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Cambridge Audio Melomania A100 vs Mifo O9: which should you buy?

On aggregated review scores the Cambridge Audio Melomania A100 comes out ahead with a HearWiki score of 86. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Cambridge Audio Melomania A100 - Outstanding overall at around $99.

Score breakdown

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

Cambridge Audio Melomania A100 leads on 6 of 7 measures.

  • Cambridge Audio Melomania A100
  • Mifo O9
HearWiki score
86
51
Sound
9.0
5.9
Noise cancelling
7.8
-
Battery
8.5
4.8
Calls
8.0
3.2
Value
9.6
-
Price (USD)
$99
$60

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

Cambridge Audio Melomania A100 (2025) against Mifo O9 (2022). The Cambridge Audio Melomania A100 is the newer platform here: Bluetooth 5.4 against 5.0, Top codec aptX Lossless against AAC and ANC type Adaptive against None.

  • Melomania A10020253 yr newer
  • O92022
What differsMelomania A100O9

Platform

Bluetooth
5.4
5.0
Top codec
aptX Lossless
AAC
ANC type
Adaptive
None

Everyday features

Multipoint pairing
Yes
No
Custom EQ
Yes
No
Companion app
Yes
No
Water resistance
IPX5
IP68

Level on: Wireless charging, USB-C, Transparency mode.

Specifications

Melomania A100O9
Type
True Wireless
True Wireless
Price (USD)
$99
$60
HearWiki score
86
51
Released
2025
2022
Availability
Sold new
Discontinued
Driver
10 mm dynamic
6 mm dynamic
Driver type
dynamic
dynamic
Driver size
10 mm
6 mm
Drivers per side
1
-
Frequency response
20 Hz - 20 kHz
20 Hz - 20 kHz
Impedance
25 Ω
-
Bluetooth
5.4
5.0
Codecs
SBC, AAC, aptX Adaptive, aptX Lossless, LDAC
SBC, AAC
Multipoint pairing
Yes
No
Battery life
11 h
5.5 h
Battery life (ANC on)
6.5 h
-
Battery incl. case
39 h
22 h
Full charge time
66 min
-
Quick charge
10 min → 3.2 h
10 min → 0.5 h
Wireless charging
Yes
Yes
Active noise cancelling
Yes
No
ANC type
adaptive
none
Transparency mode
Yes
Yes
Companion app
Yes
No
Custom EQ
Yes
No
Wear detection
No
No
Controls
touch
touch
Voice assistant
Google Assistant, Siri
-
Weight
9.4 g
-
Case weight
38.7 g
-
Water resistance
IPX5
IP68
USB-C
Yes
Yes
Pad material
silicone
-
Microphones
6
-
Call noise reduction
Yes
-

What reviewers said

Cambridge Audio Melomania A100

The Cambridge Audio Melomania A100 are true wireless earbuds that deliver a versatile feature set at a mid-range price. They combine adaptive active noise cancellation with high-resolution wireless audio support, including LDAC and aptX Lossless, along with a comfortable, water-resistant design. With a lengthy total battery life and convenient extras like wireless charging and multipoint, they aim to be a well-rounded daily companion.

  • Pro:Excellent codec support including LDAC and aptX Lossless
  • Pro:Adaptive ANC and transparency mode for flexible listening
  • Pro:Long total battery life with wireless charging case
  • Con:Battery life drops significantly with ANC enabled
  • Con:Touch controls may take time to master
  • Con:No mention of ear tips or fit accessories in specs

Mifo O9

The Mifo O9 is an affordable true wireless earbud designed for active lifestyles, offering a secure fit and Bluetooth 5.0 for reliable connections. It includes wireless charging, IP68 water resistance, and a transparency mode, making it a practical choice for workouts and daily commutes rather than a high-end audio experience.

  • Pro:IP68 water resistance for tough environments
  • Pro:Wireless charging and USB-C support
  • Pro:Transparency mode for ambient awareness
  • Con:No active noise cancellation
  • Con:Only SBC and AAC codecs
  • Con:No app support or custom EQ

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 comparisonCambridge Audio Melomania A100Mifo O9