If you want natural, spacious sound with an impedance designed for a wide range of portable audio devices, choose Shure SRH1440; if you need individually matched drivers and a design optimized for external headphone amplification, choose Shure SRH1840. For workout use, though, neither is a purpose-built sport headphone: both are wired, open-back over-ear models. I’d choose between them for listening at home or in a studio, not for exercise where secure fit and isolation may matter more.
• Shure SRH1440: Its 37-ohm impedance is optimized for connection to a wide range of portable audio devices. Trade-off: its open-back design lets outside sound in and sound out.
• Shure SRH1840: Individually matched 40 mm drivers and a detachable dual-exit cable suit careful listening and studio use. Trade-off: its 65-ohm impedance is optimized for external headphone amplification.
• Choose the SRH1440 if you want open, natural-sounding headphones that are more accommodating of portable audio sources.
• Choose the SRH1840 if you want individually matched drivers and plan to use an external headphone amp for critical listening.
The SRH1440 is an open-back, circumaural headphone built around 40 mm neodymium drivers. Shure describes its sound as full-range, with rich, controlled bass; the open design is intended to create a natural presentation with a wide stereo image and added depth. Its 37-ohm impedance is optimized for a wide range of portable audio devices, making it the more straightforward fit if you don’t want your choice to hinge on owning an external headphone amplifier.
Its adjustable, padded headband has a steel frame, and the package includes a storage case, an extra set of velour earpads, and an additional cable. That combination makes sense for someone who wants a home listening or critical-listening headphone with replaceable accessories on hand. I’d skip it for workouts if you need a closed, isolating fit: the SRH1440 is open-back, over-ear, and wired, so its design is better suited to stationary listening than movement.
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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-09 · 6 min read · Independent comparison
The SRH1840 is also open-back and circumaural, but its defining detail is a pair of individually matched 40 mm neodymium drivers. Shure positions it for mastering and critical listening, describing smooth extended highs and accurate bass. Its 65-ohm impedance is optimized for connection to external headphone amplification systems, so it makes more sense for a listening setup that already includes—or is intended to include—a headphone amp.
Shure lists an aircraft-grade aluminum alloy yoke, stainless-steel grilles, a lightweight adjustable padded headband, and detachable dual-exit cables with gold-plated MMCX connectors. The package also includes a hard storage case, an extra pair of velour earpads, and two detachable cables. I’d favor it for a carefully assembled home or studio setup where those features matter. I’d pass if my priority were casual workout listening or a headphone that blocks surrounding sound; the SRH1840 is open-back and wired, not an exercise-focused design.
• For portable audio-device compatibility → Shure SRH1440. Its 37-ohm impedance is specifically described as optimized for a wide range of portable audio devices.
• For an external headphone amplifier → Shure SRH1840. Its 65-ohm impedance is optimized for connection to external headphone amplification systems.
• For individually matched drivers → Shure SRH1840. That is an explicit distinction in its design.
• For a supplied additional cable → Shure SRH1440. Its listed contents include an additional cable, alongside a storage case and replacement velour earpads.
• For two detachable cables and MMCX connections → Shure SRH1840. The detachable dual-exit cable design can make cable storage or replacement more convenient.
• For open, natural listening → either. Both are open-back, circumaural designs intended to deliver a natural sound and a wide stereo image.
• For the workout question → neither is my first choice. Both are wired, open-back over-ear headphones. They don’t match the usual priorities of an exercise-focused model that stays put and limits outside noise.
• For deciding whether these are the best over ear headphones for workout → reconsider the use case first. Their over-ear construction may appeal for stationary listening, but the open-back design is a practical drawback when you want isolation during exercise.
The two models share more than they differ in basic design. Both are wired, open-back Shure headphones with circumaural fit and 40 mm drivers. The decision is less about choosing one sound category over another and more about matching the headphone to your source and the details you value: the SRH1440’s portable-device-oriented impedance, or the SRH1840’s matched drivers and amplifier-oriented impedance.
Likewise, the phrase best sleep headphones for workout mixes two very different jobs. Neither model’s listed design is aimed at sleeping or exercise. Their padded over-ear construction and wired connection point toward deliberate listening, where you can sit comfortably and focus on music or audio work.
My Verdict
I’d choose the Shure SRH1440 for a general-purpose open-back listening setup because its 37-ohm impedance is optimized for a wider range of portable audio devices, while it still includes an extra cable and replacement earpads. The SRH1840 is the more compelling fit if I had an external headphone amp and specifically wanted individually matched drivers and detachable cables. For workout use, I’d buy neither; I’d look for a design made for movement rather than treating either open-back studio headphone as exercise gear.
For portable-device compatibility, the SRH1440 has the clearer advantage: its 37-ohm impedance is optimized for a wide range of portable audio devices. The SRH1840 is the more natural match for an external headphone amplification system and adds individually matched drivers.
Neither is designed to block outside noise. Both are open-back headphones, so they do not provide the isolation associated with a closed-back design. They’re better suited to settings where some sound leakage and ambient noise are acceptable.
I wouldn’t pick either as a workout-specific headphone. Both are wired, open-back, over-ear models; that design is better aligned with stationary listening than with exercise, where movement and surrounding noise can be concerns.
That depends on the listening setup, not a price comparison. The SRH1840’s individually matched drivers, detachable dual-exit cables, and amplifier-oriented impedance make it a sensible choice for a compatible studio or home rig. The SRH1440 is the simpler fit for a wider range of portable audio devices.
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