Skip to content
HearWiki

Bose SoundTrue Ultra vs Kiwi Ears KE4: which should you buy?

Specs, scores and condensed review verdicts for the Bose SoundTrue Ultra vs Kiwi Ears KE4, 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.

Kiwi Ears KE4 leads on 3 of 4 measures.

  • Bose SoundTrue Ultra
  • Kiwi Ears KE4
HearWiki score
-
84
Sound
-
8.6
Value
-
8.6
Price (USD)
$130
$200

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

The Kiwi Ears KE4 is 9 years newer, but it is 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. For 9 years between them, that is a thin return - treat this as a restyle rather than a new platform.

  • SoundTrue Ultra2015
  • KE420249 yr newer

Specifications

SoundTrue UltraKE4
Type
Wired IEMs
Wired IEMs
Price (USD)
$130
$200
HearWiki score
Not scored
84
Released
2015
2024
Availability
Discontinued
Still sold new
Driver
dynamic
2DD + 2BA hybrid
Driver type
dynamic
hybrid
Driver configuration
-
2DD + 2BA
Driver size
-
10 mm
Drivers per side
1
4
Frequency response
20 Hz - 20 kHz
-
Impedance
-
28 Ω
Active noise cancelling
No
No
Controls
both
-
Weight
17.9 g
-
Detachable cable
-
Yes
Connector
-
3.5 mm

What reviewers said

Bose SoundTrue Ultra

The Bose SoundTrue Ultra wired in-ears deliver reliable, balanced sound through a single dynamic driver, with passive isolation courtesy of StayHear Ultra tips that also ensure a stable, comfortable fit. Built for everyday use, they include an inline remote and mic for easy call and playback management on compatible devices.

  • Pro:Secure, comfortable fit from StayHear Ultra tips
  • Pro:Effective passive noise isolation
  • Pro:Convenient inline controls and microphone
  • Con:No active noise cancellation
  • Con:Limited to wired connection
  • Con:Only one dynamic driver may limit soundstage

Kiwi Ears KE4

The Kiwi Ears KE4 is a wired hybrid IEM that offers a balanced, relaxing sound with a distinct twist on the popular 'New Meta' tuning, adding extra bass and treble sparkle. It delivers solid midrange clarity and a comfortable fit, making it a versatile choice for many genres, though its smooth presentation may not excite those seeking aggressive or highly dynamic sound.

  • Pro:Well-balanced hybrid tuning with rich lower mids and airy treble
  • Pro:Comfortable fit and broad genre versatility
  • Pro:Good resolution and clarity for its price
  • Con:Sub-bass can get overpowering at times
  • Con:Limited resolving power and dynamic impact
  • Con:Smooth tuning may feel less exciting than V-shaped alternatives

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.