Detailed comparison and review of Bowers & Wilkins PI7 and OPPO Enco W51. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 55.5 g | |
| Dimensions & Weight Details | Charging case: 50 g Earbud: 8 g |
- | |
| Colour | Charcoal | White | White floral | Starry blue | |
| Protection | IP54, water-resistant | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m | |
| High-Resolution Audio | Yes | - |
| SOUND QUALITY | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Balanced armature / dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Generic Attribute Profile (GATT) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX, aptX HD, apt-X LL, aptX Adaptive | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Cancelling | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 10 - 20000 Hz | 20 - 20000 Hz | Bowers & Wilkins PI7 offer a larger frequency range than OPPO Enco W51. |
| Total Harmonic Distortion (THD) | <0.3% | - | |
| Sensitivity | - | 103 dB | |
| Diaphragm | 9.2 mm | 7 mm | Bowers & Wilkins PI7 have a thicker diaphragm than OPPO Enco W51. |
| Features | Dual driver, Google Fast Pair, Auto Play, Auto Pause, Ambient Pass-Through | - |
| MICROPHONE | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | - | -38 dBV/Pascal | |
| Microphones Included | 6 | - |
| REMOTE CONTROL | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Controls | Answer/end, play/pause, next/previous track, reject call, voice assistant, ANC on/off, ANC mode | - |
|---|
| CABLE | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Cable Type | USB-C charge cable - detachable - 20 cm USB-C to mini-phone 3.5 mm cable - detachable |
- |
|---|
| FEATURES | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Features | Fast charge, auto power on/off | - | |
|---|---|---|---|
| Sensors | Wear sensor | - |
| BATTERY AND CHARGING | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Battery Type | Headphone battery rechargeable - wireless charging | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 4 hour(s) | 4 hour(s) | Both headphones last the same amount of time on a single charge. |
| Battery Life Details | Continuous playback (with included charging case): up to 20 hours Continuous playback: up to 4 hours |
Continuous playback (noise cancelling OFF / cable connection): up to 24 hours Continuous playback (noise cancelling ON / cable connection): up to 20 hours Continuous playback (noise cancelling OFF): up to 4 hours Continuous playback (noise cancelling ON): up to 3.5 hours |
|
| Wireless Charging Standards | Qi | - | |
| Charging Time | 3 hour(s) | - | |
| Included Qty | - | 2 |
| OTHERS | Bowers & Wilkins PI7 | OPPO Enco W51 |
|---|
| Included Accessories | 3 pairs of ear tips (small, medium, large), USB-C charging cable, wireless charging case, 3.5 mm to USB-C cable | Charging case (480 mAh) | |
|---|---|---|---|
| Compatibility | iPhone, iPad, Android phone, Android tablet | - | |
| Service & Support | Limited warranty - 2 years | - |
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