OnePlus Buds Pro 3 vs CMF Ear (3) B173
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  OnePlus Buds Pro 3 |  CMF Ear (3) B173 |
|---|---|---|
| Price | KSh 22,000 | KSh 21,500.00 |
| Drivers | 11mm woofer + 6mm tweeter | 12mm dynamic driver |
| Connection | Bluetooth | Bluetooth |
| Active Noise Cancellation | Adaptive ANC up to 50dB | Up to 45dB ANC |
| Battery Life | 10 hours / 43 hours with case (ANC off); 6 hours / 25.5 hours with case (ANC on) | Up to 5.5 hours with ANC; up to 38 hours total with charging case (ANC off) |
| Water & Dust Resistance | IP55 earbuds | IP54 earbuds |
| Weight | 5.29g per earbud; 50.62g case | — |
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Full specifications
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General
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Brand | OnePlus | — |
| Model | Buds Pro 3 | Ear (3) (B173) |
| Announced | 2024 | 2025 |
| Type | True Wireless In-Ear Earbuds | True Wireless In-Ear Earbuds |
| Color | Midnight Opus, Lunar Radiance, Sapphire Blue | White, Black |
Design
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Weight | 5.29g per earbud; 50.62g case | — |
| Dimensions | Earbud 33.6 x 21.15 x 25mm; case 64.7 x 52.45 x 25.75mm | — |
Battery & Charging
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Battery Life | 10 hours / 43 hours with case (ANC off); 6 hours / 25.5 hours with case (ANC on) | Up to 5.5 hours with ANC; up to 38 hours total with charging case (ANC off) |
| Charging Time | 70 minutes wired; 2.5 hours wireless | — |
| Fast Charging | 10 minutes provides up to 13 hours total | — |
| Charging Port | USB-C (case) | USB-C (case) |
| Wireless Charging | Yes (case) | Yes (case) |
Connectivity
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Connection | Bluetooth | Bluetooth |
| Bluetooth | Bluetooth 5.4 | Bluetooth 5.4 |
| Bluetooth Range | 10m | — |
| Multipoint Connection | Yes | — |
| App Support | HeyMelody app | Nothing X |
Features
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Special Features | Dynaudio tuning; Hi-Res LHDC; dual-device connection | Super Mic in charging case; Hi-Res Wireless Audio |
Audio
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Drivers | 11mm woofer + 6mm tweeter | 12mm dynamic driver |
| Frequency Response | 10Hz-40kHz | — |
| Impedance | 18 ohms woofer; 9 ohms tweeter | — |
| Audio Codecs | LHDC 5.0, AAC, SBC | — |
| Active Noise Cancellation | Adaptive ANC up to 50dB | Up to 45dB ANC |
| Transparency / Ambient Mode | Yes | — |
| Spatial Audio | Spatial Audio with head tracking | — |
| Microphones | 3 microphones plus voice-pickup bone sensor per earbud | Breakthrough Super Mic technology |
| Audio Features | — | 24-bit Hi-Res Audio with LDAC |
Charging Case
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| 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 Dimensions | 64.7 x 52.45 x 25.75mm | — |
| Case Weight | 50.62g | — |
| Case Features | Protective charging case | Protective charging case |
Design & Controls
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Controls | Touch controls for playback, calls and listening modes | Touch controls for playback, calls and listening modes |
| Water & Dust Resistance | IP55 earbuds | IP54 earbuds |
What's in the Box
| Specification | OnePlus Buds Pro 3 | CMF Ear (3) B173 |
|---|---|---|
| Headphones / Earbuds | Buds Pro 3 earbuds | Ear (3) (B173) 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 |