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KZ PRX vs OPPO MH137: which should you buy?

Specs, scores and condensed review verdicts for the KZ PRX vs OPPO MH137, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.

Score breakdown

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

KZ PRX leads on 4 of 4 measures.

  • KZ PRX
  • OPPO MH137
HearWiki score
80
-
Sound
7.8
-
Value
8.6
-
Price (USD)
$55
$69

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?

Same generation

Both shipped in 2024. These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.

  • PRX2024
  • MH1372024

Specifications

PRXMH137
Type
Wired IEMs
Wired IEMs
Price (USD)
$55
$69
HearWiki score
80
Not scored
Released
2024
2024
Availability
Still sold new
Discontinued
Driver
planar magnetic
14.2 mm dynamic
Driver type
planar
dynamic
Driver size
-
14.2 mm
Drivers per side
-
1
Frequency response
-
20 Hz - 20 kHz
Impedance
15 Ω
32 Ω
Sensitivity
-
106 dB/mW
Active noise cancelling
-
No
Controls
-
buttons
Voice assistant
-
Yes
Weight
-
15 g
USB-C
-
Yes
Connector
-
USB-C
Microphones
-
1

What reviewers said

KZ PRX

The KZ PRX is a budget-friendly planar magnetic IEM that offers a balanced, warm-leaning sound with strong detail retrieval and capable imaging for its price. It excels in sub-bass presence and smooth mids, though it demands proper amplification and ear tips to perform at its best. Its soundstage is decent but not exceptionally wide, and the stock cable is a noted weak point.

  • Pro:Excellent value for a planar IEM
  • Pro:Balanced, warm sound with good detail
  • Pro:Strong imaging and separation for the price
  • Con:Requires a capable source and good ear tips
  • Con:Stock cable limits performance
  • Con:Soundstage is only medium-sized

OPPO MH137

The OPPO MH137 is a lightweight, semi-in-ear wired earphone that connects via USB-C for digital audio transmission. It features a single 14.2mm dynamic driver, an inline microphone, and button controls, making it a simple and affordable option for everyday listening without active noise cancellation.

  • Pro:Lightweight at only 15g for comfortable wear
  • Pro:Digital USB-C connection for clear signal transmission
  • Pro:Includes a microphone and button controls for calls and media
  • Con:No active noise cancellation, so external noise may intrude
  • Con:Semi-in-ear fit may not suit all ear shapes
  • Con:Single-driver design limits soundstage complexity

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 comparisonKZ PRXOPPO MH137