The Bose QuietComfort Ultra Earbuds 2nd Gen deliver industry-leading noise cancellation, with professional testing showing approximately 85% noise reduction.
What It Blocks
2nd Gen Improvements
Refined ANC algorithms provide smoother, more consistent performance, especially with voices and traffic sounds.
ActiveSense Technology
Adaptive Aware Mode that monitors your environment and selectively applies noise cancellation based on sound intensity, protecting your hearing while maintaining awareness.
Customization
The Bose app lets you adjust ANC intensity and create custom listening modes. Touch controls toggle between ANC, Aware, and off.
Note
Some users notice slight "hiss" in very quiet environments with ANC active.
Competition
Closely rivals AirPods Pro 3 (90% reduction) and outperforms most premium earbuds in ANC performance.
Here's how the Bose QuietComfort Ultra Earbuds 2nd Gen stack up against the AirPods Pro 3:
Noise Cancellation
Battery Life
Sound Quality
Comfort
Durability
Features
Price
Recommendation
The Bose QuietComfort Ultra Earbuds 2nd Gen may be challenging for smaller ears. The earbuds are bulky, and reviewers recommend those with small ears consider alternatives.
Fit System
Alternate Fit Kit
Available separately with extra-small and extra-large options.
Seal Test
The Bose app includes a fit test. Proper seal is essential for sound quality and noise cancellation.
Mixed Results
Some with smaller ears find success after experimenting. Others find even the smallest options too large.
Recommendations
The Bose QuietComfort Ultra Earbuds 2nd Gen deliver up to 6 hours of battery life with the earbuds alone, dropping to around 4 hours when Immersive Audio is active. The charging case provides three additional full charges, giving you approximately 24 hours of total listening time.
Real-World Performance
Independent testing shows actual battery life closer to 5.5 hours per charge. Performance varies based on volume levels, noise cancellation intensity, and feature usage.
Quick Charge Feature
A 20-minute charge provides roughly 2 hours of playback. Full charging takes about 2 hours via USB-C or wireless charging (Qi-compatible).
New in 2nd Gen
Wireless charging support is a welcome addition, making it easier to top up the case on any compatible charging pad.
How It Compares
Battery life falls behind competitors like the Sony WF-1000XM5 (8-9 hours) and AirPods Pro 3 (8+ hours). The QC Ultra Earbuds are best suited for users who don't mind carrying the case for longer listening sessions.
View current prices on the Bose QuietComfort Ultra Earbuds 2nd Gen
The Bose QuietComfort Ultra Earbuds 2nd Gen brings meaningful improvements over the original model. Here's what changed:
Major Upgrades
New Features
Unchanged
Should You Upgrade?
If you're happy with the 1st Gen, the upgrade isn't essential. If wireless charging and better call quality matter to you, the 2nd Gen delivers. First-time buyers should go with the 2nd Gen.
The Bose QuietComfort Ultra Earbuds 2nd Gen can handle workouts, though they're not designed as dedicated sports earbuds.
Water Resistance
IPX4 rating protects against sweat and light rain. Adequate for gym use but avoid submersion or heavy rain.
Fit System
Nine combinations of ear tips (S/M/L) and stability bands (1/2/3) provide secure fit for most users. Note: the earbuds are chunky and may not suit smaller ears.
Running Considerations
Some users report subtle "thunking" sounds from footsteps, especially when sweating affects the seal.
Safety Features
The Bottom Line
Excellent for casual workouts where audio quality is the priority. Serious runners or heavy gym users may prefer sports-focused alternatives with higher water resistance.
Connecting your Bose QuietComfort Ultra Earbuds 2nd Gen takes about a minute.
Enter Pairing Mode
iPhone Connection Settings → Bluetooth → Select "QuietComfort Ultra Earbuds"
Android Connection (Recommended)
Android Without App Settings → Connected Devices → Bluetooth → Pair new device
Fast Pair (Android) Many Android devices show automatic pairing notification. Just tap to connect.
Multipoint Connectivity Connect to two devices simultaneously. Pair your phone first, then repeat with a second device.
Troubleshooting
Bose Immersive Audio creates a speaker-like listening experience through earbuds, making sound feel like it's coming from in front of you rather than inside your head.
How It Works
Uses onboard sensors and Bose processing to create spatial audio. Unlike competitors, it works with any stereo source—no special content required.
Two Modes
What It's Best For
Less Impactful For
Battery Impact
Reduces battery life from 6 hours to approximately 4 hours.
The Verdict
Worth trying. Easy to toggle on/off via earbuds or Bose app. Many users love it; others use it selectively. It's a key differentiator of the QuietComfort Ultra lineup.
The Bose QuietComfort Ultra Earbuds 2nd Gen significantly improve call quality over the first generation with new AI SpeechClarity technology.
AI SpeechClarity Features
Real-World Performance
Self-Voice Monitoring
Hear yourself naturally during calls. Adjustable in Bose app.
Important: Fit Matters
Improperly positioned stability bands can block microphones. Ensure proper fit for best call quality.
Comparison
Good but not best-in-class. AirPods Pro 2/3 still lead for call quality.
Verdict
Excellent for regular business calls and video conferencing. Power users who prioritize calls should consider AirPods Pro or dedicated headsets.
The Bose QuietComfort Ultra Earbuds 2nd Gen offer sound customization through the Bose app, though options are more limited than some competitors.
EQ Features
Limitations
Default Sound
Bass-forward with emphasized treble ("V-shaped"). Popular for pop, hip-hop, and electronic music.
Recommended Settings
Other Customizations
Verdict
Adequate for basic adjustment. Audiophiles needing extensive EQ control may prefer Sony WF-1000XM5.
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