Sennheiser Sennheiser Accentum Open True Wireless Open-Ear Review
The Sennheiser Accentum Open are perfect for runners who need awareness, but a bad pick for anyone who takes calls or wants deep bass. Here's our full take.
The 30-Second Version
Great for runners, rough for callers. These open-ear buds trade bass and isolation for killer battery life and total awareness.
Overview
The Sennheiser Accentum Open are a solid pair of open-ear buds for people who hate feeling sealed off from the world. The one thing you need to know is that they're a situational tool, not your daily all-purpose headphones. They're fantastic for runners, cyclists, or anyone who needs to keep an ear on their surroundings, but they're a compromise. You're trading isolation and deep bass for safety and comfort.
Performance
The battery life is the star here. At 28 hours total with the case, it sits in the 92nd percentile in our database. That's genuinely impressive and means you can forget about charging for days. The sound quality, however, lands in the 39th percentile. It's clear and detailed thanks to those 11mm drivers, but the open design means bass just leaks out. You won't get that thumping low end you might expect from Sennheiser.
Pros & Cons
Pros
- Battery life is absolutely stellar and a real standout. 88th
- The open-ear design is perfect for outdoor activity where awareness is key. 87th
- Comfort is high—they don't heat up or press on your ear canal. 85th
- Build quality feels premium and durable. 83th
Cons
- Sound quality, especially bass, is a clear trade-off for the open design.
- Call quality is their weakest area, scoring just 32.6/100.
- No active noise cancellation, so they're useless in noisy environments.
- They're not a 'budget' pick, scoring only 49.3/100 in that category.
The Word on the Street
Specifications
Full Specifications
Design
| Form Factor | In-Ear |
| Wearing Style | Dual Ear True Wireless Earbud |
| Weight | 0.0 kg / 0.1 lbs |
Audio
| Driver Type | Dynamic |
| Driver Size | 11 |
| Freq Min | 100 |
| Freq Max | 10000 |
| Sensitivity | 109 |
| Codecs | AAC, SBC |
Noise Control
| ANC | No |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.3 |
| Profiles | A2DP, AVRCP, HFP |
| Multipoint | Yes |
Earbud Battery
| Battery Life | 6 |
| Charge Time | 1 |
| Fast Charging | 10min=1hrs |
| Charging | USB-C |
Case Battery
| Case Battery | 22 |
| Case Charging | USB-C |
| Wireless Charging | No |
| Capacity | 36 |
Microphone
| Microphone | Yes |
| Mic Count | 2 |
| NC Mic | Yes |
Features
| Touch Controls | Yes |
| Volume Limiting | No |
| Water Resistance | IPX4 |
Value & Pricing
At around $100, they're priced right for what they are: a specialized tool. You're not getting a do-everything champion, but you're getting a very competent, well-built pair of buds for a specific job. If open-ear is your priority, this is a good deal. If you want versatile performance, it's not.
Price History
vs Competition
If you need isolation, skip these and look at the Sony WF-1000XM5 or even Sennheiser's own sealed Accentum True Wireless In-Ear. The Sonys will blow these away on sound and ANC. If you're strictly in the open-ear camp and want something cheaper, the CMF Buds Pro 2 or Nothing Ear (a) are strong contenders, but they often sacrifice the premium fit and finish Sennheiser offers here.
| Spec | Sennheiser Sennheiser Accentum Open True Wireless Open-Ear | Sony Sony WF-1000XM5 Noise-Canceling True Wireless | Technics Technics EAH-AZ80 Noise-Canceling True Wireless | Bose Bose QuietComfort Ultra True Wireless | Apple Airpods Pro 3 Apple AirPods Pro with Wireless MagSafe Charging | Jabra Jabra Evolve2 Buds USB-A UC Earbuds with USB-A |
|---|---|---|---|---|---|---|
| Form Factor | In-Ear | In-Ear | In-Ear | In-Ear | In-Ear | In-Ear |
| Driver Type | Dynamic | Sony WF-1000XM5 Noise-Canceling True Wireless In-Ear Headphones (Black) | Dynamic | Dynamic | Dynamic | Dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Bluetooth Version | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 |
| Battery Life Hours | 6 | 6 | 7 | 6 | 8 | 8 |
| Case Battery Hours | 22 | 16 | 16 | 18 | 24 | 25 |
| Water Resistance | IPX4 | IPX4 | IPX4 | IPX4 | IP57 | IP57 |
| Multipoint | true | true | true | true | true | true |
Common Questions
Q: How long do the earbuds last on a single charge?
The earbuds themselves last about 7 hours of playback. The case holds about 3 extra charges, giving you that total 28-hour figure. It's plenty for a full day or even a weekend trip.
Q: Can I use these in a noisy coffee shop or on a plane?
No, and you shouldn't. They have no active noise cancellation, and the open design lets all that ambient sound in. They're made for quieter or outdoor environments where you want to hear your surroundings.
Q: Do they fit securely for running?
Yes, the stem design hooks over your ear and feels very secure. The IPX4 rating means they're sweat-resistant too, so they're a legit fitness companion.
Who Should Skip This
If you're looking for immersive sound, great call quality, or a do-everything pair of headphones, this isn't it. The open design is a fundamental compromise. Go get the Sony WF-1000XM5 or the Sennheiser Accentum True Wireless In-Ear instead.
Verdict
We recommend the Accentum Open if your primary use case is fitness, commuting, or any situation where you need to hear the world around you. They're comfortable, they last forever, and they sound good enough. But if you take calls often, work in a loud office, or just crave immersive audio, this isn't your pair. Go for a sealed design instead.