Detailed comparison and review of Sennheiser CX 400BT and OPPO Enco W11. 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 | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 4.4 g | |
| Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
Charging case: 35.5 g | |
| Colour | White | Black | White | |
| Protection | - | Dust-resistant, water-resistant, IP55 | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.0 | Sennheiser CX 400BT have a more advanced version of Bluetooth than OPPO Enco W11. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX | AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 21000 Hz | 20 - 20000 Hz | Sennheiser CX 400BT offer a larger frequency range than OPPO Enco W11. |
| Total Harmonic Distortion (THD) | 0.08% | - | |
| Sensitivity | - | 99 dB | |
| Max Sound Pressure | 107 dB | - | |
| Diaphragm | 7 mm | Composite - 8 mm | OPPO Enco W11 have a thicker diaphragm than Sennheiser CX 400BT. |
| MICROPHONE | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | Volume, answer/end, play/pause, next/previous track, skip track, voice assistant |
|---|
| CABLE | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | - |
|---|
| FEATURES | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Features | Voice alerts, touch control | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant | - | |
| Sensors | - | Touch sensor |
| BATTERY AND CHARGING | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 55 mAh | 40 mAh | Sennheiser CX 400BT have a higher battery capacity than OPPO Enco W11. |
| Battery Life | 7 hour(s) | 5 hour(s) | Sennheiser CX 400BT lasts longer on a single charge than the OPPO Enco W11. |
| Battery Life Details | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
Continuous playback (with included charging case): up to 20 hours Continuous playback: up to 5 hours |
|
| Charging Time | 1.5 hour(s) | - | |
| Included Qty | 2 | 2 |
| WIRELESS LINK | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Radio Transmitter Power | 10 mW | - |
|---|
| OTHERS | Sennheiser CX 400BT | OPPO Enco W11 |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | 3 pairs of ear tips, charging case (400 mAh) | |
|---|---|---|---|
| Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | - |
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