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