Bose Ultra Open 881046-0400
The open-ear design pairs Bose Immersive Spatial Audio with OpenAudio tech for private, rich sound while maintaining awareness, backed by a 7.5-hour bud battery and 27-hour total case life. Its 6g weight, IPX4 rating, and quick-charge (10 minutes for 2 hours) make it a rugged choice for constant movement. Best for runners and urban commuters who need situational awareness without sacrificing music, though its weak 48.2/100 call score makes it a poor fit for heavy phone use.
Snapshot
Pros & Cons
Pros
- Strong comfort (93th percentile) 93th
- Strong social proof (91th percentile) 91th
- Strong sound (84th percentile) 84th
- Strong build (79th percentile) 79th
Cons
- Below average anc (29th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews — so you can see whether early praise held up.
Based on 81 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | open-ear |
| Wearing Style | Dual Ear True Wireless Earbud |
| Weight | 0.0 kg / 0.0 lbs |
Audio
| Driver Type | Dynamic |
| Drivers | 1 |
| Codecs | AAC, SBC |
| Surround | Spatial Audio |
Noise Control
| ANC | No |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.3 |
| Profiles | A2DP, HFP |
| Multipoint | No |
| Range | 9.1 |
Earbud Battery
| Battery Life | 7.5 |
| Charge Time | 1 |
| Fast Charging | 10 Minutes for 2 Hours |
| Charging | USB-C |
Case Battery
| Case Battery | 19.5 |
| Case Charging | USB-C |
| Wireless Charging | No |
Microphone
| Microphone | Yes |
| Mic Count | 4 |
| NC Mic | No |
Features
| Touch Controls | Yes |
| App | Bose Music |
| Volume Limiting | No |
| Bone Conduction | No |
| Water Resistance | IPX4 |
vs Competition
| Spec | Bose Ultra Open 881046-0400 | Technics EAH-AZ100 EAH-AZ100 | Samsung Galaxy Buds Buds3 Pro | Sony WF-1000XM6 WF-1000XM6 | Apple AirPods Pro MFHP4LL/A | EarFun Air Pro Air Pro 4+ |
|---|---|---|---|---|---|---|
| Form Factor | open-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | Dynamic | Dynamic | Dynamic | Dynamic | Dynamic | hybrid |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Bluetooth Version | 5.3 | 5.3 | 5.4 | 5.3 | 5.3 | 6.0 |
| Battery Life Hours | 7.5 | 8 | 6 | 8 | 8 | 12 |
| Case Battery Hours | 19.5 | 28 | 26 | 24 | 24 | 54 |
| Water Resistance | IPX4 | IPX4 | IP57 | IPX4 | IP57 | IP55 |
| Multipoint | false | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Bose Ultra Open 881046-0400 | 28.9 | 54.6 | 78.6 | 84.4 | 68.7 | 93.3 | 77.8 | 91.2 |
| Technics EAH-AZ100 EAH-AZ100 Compare | 96.7 | 96.8 | 78.6 | 99 | 79 | 93.3 | 99.1 | 79.3 |
| Samsung Galaxy Buds Buds3 Pro Compare | 96.7 | 96.8 | 98.8 | 91.7 | 72.6 | 93.3 | 99.6 | 91.2 |
| Sony WF-1000XM6 WF-1000XM6 Compare | 96.7 | 99.8 | 78.6 | 96 | 75.5 | 70.6 | 99.1 | 91.2 |
| Apple AirPods Pro MFHP4LL/A Compare | 96.7 | 80.1 | 98.8 | 89.2 | 75.5 | 70.6 | 97.8 | 99.8 |
| EarFun Air Pro Air Pro 4+ Compare | 96.7 | 96.8 | 91 | 99.8 | 95.9 | 70.6 | 99.3 | 91.2 |
Price
Value & Pricing
Amazon.co.uk 1 offers From £235
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
