
Bose QuietComfort Ultra
Score: 72/100
Beyerdynamic Amiron 300
Score: 70/100Rankings

The Bose QuietComfort Ultra delivers top-tier ANC, immersive head-tracked audio, and high-resolution aptX Adaptive sound, but its battery life and lack of wireless charging limit endurance.

The Amiron 300 delivers audiophile-grade sound and LDAC high-resolution support in a compact, IP54-rated true-wireless design. Battery life is solid, and the app offers deep EQ customization, but ANC falls short of market leaders and touch controls feel finicky.
| Attribute | ![]() | ![]() |
|---|---|---|
5 hours | 10 hoursbest | |
— | 15 mbest | |
9.3 mm | 10 mmbest | |
— | 20 Hzbest | |
— | 40,000 Hzbest | |
| ↓ lower better | 20 gbest | 260 g |
12 months | 24 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(2) | ||
Driver Size (mm) | 9.3 mm | 10 mm |
Supported Codecs | aptX Adaptive, AAC, SBC | SBC, AAC, LDAC |
Warranty(1) | ||
Warranty Period (months) | 12 months | 24 months |
Build & Design(3) | ||
Weight (g) | 20.0 g | 260 g |
IP Rating | IPX4 | IP54 |
Ear Tip Sizes | 9 | XS, S, M, L, XL |
Battery & Power(1) | ||
Battery Life (hours) | 5 hours | 10 hours |

Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the QuietComfort Ultra for its unrivaled ANC, comfortable ergonomics, and immersive spatial audio, while noting the lack of wireless charging and modest battery life.
Everyday users overwhelmingly applaud the earbuds' noise cancellation, immersive soundstage and comfort, but complain about the missing wireless charging, bulky case, and short battery life.

“Best noise cancellation I've ever used - blocks out airplane engines completely.”

“The Immersive Audio makes music feel like it's coming from outside my head - it's incredible.”

“I can wear them for hours without discomfort - the fit is perfect.”




Professional reviewers commend the Amiron 300 for its detailed sound and LDAC support, but note that its ANC lags behind top competitors and the touch controls lack refinement.
Everyday users love the sound detail, fit, and EQ app, yet many report ANC artifacts, case ejection issues, unstable multipoint pairing, and muffled microphone quality in noisy settings.