Wireless Earbuds
Sennheiser MOMENTUM True Wireless 4
8.5/10SoundGuys scoreRead our review ›
$299.95at Amazon
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1 / 10Bose
Bose Ultra Open
Sound
2.3/ 5
SoundMDAQS Overall2.3
1.05.0
A 2.3 puts its audio quality in the bottom 10% of wireless earbuds we've measured.
Measured on 61 of the 259 we've cataloged.
See the lab data ↓Frequency response · Audio quality
No one has reported on this pair yet.
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Own the Bose Ultra Open?
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Key specs
Battery Life Earbuds
8.9 hAbove average8.9 h
3 h15 h
above average for wireless earbuds — based on 241 of 259 we've cataloged.
Battery Life With Case
26.5 hBelow average26.5 h
7 h60 h
below average for wireless earbuds — based on 239 of 259 we've cataloged.
IP Rating
IPX4Most commonIPX436%IP5516%IP5416%IPX511%
IPX4 is the most common — on 36% of the 238 wireless earbuds we've cataloged (of 259).
Noise Cancellation Type
NoneActive60%Passive14%Hybrid10%None8%
None appears on 8% of the 176 wireless earbuds we've cataloged (of 259).
Battery
- Battery Life Earbuds
- 8.9 h
- Battery Life With Case
- 26.5 h
- Full Charge Minutes
- 60 min
- Battery Life Anc On
- 4.5 h
- Fast Charging
- Yes
Build
- IP Rating
- IPX4
- Sweat Resistance
- Yes
- Water Resistance
- Yes
- Material Chassis Primary
- Plastic
Sound
- Noise Cancellation Type
- None
- Ambient Mode
- Yes
- Frequency Response Signature
- U-shaped
- Impedance
- 32 Ω
Connectivity
- Bluetooth Version
- 5.3
- Bluetooth Codec
- SBC, AAC, aptX Adaptive, Snapdragon Sound
- Connection Type
- Bluetooth
- Headphone Jack
- No
- Multipoint Devices
- Yes - 2 devices
Design
- Earbud Form Factor
- Open-ear
- Color Options
- Black, white smoke
- Wearing Style
- Ear hook
- Weight Per Earbud
- 6 g
- Weight With Case
- 57 g
Features
- Certified For
- Google Fast Pair
- Companion App
- Yes
- Control Type
- Physical buttons
- Eq Customization
- Yes
- Spatial Audio
- Yes
Lab data
How we test ›Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Bose Ultra OpenSoundGuys Headphone Preference Curve
Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | -42.0 |
| 25 | -36.2 |
| 32 | -37.7 |
| 40 | -28.9 |
| 50 | -20.3 |
| 63 | -12.4 |
| 80 | -6.0 |
| 100 | -2.5 |
| 125 | -0.1 |
| 160 | -1.1 |
| 200 | -1.6 |
| 250 | -2.2 |
| 315 | -2.4 |
| 400 | -2.5 |
| 500 | -2.5 |
| 630 | -1.9 |
| 800 | -0.9 |
| 1000 | 0.0 |
| 1250 | 1.2 |
| 1600 | 3.2 |
| 2000 | 5.3 |
| 2500 | 8.3 |
| 3150 | 13.6 |
| 4000 | 19.4 |
| 5000 | 14.3 |
| 6300 | 12.1 |
| 8000 | 3.8 |
| 10000 | 3.3 |
| 12500 | 8.4 |
| 16000 | 0.2 |
| 20000 | -14.1 |
Bose Ultra Open
2.8
2.4
2.4
2.3
Multi-Dimensional Audio Quality Scores (1–5), modeled from the measured response. Higher is better across timbre, distortion, and immersiveness — add other models to see where this one lands.
SoundGuys review
Battery life7.3
Comfort & fit7.5
Connectivity5.0
Design6.0
Portability7.5
Features7.0
The verdict
The Bose Ultra Open Earbuds bring a unique "cuff-like, clip-on" design to the open-ear world, but unfortunately, they still suffer from sonic compromises like other open-ear options.
✓Liked: Allow you to maintain awareness naturally, Secure fit, IPX4
✕Could be better: Sound quality, Expensive, Subpar microphone performance
Owners
How we verify ownersNobody who owns the Bose Ultra Open has written in yet.
Owner notes are not paid for, not solicited from specific owners, and not edited by us. The commission SoundGuys may earn on this page comes from retail links, never from notes.
Own the Bose Ultra Open?
Three answers, four quick reads, one sentence nobody tells you before buying. Shown under a pseudonym.
Related comparisons
Browse all versus ›See how the Bose Ultra Open stacks up against the competition.
Features & Opinions
More from the team ›Commentary and deep dives from the SoundGuys editorial team.
Bose ditched the headphone jack without ditching the headphone jackThis is the one cable I want every pair of USB-C headphones to include.
Dave CarrVideo Producer/WriterSonos or Bose? Here's how I'd choose my home theaterBoth systems provide an immersive experience, but what you plan to add later could make one a much better fit.Dave CarrVideo Producer/WriterSkip the $129 Bose SoundLink Micro: Here are 2 look-alikes I'd buy for lessYou don't have to spend a lot of money to get a great ultra-portable Bluetooth speaker. Here's two I'd recommend instead.Dave CarrVideo Producer/WriterBose SoundTouch is officially dead, but your speakers may still surviveBose didn’t completely brick SoundTouch speakers, but the shutdown still changed what owners originally paid for.Dave CarrVideo Producer/WriterDon't buy the JBL Charge 6. Buy these three speakers insteadThe JBL Charge 6 is a solid speaker, but these three alternatives may be worth buying instead.Dave CarrVideo Producer/WriterApple just took down Bose at their own gameFor decades, Bose has prided itself on this one major advantage of their headphones and earbuds. Now, Apple has beat them at their own game.
Chase BernathBrand & Partnerships ManagerHow long should your earbuds last? Our battery tests have the answerEarbuds don't last long, but how much is enough?
Christian ThomasEditor-at-large
Dave CarrVideo Producer/WriterSonos or Bose? Here's how I'd choose my home theaterBoth systems provide an immersive experience, but what you plan to add later could make one a much better fit.Dave CarrVideo Producer/WriterSkip the $129 Bose SoundLink Micro: Here are 2 look-alikes I'd buy for lessYou don't have to spend a lot of money to get a great ultra-portable Bluetooth speaker. Here's two I'd recommend instead.Dave CarrVideo Producer/WriterBose SoundTouch is officially dead, but your speakers may still surviveBose didn’t completely brick SoundTouch speakers, but the shutdown still changed what owners originally paid for.Dave CarrVideo Producer/WriterDon't buy the JBL Charge 6. Buy these three speakers insteadThe JBL Charge 6 is a solid speaker, but these three alternatives may be worth buying instead.Dave CarrVideo Producer/WriterApple just took down Bose at their own gameFor decades, Bose has prided itself on this one major advantage of their headphones and earbuds. Now, Apple has beat them at their own game.Chase BernathBrand & Partnerships ManagerHow long should your earbuds last? Our battery tests have the answerEarbuds don't last long, but how much is enough?Christian ThomasEditor-at-largeMore Wireless Earbuds
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