Bose QuietComfort Earbuds (2nd Gen) vs Sennheiser Momentum True Wireless 4

What QuietComfort Earbuds (2nd Gen) does better (3) and where Momentum True Wireless 4 wins (3) — every spec side by side.

5.7Score

3 advantages≈ $150

6.4Score

3 advantages≈ $170

Higher score

5.4Noise control & calls5.2

6.0Battery4.4

2.3Build & features3.5

Why is QuietComfort Earbuds (2nd Gen) better than Momentum True Wireless 4?

Hi-res codec (LDAC / aptX HD / LHDC)No · QuietComfort Earbuds (2nd Gen): Yes
aptXNo · QuietComfort Earbuds (2nd Gen): Yes
Earbud weight (each)10 g vs 6.2 g+61%

Specifications

Only differences	Bose QuietComfort Earbuds (2nd Gen)≈ $1505.7	Sennheiser Momentum True Wireless 4≈ $1706.4
Sound
Fit	In-ear	In-ear
Ear cup design	Closed-back	Closed-back
Driver type	Dynamic	Dynamic
Driver size	—	7 mm
Lowest frequency	—	5 Hz
Highest frequency	—	21,000 Hz
Sensitivity	—	107 dB
Hi-Res Audio	—	Yes
Adjustable equaliser	Yes	Yes
Noise control
Active noise cancelling	Yes	Yes
Adaptive ANC	—	Yes
Transparency / ambient mode	Yes	Yes
Microphones	3	3
Noise reduction for calls	—	Yes
Battery & charging
Battery life	8 h	7 h
Battery life with ANC	—	6 h
Total with charging case	32 h	30 h
Charging time	1.5 h	4 h
Quick charge (claimed)	—	8 min → 1 h
Fast charging support	—	Yes
Wireless charging (case)	Yes	Yes
Connectivity
Wireless	Yes	Yes
Bluetooth version	5.3	5.4
Bluetooth codecs	SBC	aptX Lossless, aptX Adaptive, aptX, LC3, AAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)	No	Yes
aptX	No	Yes
LDAC	No	No
Multipoint (two devices)	Yes	Yes
LE Audio	—	Yes
Auracast	—	Yes
USB-C	Yes	Yes
Smart & streaming
Voice assistant	—	Alexa, Google Assistant
Design & build
Earbud weight (each)	10 g	6.2 g
Protection rating	IPX4	IP54
Water resistance (IPx)	IPx4	IPx4
Dust protection (IP)	—	5
Colours	—	Black Copper, Black Graphite, Denim, Gold, White Silver
Features
Touch controls	Yes	Yes
Hands-free calls	Yes	Yes