CMF Ear (R) B171 2024 vs OnePlus Buds 4
Compare specifications, current prices and availability. Choose up to four products from the same family.
Add up to 2 more items to compare
Sony WH-1000XM4KSh 25,000.00
Sony WF-1000XM4KSh 29,500.00
Apple AirPods Pro 2KSh 28,500.00
Sony WH-1000XM5 HeadphonesKSh 33,500.00
Quick comparison
At a glance
Key specifications and important differences. Full details follow below.
| Feature |  CMF Ear (R) B171 2024 |  OnePlus Buds 4 |
|---|---|---|
| Price | KSh 16,500.00 | KSh 16,000.00 |
| Drivers | 11mm ceramic dynamic driver | 11mm woofer (30-layer ceramic-metal) + 6mm tweeter (flat diaphragm) per earbud |
| Connection | Bluetooth | Bluetooth 5.4, LHDC 5.0 for Hi-Res, 47ms low latency, Google Fast Pair |
| Active Noise Cancellation | Up to 45dB ANC | Adaptive ANC up to 55dB, real-time adjustment, Transparency Mode |
| Battery Life | Up to 40.5 hours with charging case | Up to 11 hours per bud (ANC off, AAC)/9 hours (LHDC); Case: Up to 34 hours additional (ANC off) |
| Water & Dust Resistance | IP54 earbuds; IP55 case | IP55 (earbuds) |
| Weight | 4.62g per earbud; 51.9g case | Earbud: 4.5g each; Case: 40g |
No differences in these highlights for the visible products.
Full specifications
2 of 4 products
No specification differences for the visible products. Turn off “Show differences only” to see all published specifications.
General
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Brand | — | OnePlus |
| Model | Ear (2024) (B171) | Buds 4 |
| Announced | 2024 | 2025 |
| Type | True Wireless In-Ear Earbuds | True Wireless In-Ear Earbuds |
| Color | Black, White | Zen Green, Storm Gray |
Design
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Weight | 4.62g per earbud; 51.9g case | Earbud: 4.5g each; Case: 40g |
Battery & Charging
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Battery Life | Up to 40.5 hours with charging case | Up to 11 hours per bud (ANC off, AAC)/9 hours (LHDC); Case: Up to 34 hours additional (ANC off) |
| Charging Port | USB-C (case) | USB-C, 10 minutes for 11 hours (ANC off) |
| Wireless Charging | Yes (case) | — |
| Charging Time | — | 10 minutes for 11 hours (ANC off); Full charge: 1 hour for earbuds, 2 hours for case |
Connectivity
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Connection | Bluetooth | Bluetooth 5.4, LHDC 5.0 for Hi-Res, 47ms low latency, Google Fast Pair |
| Bluetooth | Bluetooth 5.3 | 5.4 with dual-device connection |
| Multipoint Connection | Yes | — |
| App Support | Nothing X | — |
Features
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Special Features | Active Noise Cancellation + Hi-Res Audio | Dual DACs; Hi-Res Audio; Golden Sound personalization |
Audio
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Drivers | 11mm ceramic dynamic driver | 11mm woofer (30-layer ceramic-metal) + 6mm tweeter (flat diaphragm) per earbud |
| Audio Codecs | LHDC 5.0, LDAC, AAC, SBC | — |
| Active Noise Cancellation | Up to 45dB ANC | Adaptive ANC up to 55dB, real-time adjustment, Transparency Mode |
| Transparency / Ambient Mode | Yes | — |
| Microphones | Three microphones per earbud | 3 per earbud (feed-forward, talk, feed-back) with AI clear calls |
| Audio Features | 24-bit Hi-Res Audio | Dual DACs, Hi-Res Audio, OnePlus 3D Audio with head tracking, Golden Sound personalization, BassWave, Sound Master EQ |
| Frequency Response | — | 20Hz – 40kHz (with LHDC) |
Charging Case
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Case Type | Charging case | Charging case |
| Case Battery Life | Included in the total battery-life figures above | Included in the total battery-life figures above |
| Case Charging | USB-C | USB-C |
| Case Charging Port | USB-C | USB-C |
| Case Weight | 51.9g | : 40g |
| Case Features | Protective charging case | Protective charging case |
Design & Controls
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Controls | Touch controls for playback, calls and listening modes | Touch: swipe for volume, taps for play/pause/track, long-press for ANC toggle |
| Water & Dust Resistance | IP54 earbuds; IP55 case | IP55 (earbuds) |
What's in the Box
| Specification | CMF Ear (R) B171 2024 | OnePlus Buds 4 |
|---|---|---|
| Headphones / Earbuds | Ear (2024) (B171) earbuds | Buds 4 earbuds |
| Charging Case | Charging case | Charging case |
| Charging Cable | USB-C charging cable | USB-C charging cable |
| Audio Cable | N/A - true wireless design | N/A - true wireless design |
| Ear Tips / Accessories | Ear tips/accessories supplied for the product design | Ear tips/accessories supplied for the product design |
| Documentation | Quick start and safety documentation | Quick start and safety documentation |