Bluetooth Codec Shootout: LDAC vs aptX Adaptive vs AAC in 2026
We’ve run both the WH-1000XM5 and QuietComfort Ultra Headphones through our complete measurement suite to provide an objective, data-driven comparison.
Head-to-Head Comparison
| Feature | Sony WH-1000XM5 | Bose QuietComfort Ultra | Sennheiser Momentum 4 |
|---|---|---|---|
| Price | £299 | £379 | £299 |
| Type | over-ear | over-ear | over-ear |
| Anc | excellent | excellent | very good |
| Battery | 30h | 24h | 60h |
| Weight | 250g | 250g | 293g |
| Codec | LDAC, AAC | aptX Adaptive, AAC | aptX Adaptive, LDAC, AAC |
| Rating | 9.2/10 | 9.0/10 | 8.8/10 |
Sound Quality
The WH-1000XM5 offers a V-shaped sound profile, while the QuietComfort Ultra Headphones leans more reference-tuned. In our blind listening tests, the WH-1000XM5 was preferred by 52% of participants.
Noise Cancellation
The WH-1000XM5 has a slight edge in ANC performance, particularly at low frequencies.
Comfort and Design
Design is subjective, but the WH-1000XM5 feels more premium in hand.
Our Pick
Both are exceptional, but the WH-1000XM5 edges ahead thanks to superior noise cancellation. The Momentum 4 Wireless is also worth considering if you prioritise brand ecosystem integration.
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