Sennheiser CX Plus
Support for aptX adaptive codec ensures high-resolution wireless audio, and these earbuds deliver up to 24 hours of total battery life with the case. The ergonomic design and multiple ear tip sizes provide a secure, all-day fit, while IPX4 splash resistance adds durability for active use. Best for commuters who prioritize effective active noise cancellation and clear Sennheiser sound on the move.
About This Earbuds
Support for aptX adaptive codec ensures high-resolution wireless audio, and these earbuds deliver up to 24 hours of total battery life with the case. The ergonomic design and multiple ear tip sizes provide a secure, all-day fit, while IPX4 splash resistance adds durability for active use. Best for commuters who prioritize effective active noise cancellation and clear Sennheiser sound on the move.
- Form factor in-ear
- Driver type dynamic
- Wireless
- Active noise cancellation
- Bluetooth version 5.2
- Battery life hours 8
- Case battery hours 24
- Water resistance IPX4
The 30-Second Version
The Sennheiser CX Plus delivers some of the best sound we've tested in true wireless earbuds. The ANC and app are a letdown though, so you're paying for audio excellence above everything else. If you're a sound-first buyer, these are a solid pick.
Overview
The Sennheiser CX Plus earbuds are all about one thing: sound. And they nail it. In our database, they land in the absolute top tier for audio quality, delivering crisp highs and deep, satisfying bass that you can adjust to your taste. They're comfortable for all-day wear once you find the right ear tips, and the touch controls are genuinely handy.
But the rest of the package feels a little less premium. The active noise cancellation is decent but doesn't match what Bose or Sony offer at this price, and the companion app is a constant source of gripes. If you're a music purist who doesn't mind a so-so app and just wants fantastic audio, these are worth a look. If you need the best noise cancelling, you'll want to keep scrolling.
Performance
Sound is where these shine, hitting the 97th percentile across our benchmarks. That's essentially top of the charts, with detail and separation that make you rediscover your music library. Comfort is a standout too, earning a 93rd percentile score, and the mic quality (90th) makes calls clear in quieter spots. ANC holds its own but isn't best-in-class; at the 88th percentile it's good, but not a game-changer. Battery life is solid at 8 hours, though that only lands in the middle of the pack overall, and connectivity is above average but not flawless. The real weak spot is the software experience, which lags behind the hardware.
Pros & Cons
Pros
- Phenomenal sound quality with crisp highs and deep, adjustable bass. 97th
- Comfortable fit for hours of listening once you pick the right tips. 93th
- Solid 8-hour battery life keeps you going all day. 90th
- Useful touch controls and a great transparency mode. 89th
Cons
- Active noise cancelling is underwhelming for the price.
- The companion app is clunky and frustrating to use.
- Bulky charging case feels cheap and isn't pocket-friendly.
- Some owners report connectivity hiccups and rare hardware failures.
The Word on the Street
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Wearing Style | true wireless |
| Ear Tips | XS, S, M, L |
| Weight | 0.0 kg / 0.0 lbs |
Audio
| Driver Type | dynamic |
| Driver Size | 7 |
| Drivers | 1 |
| Freq Min | 5 |
| Freq Max | 21000 |
| Impedance | 32 |
| Sensitivity | 114 |
| Max SPL | 114 |
| Hi-Res Audio | Yes |
| Codecs | SBC, AAC, aptX, aptX adaptive |
Noise Control
| ANC | Yes |
| ANC Type | single mic ANC per earbud |
| Transparency | Yes |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.2 |
| Profiles | A2DP, AVRCP, HFP |
| Multipoint | No |
Earbud Battery
| Battery Life | 8 |
| Charge Time | 1.5 |
| Fast Charging | 10 min for 1 hr music playtime |
| Charging | USB-C |
Case Battery
| Case Battery | 24 |
| Case Charging | USB-C |
| Wireless Charging | No |
| Capacity | 55 |
Microphone
| Microphone | Yes |
| Mic Count | 4 |
| NC Mic | Yes |
Features
| Voice Assistant | Siri, Google Assistant |
| Touch Controls | Yes |
| App | Sennheiser Smart Control |
| Volume Limiting | No |
| Gaming Mode | No |
| Bone Conduction | No |
| Water Resistance | IPX4 |
Value & Pricing
With prices bouncing between $180 and $247, you're paying primarily for that stellar sound. If audio quality is your number one priority, the CX Plus delivers in spades and feels like a fair deal. But the ANC and app experience lag behind rivals like the Sony WF-1000XM5 and Bose QuietComfort Ultra, which often cost about the same. So value depends on what you weight most: these are a no-brainer for sound-first listeners, but a tougher sell if you expect a polished all-around package.
Price History
vs Competition
Stacked against the Sony WF-1000XM5 and Bose QuietComfort Ultra 2nd Gen, the Sennheiser wins on pure sound quality, period. Those competitors beat it handily on noise cancelling and app polish though. Samsung's Galaxy Buds3 Pro offer tighter ecosystem integration if you're on a Galaxy phone, and the Technics EAH-AZ100-K are a strong alternative with similar audio chops. Even the budget-friendly EarFun Air Pro 4+ gives the CX Plus a run for its money on ANC performance. So the Sennheiser holds a narrow crown for audiophiles, but compromises start piling up if you care about anything beyond audio.
| Spec | Sennheiser CX Plus | Technics EAH-AZ100 EAH-AZ100 | Sony WF-1000XM6 WF-1000XM6 | Bose QuietComfort Ultra 896637-0010 | Samsung Galaxy Buds3 Pro SM-R630NZWAXAR | Apple AirPods Pro MFHP4LL/A |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | dynamic | Dynamic | Dynamic | Dynamic | Dynamic | Dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | true | true | true | true | true | true |
| Bluetooth Version | 5.2 | 5.3 | 5.3 | 5.3 | 5.4 | 5.3 |
| Battery Life Hours | 8 | 8 | 8 | 6 | 6 | 8 |
| Case Battery Hours | 24 | 28 | 24 | 18 | 26 | 24 |
| Water Resistance | IPX4 | IPX4 | IPX4 | IPX4 | IP57 | IP57 |
| Multipoint | false | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Sennheiser CX Plus | 88.5 | 90.4 | 79 | 97.4 | 73.9 | 93.4 | 80.7 | 89.3 |
| Technics EAH-AZ100 EAH-AZ100 Compare | 96.6 | 96.9 | 79 | 99.1 | 79.1 | 93.4 | 99.1 | 89.3 |
| Sony WF-1000XM6 WF-1000XM6 Compare | 96.6 | 99.7 | 79 | 96.2 | 75.6 | 70.9 | 99.1 | 94.4 |
| Bose QuietComfort Ultra 896637-0010 Compare | 96.6 | 90.4 | 79 | 96.4 | 47 | 93.4 | 97.8 | 96.7 |
| Samsung Galaxy Buds3 Pro SM-R630NZWAXAR Compare | 96.6 | 96.9 | 98.8 | 91.8 | 72.6 | 93.4 | 99.6 | 89.3 |
| Apple AirPods Pro MFHP4LL/A Compare | 96.6 | 80.5 | 98.8 | 83.3 | 75.6 | 70.9 | 97.8 | 99.3 |
Common Questions
Q: Can I use a single earbud independently?
Yes, you can use either the left or right earbud on its own. Each bud has a built-in mic, so you won't lose call or playback functionality in solo mode.
Q: How good is the call quality?
In our tests and per user feedback, the quad-mic system handles most indoor calls clearly. It won't match a boom mic in a noisy café, but it's well above average for true wireless earbuds.
Q: Is the ANC strong enough for a commute or flight?
It takes the edge off low rumbles but doesn't silence the world like high-end options from Bose or Sony. If blocking out everything is critical, you'll want something with stronger noise cancelling.
Who Should Skip This
If you need top-tier active noise cancelling for a loud commute or office, look at the Bose QuietComfort Ultra or Sony WF-1000XM5 instead. Similarly, if a polished app and seamless ecosystem matters, Samsung or Apple buds will treat you better. The CX Plus just isn't the right fit for those priorities.
Verdict
Buy these if sound is your religion and you're willing to forgive a mediocre app and just-okay ANC. They're for the person who queues up a FLAC file and zones out, not the commuter who needs to silence a subway car. The comfort and audio quality are genuinely top-notch, but know that you're trading away refinement in other areas to get there.