earbuds and three additional full charges from the case, for up to 48 hours total with ANC off. A 10-minute charge is listed as providing another four hours of playback. The earbuds are rated IP68 for dust and water protection, but the charging case is only IPX2 water-resistant, not waterproof. JBL specifically advises drying the earbuds and case before charging. That distinction matters if you plan to use them around pools or in wet training conditions: the buds are protected, but the case still needs care.
Who should skip it: Skip JBL Endurance Race 2 if your main requirement is a short-cord setup designed specifically to tuck under swim goggles.
• Best for lap swimming with a short cable → Swimbuds Sport Waterproof Swimming. Its 40 cm cord is designed to reduce tangles and drag, and the wear instructions specifically describe fitting it beneath a goggle strap.
• Best for true wireless workouts → JBL Endurance Race 2. It uses Bluetooth 5.3 and has no headphone jack, so there is no cable connecting the earbuds to an audio source.
• Best for trying several ear-tip styles → Swimbuds Sport. It includes 11 pairs across four styles, compared with three sizes of tips for JBL.
• Best for switching between quiet and awareness modes → JBL Endurance Race 2. ANC and Smart Ambient let you adjust how much outside sound you hear.
• Best for stated total playback time → JBL Endurance Race 2. It lists up to 48 hours with ANC off when the earbuds and charging case are used together.
• Best for a wired 3.5 mm connection → Swimbuds Sport. JBL has no headphone jack and connects wirelessly.
• Best for dust protection alongside water protection → JBL Endurance Race 2. Its IP68 rating covers dust and water; Swimbuds Sport lists IPX8 water protection.
• Best for side sleepers seeking a confirmed sleep design → Neither. Neither data sheet makes a side-sleeping comfort claim, so I would not treat either as a proven sleep headphone.
Buying Considerations
Think first about where and how you intend to use the earbuds. Swimbuds Sport is the more purpose-built choice for swimming laps: its short cable, goggle-strap routing, and assortment of tips all point toward a water-focused setup. JBL Endurance Race 2 is more suited to workouts where Bluetooth, noise controls, and a charging case are useful. The word “waterproof” alone does not make their designs interchangeable.
Comfort is personal, and the fit details suggest different approaches rather than a universal winner. Swimbuds gives you many tip styles to try; JBL pairs three ear-tip sizes with wing enhancers that use a twist-locking fit. For side sleepers, neither product’s specifications confirm that its shape will avoid pressure against a pillow. If sleeping comfort is essential, check the physical design and fit carefully rather than assuming either one is the best ear clip headphones for side sleepers; both are described as in-ear products, and JBL’s listed earpiece shape is a hook.
Sound preferences also need a cautious read. JBL’s description highlights Pure Bass, while Swimbuds lists HydroBeat technology and clear underwater audio. Those descriptions point to different intended listening contexts, but they do not provide a direct comparison or guarantee how either will sound to a particular listener. If you want deep bass headphones for side sleepers, JBL’s bass-focused description may catch your attention, but neither sheet establishes that the earbuds are designed for sleeping or that bass performance will suit every listener.
Finally, consider the connection you need. Swimbuds uses a 3.5 mm jack and a cable; JBL is Bluetooth-only. That is a practical dividing line, not a minor detail. Check the current price on Amazon if cost affects your decision, but choose based on the fit, connection, and use case you actually need.
I would choose Swimbuds Sport for regular lap swimming because its short cord, goggle-oriented fit, and range of tip styles are built around that use.
I would choose JBL Endurance Race 2 for wireless workouts, longer stated playback, ANC, and Smart Ambient.
For side sleepers, I would not call either one a sleep-specific pick based on the available design details.
My overall recommendation is Swimbuds Sport if swimming is the deciding factor; JBL is the better fit if everyday wireless features matter more.
FAQ
The specifications do not describe them as sleep earbuds or confirm comfort when pressed against a pillow. They use an in-ear design with wing enhancers, so side-sleeping comfort will depend on the individual fit.
No. Swimbuds Sport is wired and uses a 3.5 mm headphone jack. JBL Endurance Race 2 is the wireless option, using Bluetooth 5.3 and offering no headphone jack.
JBL Endurance Race 2 lists up to 48 hours of total playback with ANC off, including the charging case, and up to 12 hours from the earbuds between case charges. Swimbuds Sport is wired, so it has no battery-life figure in its specifications.
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