Detailed comparison and review of Sennheiser MOMENTUM Free and OPPO Enco W31. 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 MOMENTUM Free | OPPO Enco W31 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 40 g | 50 g | Sennheiser MOMENTUM Free are lighter than Sennheiser MOMENTUM Free headphones. |
| Colour | Black, red | Black | White | |
| Earpad Material | Stainless steel | - | |
| Protection | - | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Sennheiser MOMENTUM Free | OPPO Enco W31 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | OPPO Enco W31 have a more advanced version of Bluetooth than Sennheiser MOMENTUM Free. |
| 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, apt-X LL | AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 15 - 22000 Hz | 20 - 20000 Hz | Sennheiser MOMENTUM Free offer a larger frequency range than OPPO Enco W31. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 95 dB | Sennheiser MOMENTUM Free have higher sensitivity than OPPO Enco W31. |
| Impedance | 28 Ohm | - | |
| Max Sound Pressure | 112 dB | - | |
| Diaphragm | - | Graphene - 7 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | 2 | - | Sennheiser MOMENTUM Free have the ability to connect to multiple devices simultaneously. |
| Features | Voice control | - |
| MICROPHONE | Sennheiser MOMENTUM Free | OPPO Enco W31 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Sensitivity | -44 dBV/Pascal | -38 dBV/Pascal |
| REMOTE CONTROL | Sennheiser MOMENTUM Free | OPPO Enco W31 |
|---|
| Controls | Volume, answer/end, next/previous track, reject call | Next/previous track, voice assistant |
|---|
| CABLE | Sennheiser MOMENTUM Free | OPPO Enco W31 |
|---|
| Cable Type | USB charge cable - detachable | USB charge cable - detachable |
|---|
| FEATURES | Sennheiser MOMENTUM Free | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | Sennheiser MOMENTUM Free | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 86 mAh | 25 mAh | Sennheiser MOMENTUM Free have a higher battery capacity than OPPO Enco W31. |
| Battery Life | 6 hour(s) | 3.5 hour(s) | Sennheiser MOMENTUM Free lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | - | Continuous playback (with included charging case): up to 15 hours Continuous playback: up to 3.5 hours |
|
| Charging Time | 1.5 hour(s) | 2.5 hour(s) | Sennheiser MOMENTUM Free recharge faster than Sennheiser MOMENTUM Free. |
| Included Qty | - | 2 |
| OTHERS | Sennheiser MOMENTUM Free | OPPO Enco W31 |
|---|
| Included Accessories | Carrying case, 4 pairs of ear tips (XS, S,M, L) | Ear tips kit, USB charge cable, charging case (350 mAh) |
|---|
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