Side by side comparison and review of OPPO Enco W51 and Sennheiser CX Plus. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | OPPO Enco W51 | Sennheiser CX Plus |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 55.5 g | - | |
| Dimensions & Weight Details | - | Earbud: 5.9 cm x 3.38 cm x 4.23 cm / 6 g Charging case: 35 g |
|
| Colour | White floral | Starry blue | White | Black | |
| Protection | Dust-resistant, IP54, water-resistant | Splashproof, IPX4 | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | OPPO Enco W51 | Sennheiser CX Plus |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.2 | Sennheiser CX Plus have a more advanced version of Bluetooth than OPPO Enco W51. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX Adaptive | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Bass Boost | |
| Frequency Response | 20 - 20000 Hz | 5 - 21000 Hz | Sennheiser CX Plus offer a larger frequency range than OPPO Enco W51. |
| Sensitivity | 103 dB | - | |
| Diaphragm | 7 mm | 7 mm | Both headphones are designed with same thick diaphragm. |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 1 | |
| Features | - | TrueResponse technology |
| MICROPHONE | OPPO Enco W51 | Sennheiser CX Plus |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -38 dBV/Pascal | - | |
| Microphones Included | - | 4 |
| CABLE | OPPO Enco W51 | Sennheiser CX Plus |
|---|
| Cable Type | - | USB-C charge cable - detachable |
|---|
| FEATURES | OPPO Enco W51 | Sennheiser CX Plus |
|---|
| Features | - | Touch control | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | OPPO Enco W51 | Sennheiser CX Plus |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 25 mAh | 55 mAh | Sennheiser CX Plus have a higher battery capacity than OPPO Enco W51. |
| Battery Life | 4 hour(s) | - | |
| Battery Life Details | 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 |
Continuous playback (with included charging case): up to 24 hours | |
| Charging Time | - | 1.5 hour(s) | |
| Included Qty | 2 | 2 |
| OTHERS | OPPO Enco W51 | Sennheiser CX Plus |
|---|
| Included Accessories | Charging case (480 mAh) | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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