Detailed comparison and review of Sennheiser MOMENTUM M2 IEBT 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 M2 IEBT | OPPO Enco W31 |
|---|
| Product Type | Earphones - Bluetooth - wireless - NFC | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 53 g | 50 g | OPPO Enco W31 are lighter than Sennheiser MOMENTUM M2 IEBT headphones. |
| Colour | Black | 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 M2 IEBT | 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 4.1 | Bluetooth 5.0 | OPPO Enco W31 have a more advanced version of Bluetooth than Sennheiser MOMENTUM M2 IEBT. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | - | AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 15 - 22000 Hz | 20 - 20000 Hz | Sennheiser MOMENTUM M2 IEBT offer a larger frequency range than OPPO Enco W31. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 112 dB | 95 dB | Sennheiser MOMENTUM M2 IEBT have higher sensitivity than OPPO Enco W31. |
| Impedance | 18 Ohm | - | |
| Diaphragm | - | Graphene - 7 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | 2 | - | Sennheiser MOMENTUM M2 IEBT have the ability to connect to multiple devices simultaneously. |
| Features | Voice guidance | - |
| MICROPHONE | Sennheiser MOMENTUM M2 IEBT | OPPO Enco W31 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -44 dBV/Pascal | -38 dBV/Pascal |
| REMOTE CONTROL | Sennheiser MOMENTUM M2 IEBT | OPPO Enco W31 |
|---|
| Controls | Power on/off, volume control, play/pause button, next/previous track | Next/previous track, voice assistant |
|---|
| CABLE | Sennheiser MOMENTUM M2 IEBT | OPPO Enco W31 |
|---|
| Cable Type | Micro-USB charge cable - detachable | USB charge cable - detachable |
|---|
| FEATURES | Sennheiser MOMENTUM M2 IEBT | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | Sennheiser MOMENTUM M2 IEBT | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 170 mAh | 25 mAh | Sennheiser MOMENTUM M2 IEBT have a higher battery capacity than OPPO Enco W31. |
| Battery Life | 10 hour(s) | 3.5 hour(s) | Sennheiser MOMENTUM M2 IEBT 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 M2 IEBT recharge faster than Sennheiser MOMENTUM M2 IEBT. |
| Included Qty | - | 2 |
| WIRELESS LINK | Sennheiser MOMENTUM M2 IEBT | OPPO Enco W31 |
|---|
| Transmission Range | 10 m | - |
|---|
| OTHERS | Sennheiser MOMENTUM M2 IEBT | OPPO Enco W31 |
|---|
| Included Accessories | Carrying case, 4 pairs of ear tips (supersmall, small, medium, large) | Ear tips kit, USB charge cable, charging case (350 mAh) |
|---|
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