Skip to content
HearWiki

Austrian Audio Hi-X15 vs Sennheiser MOMENTUM 4 Wireless: which should you buy?

On aggregated review scores the Sennheiser MOMENTUM 4 Wireless comes out ahead with a HearWiki score of 80. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Sennheiser MOMENTUM 4 Wireless - Great overall at around $234.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Sennheiser MOMENTUM 4 Wireless leads on 6 of 7 measures.

  • Austrian Audio Hi-X15
  • Sennheiser MOMENTUM 4 Wireless
HearWiki score
76
80
Sound
8.1
8.8
Noise cancelling
-
7.8
Battery
-
9.6
Calls
-
7.4
Value
8.0
9.2
Price (USD)
$150
$230

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Half a step newer

Sennheiser MOMENTUM 4 Wireless (2022) against Austrian Audio Hi-X15 (2021). The Sennheiser MOMENTUM 4 Wireless edges ahead on platform, but only just: ANC type Adaptive against None. It also adds USB-C.

  • Hi-X152021
  • MOMENTUM 4 Wireless20221 yr newer
What differsHi-X15MOMENTUM 4 Wireless

Platform

ANC type
None
Adaptive

Everyday features

USB-C
No
Yes

Specifications

Hi-X15MOMENTUM 4 Wireless
Type
Over-Ear
Over-Ear
Price (USD)
$150
$230
HearWiki score
76
80
Released
2021
2022
Availability
Still sold new
Still sold new
Driver
44 mm dynamic
42 mm dynamic
Driver type
dynamic
dynamic
Driver size
44 mm
42 mm
Drivers per side
1
1
Frequency response
12 Hz - 24 kHz
6 Hz - 22 kHz
Impedance
25 Ω
60 Ω
Sensitivity
99 dB/mW
106 dB/mW
Sensitivity (dB/Vrms)
113
-
Bluetooth
-
5.2
Codecs
-
SBC, AAC, aptX, aptX Adaptive
Multipoint pairing
-
Yes
Wireless range
-
10 m
Battery life
-
60 h
Battery life (ANC on)
-
60 h
Full charge time
-
120 min
Quick charge
-
5 min → 4 h
Wireless charging
-
No
Active noise cancelling
No
Yes
ANC type
-
adaptive
Transparency mode
-
Yes
Companion app
-
Yes
Custom EQ
-
Yes
Wear detection
-
Yes
Controls
-
touch
Voice assistant
-
Yes
Weight
225 g
293 g
Water resistance
-
none
Foldable
Yes
-
Detachable cable
Yes
-
USB-C
No
Yes
Connector
3.5 mm
-
Microphones
-
4
Call noise reduction
-
Yes
Call NR technology
-
beamforming

What reviewers said

Austrian Audio Hi-X15

The Austrian Audio Hi-X15 is a wired, over-ear headphone that delivers impressive studio-grade sound at a budget-friendly price. Its lightweight, foldable design and easy-to-drive 25-ohm impedance make it a practical choice for on-the-go tracking, mixing, and everyday listening.

  • Pro:Excellent price-to-performance ratio
  • Pro:Lightweight and comfortable for long sessions
  • Pro:Easy to drive with low impedance and high sensitivity
  • Con:Lacks active noise cancellation
  • Con:No USB-C connectivity
  • Con:Some technical specs are not fully disclosed by the manufacturer

Sennheiser MOMENTUM 4 Wireless

The Sennheiser MOMENTUM 4 Wireless are premium over-ear headphones that combine robust active noise cancellation with an exceptional 60-hour battery life, even with ANC on. They deliver balanced, high-quality audio through 42mm drivers and support a wide range of codecs, including aptX Adaptive. With a comfortable fit, touch controls, and multipoint Bluetooth 5.2, they offer strong all-around performance for daily use, though they lack water resistance and wireless charging.

  • Pro:Outstanding battery life of 60 hours with ANC active
  • Pro:High-quality sound with wide codec support (aptX Adaptive, AAC)
  • Pro:Comfortable over-ear design with adaptive noise cancellation
  • Con:No water resistance rating for sweat or rain protection
  • Con:Slightly heavy at 293 grams, which may affect long-term comfort
  • Con:No wireless charging support despite USB-C connectivity

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

Compare something else

Swap either side out, or start again from the picker.

New comparisonAustrian Audio Hi-X15Sennheiser MOMENTUM 4 Wireless