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Sennheiser CX SPORT vs Technics EAH-AZ100: which should you buy?

On aggregated review scores the Technics EAH-AZ100 comes out ahead with a HearWiki score of 86. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Technics EAH-AZ100 - Outstanding overall at around $250.

Score breakdown

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

Technics EAH-AZ100 leads on 6 of 7 measures.

  • Sennheiser CX SPORT
  • Technics EAH-AZ100
HearWiki score
47
86
Sound
6.6
9.2
Noise cancelling
-
8.6
Battery
3.5
8.7
Calls
5.0
7.8
Value
2.5
8.1
Price (USD)
$130
$250

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?

New platform

Technics EAH-AZ100 (2025) against Sennheiser CX SPORT (2018). The Technics EAH-AZ100 is the newer platform here: Bluetooth 5.3 against 4.2, Top codec LC3 against aptX, LE Audio (LC3) and ANC type Hybrid against None. It also adds Wireless charging.

  • CX SPORT2018
  • EAH-AZ10020257 yr newer
What differsCX SPORTEAH-AZ100

Platform

Bluetooth
4.2
5.3
Top codec
aptX
LC3
LE Audio (LC3)
No
Yes
ANC type
None
Hybrid

Everyday features

Wireless charging
No
Yes

Level on: Multipoint pairing, USB-C.

Specifications

CX SPORTEAH-AZ100
Type
True Wireless
True Wireless
Price (USD)
$130
$250
HearWiki score
47
86
Released
2018
2025
Availability
Discontinued
Sold new
Driver
10 mm dynamic
10 mm dynamic
Driver type
dynamic
dynamic
Driver size
10 mm
10 mm
Drivers per side
1
1
Frequency response
17 Hz - 21 kHz
20 Hz - 40 kHz
Impedance
28 Ω
16 Ω
Sensitivity
112 dB/mW
-
Bluetooth
4.2
5.3
Codecs
SBC, AAC, aptX, aptX Low Latency
SBC, AAC, LC3, LDAC
Multipoint pairing
Yes
Yes
Wireless range
10 m
10 m
Battery life
8.5 h
12 h
Battery life (ANC on)
-
10 h
Battery incl. case
-
28 h
Full charge time
90 min
120 min
Quick charge
-
15 min → 1.2 h
Wireless charging
No
Yes
Active noise cancelling
No
Yes
ANC type
-
hybrid
Transparency mode
-
Yes
Companion app
-
Yes
Custom EQ
-
Yes
Wear detection
-
Yes
Controls
-
touch
Voice assistant
-
Yes
Weight
15 g
11.8 g
Case weight
-
42 g
Water resistance
-
IPX4
USB-C
Yes
Yes
Microphones
1
2
Microphone type
-
MEMS

What reviewers said

Sennheiser CX SPORT

The Sennheiser CX Sport true wireless earbuds offer a bass-forward sound and a secure, lightweight fit that makes them a dependable workout companion. They support multipoint connectivity and aptX Low Latency for versatile use, though their price may be harder to justify against newer budget competitors. Battery life falls a bit short of the official estimate in real-world use, and the lack of ANC is expected at this level.

  • Pro:Secure, stable fit during exercise
  • Pro:Lively, bass-heavy sound signature
  • Pro:IPX4 water resistance for workouts
  • Con:Pricier than many capable rivals
  • Con:Real-world battery life trails the 8.5-hour claim
  • Con:No active noise cancellation

Technics EAH-AZ100

The Technics EAH-AZ100 are premium true wireless earbuds that deliver rich, detailed sound through a 10mm dynamic driver, with support for high-resolution LDAC streaming. They combine effective hybrid active noise cancellation with a comfortable, IPX4-rated design, plus smart features like multipoint pairing and wireless charging for versatile daily use. With up to 12 hours of playtime on a single charge, they are built to last through long listening sessions.

  • Pro:Excellent sound quality with LDAC support
  • Pro:Strong hybrid ANC and transparency modes
  • Pro:Long battery life with wireless charging case
  • Con:Premium price point
  • Con:Touch controls may be overly sensitive
  • Con:No aptX codec support

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

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New comparisonSennheiser CX SPORTTechnics EAH-AZ100