esonstyle X33 Bone Conduction Headphones review: open-ear, IPX7, 10h battery and Bluetooth 6.0

What this product is and what it’s for

The esonstyle X33 Bone Conduction Headphones are open-ear wireless sport earphones designed to keep your ears free while listening to music or taking calls during activity. Sound travels through the cheekbones rather than the ear canal, which means you can stay aware of your surroundings while training. This can be beneficial for road running, cycling on busy routes, or gym workouts where awareness matters. The unit weighs a slim 26g and relies on a flexible wraparound memory frame to stay in place through fast intervals and dynamic movements.

How it feels in use

On the move, the X33 aims for a lightweight, low-bulk experience. The open-ear design naturally emphasises situational awareness—helpful when you’re crossing streets or navigating a crowded gym. The build is described as sweatproof with IPX7 protection, so you can train in rain, during intense HIIT sessions, or after a run without worrying about moisture seeping in. The included sponge earplugs offer a private listening mode if you want more isolation, though using them defeats the open-ear advantage.

Battery life and charging

A full charge offers up to 10 hours of continuous playback at a moderate volume, which should cover most daily routines from a morning jog to a longer gym session. When the battery runs low, a quick 2-hour USB charge brings the headphones back to full. If you tend to forget to charge, the endurance is a practical daily battery baseline rather than a standout feature.

Connectivity and calls

The X33 uses next-gen Bluetooth 6.0 for quick pairing and a claimed 15-metre range. The connection is designed to be stable even when your phone isn’t immediately at hand. The built-in microphone is described as capable of picking up voice clearly, even with wind. Physical buttons provide tactile control for volume, track changes, and answering calls without needing to reach for your phone.

Sound profile and drivers

With 15mm drivers, the sound is described as full with clear vocals, good instrument separation and a punchy low end for an open-ear setup. If you’re after heavy bass or a particularly immersive listening experience, you may notice the limitations of bone conduction versus traditional in-ear headphones. The included earplugs create a second listening mode that isolates sound and reduces external noise, which can be useful for focused sessions or when you want to block out distractions without sacrificing safety.

What to check before you buy

• Ensure the design suits your activity—open-ear is safer for outdoors but may feel different if you’re used to in-ear isolation.
• If rain or sweat is a big factor, the IPX7 rating is a meaningful guard, but remember no tech is entirely immune to moisture under all conditions.
• Consider how you’ll manage battery life in longer events or travel days, 10 hours is solid for many workouts, but multi-hour rides or longer runs may require planning a top-up.
• If you value privacy or noise isolation, the sponge earplugs offer an effective option, though using them reduces the benefit of hearing the world around you.

Who it’s for and who it isn’t

This model is well-suited to runners, cyclists and gym-goers who want to stay aware of their surroundings while listening to audio. It’s a practical option if you prioritise lightweight comfort and a secure fit over absolute sound isolation. If you primarily want deep, thumping bass and a fully immersive soundstage, or if you’re sensitive to any external noise leakage, you might find a different design more to your taste.

How it compares to other approaches

Compared with traditional in-ear wireless headphones, bone conduction can feel more open and safer for street or trail use. It’s worth considering whether you prefer the freedom of air for your ears or the privacy of closed-ear listening. If you value durability and a straightforward water-resistant design for regular training, this model offers a robust, gym-friendly option without a hefty price tag. For those who train mostly indoors and in quiet environments, the open-ear approach may be less critical.

Practical usage example

Imagine you’re out for a city ride: you can hear distant traffic, cyclists’ bells, and your music plays through cheekbone conduction. If a park car pulls out, you’ll still notice the hazard early. When you finish and want a moment of private focus, you can slip in the sponge earplugs and enjoy a more secluded soundtrack without needing separate headphones.

Pros and cons at a glance

• Pros: lightweight, secure frame, open-ear safety, IPX7 protection, decent 15mm drivers, 10-hour battery, easy control.
• Cons: soundstage is inherently different from in-ear systems, open-ear can leak more external noise, bass may feel less pronounced depending on genre and volume.

FAQ (brief and practical)

• How durable is the frame during high-impact moves? The wraparound memory frame is designed to stay locked through typical gym sessions, but exceptionally rough movements could require adjustment.
• Can I answer calls while running? Yes, the built-in mic supports calls mid-stride, with physical buttons for quick control.
• Do the earplugs block sound completely? They provide two modes, combined isolation is decent but not absolute quiet.

Is it worth it?

Worth considering if you prioritise open-ear safety and a comfortable, sweat-ready form factor for outdoor runs or cycling. If your primary goal is deep bass and total noise isolation, you may prefer an alternative approach. Overall, the X33 offers pragmatic benefits for active users who want to balance awareness with music.