Audio-Technica ATH-M40x vs Bose Ultra Open Earbuds
The Verdict
Audio-Technica ATH-M40x delivers professional-grade sound with a flat, neutral 40mm driver response ideal for studio monitoring and critical listening, paired with excellent build quality and two detachable cables at an exceptional $99 price point. Bose Ultra Open Earbuds offer lifestyle versatility with innovative cuff-style design, head-tracked spatial audio, multipoint Bluetooth connectivity, and all-day battery (7.5 hrs + case), though they lack active noise cancellation and command a $299 premium. Choose the M40x if you prioritize accuracy and value in a stationary setup; select Bose Ultra if you need wireless mobility, modern convenience features, and don't mind compromising some sound fidelity for lifestyle integration. The M40x remains unmatched for budget-conscious audiophiles, while Bose targets convenience-focused users willing to pay for ecosystem integration.
Who Should Buy
Buy the Audio-Technica ATH-M40x if…
- →Flatter, more neutral tuning than the M50x — preferred by some engineers
- →Excellent value at $99 for professional-grade monitoring
- →Lightweight at 240 g for comfortable extended mixing sessions
Buy the Bose Ultra Open Earbuds if…
- →Unique cuff design is extremely comfortable for all-day wear
- →Bose OpenAudio delivers remarkably full sound for open earbuds
- →Wireless charging case adds convenience
Category Scores
Pros & Cons
Audio-Technica ATH-M40x
Pros
- Flatter, more neutral tuning than the M50x — preferred by some engineers
- Excellent value at $99 for professional-grade monitoring
- Lightweight at 240 g for comfortable extended mixing sessions
- Foldable and portable with detachable cables
- Reliable build quality trusted by studios globally
Cons
- Wired only — no wireless option
- Bass response is intentionally restrained — not for bass lovers
- Ear pads are thin and may need replacement for comfort
- Plastic build feels less premium than metal competitors
- No carrying case included
Bose Ultra Open Earbuds
Pros
- Unique cuff design is extremely comfortable for all-day wear
- Bose OpenAudio delivers remarkably full sound for open earbuds
- Wireless charging case adds convenience
- Multipoint and aptX Adaptive for high-quality streaming
- Ideal for situational awareness during outdoor activities
Cons
- Very expensive at $299 for earbuds without ANC
- Bass is inherently limited compared to sealed designs
- 7.5-hour battery is decent but not exceptional
- Sound leak is noticeable in quiet environments
Full Specifications
| Spec | Audio-Technica ATH-M40x | Bose Ultra Open Earbuds |
|---|---|---|
| Active Noise Cancelling | ||
| Type | over-ear | in-ear |
| Weight | 240 g | 6.5 g (each) |
| Battery | ||
| Battery life | N/A (wired) | 7.5 hrs, 19.5 hrs total with case |
| Charging | N/A | USB-C, wireless charging (Qi) |
| Drivers | 40mm large-aperture dynamic driver | Bose OpenAudio technology |
| Features | Flat, neutral frequency response for accurate monitoring, 40mm drivers with rare earth magnets and copper-clad aluminum wire, 90-degree swiveling ear cups, 2 detachable cables included, Foldable for portability, Circumaural design | Cuff-style design clips onto the ear, Bose Immersive Audio with head tracking, OpenAudio directional sound technology, Multipoint Bluetooth pairing, Wireless charging case, Customizable EQ via Bose Music app |
| Connectivity | ||
| Wired option | ||
| Codecs | aptX Adaptive, AAC, SBC | |
| Bluetooth | None (wired only) | 5.3 |
| Multipoint | ||
| Water Resistance | None | IPX4 |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
Explore more in headphones, see all Audio-Technica products or all Bose products. View full details for the Audio-Technica ATH-M40x or the Bose Ultra Open Earbuds.
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