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Huawei FreeBuds Neo vs Sennheiser CX 400BT: which should you buy?

On aggregated review scores the Huawei FreeBuds Neo comes out ahead with a HearWiki score of 85. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Huawei FreeBuds Neo - Outstanding overall at around $109.

Score breakdown

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

Huawei FreeBuds Neo leads on 7 of 7 measures.

  • Huawei FreeBuds Neo
  • Sennheiser CX 400BT
HearWiki score
85
59
Sound
8.0
7.9
Noise cancelling
8.0
-
Battery
8.0
5.5
Calls
8.0
6.0
Value
9.0
2.0
Price (USD)
$110
$210

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

Huawei FreeBuds Neo (2026) against Sennheiser CX 400BT (2021). The Huawei FreeBuds Neo is the newer platform here: Top codec LDAC against aptX and ANC type Adaptive against None. It also adds Water resistance (IP55).

  • FreeBuds Neo20265 yr newer
  • CX 400BT2021
What differsFreeBuds NeoCX 400BT

Platform

Top codec
LDAC
aptX
ANC type
Adaptive
None

Everyday features

Water resistance
IP55
Not rated

Level on: Transparency mode, Custom EQ, Companion app.

Specifications

FreeBuds NeoCX 400BT
Type
True Wireless
True Wireless
Price (USD)
$110
$210
HearWiki score
85
59
Released
2026
2021
Availability
Sold new
Still sold new
Driver
dynamic
7 mm dynamic
Driver type
dynamic
dynamic
Driver size
-
7 mm
Drivers per side
-
1
Frequency response
10 Hz - 48 kHz
5 Hz - 21 kHz
Impedance
-
28 Ω
Sensitivity
-
107 dB/mW
Bluetooth
-
5.1
Codecs
LDAC
SBC, AAC, aptX
Multipoint pairing
-
No
Battery life
10 h
7 h
Battery life (ANC on)
6.5 h
-
Battery incl. case
40 h
20 h
Full charge time
-
90 min
Quick charge
-
10 min → 1 h
Wireless charging
-
No
Active noise cancelling
Yes
No
ANC type
adaptive
-
Transparency mode
Yes
Yes
Companion app
Yes
Yes
Custom EQ
Yes
Yes
Controls
touch
touch
Voice assistant
-
Yes
Weight
4.8 g
6 g
Case weight
-
37 g
Water resistance
IP55
none
Detachable cable
-
No
USB-C
-
Yes
Pad material
-
silicone
Connector
-
USB-C
Balanced connection
-
No
Microphones
4
2

What reviewers said

Huawei FreeBuds Neo

The Huawei FreeBuds Neo are lightweight, comfortable true wireless earbuds with adaptive active noise cancellation and a robust feature set for their price. They offer solid call quality, a lively sound signature, and practical extras like transparency mode and app support, making them a versatile mid-range option for travel and daily use.

  • Pro:Comfortable and lightweight fit
  • Pro:Effective adaptive ANC
  • Pro:Good call quality with 4 mics
  • Con:Battery life with ANC is modest
  • Con:May not satisfy audiophiles seeking specialized tuning
  • Con:Touch controls may require adjustment

Sennheiser CX 400BT

The Sennheiser CX 400BT deliver a warm, detailed sound signature that punches well above their current price, making them a strong pick for audio-focused listeners. They offer solid battery life, good call quality, and broad codec support, though their chunky design and lack of premium features like ANC or water resistance keep them from being a complete package. With a simple feature set and comfortable fit, they're best for those who prioritize sound over extras.

  • Pro:Excellent, warm sound quality
  • Pro:Good battery life with charging case
  • Pro:Reliable Bluetooth 5.1 with aptX support
  • Con:Bulky, less compact design
  • Con:No active noise cancellation
  • Con:No water or splash resistance

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

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