Detailed comparison and review of JBL Free II 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 | JBL Free II | OPPO Enco W31 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 4.8 g | 50 g | JBL Free II are lighter than JBL Free II headphones. |
| Dimensions & Weight Details | Earphone: 4.8 g Charging case: 52 g |
- | |
| Colour | Black | White | Black | White | |
| Protection | Splashproof, IPX4 | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | JBL Free II | 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 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | - | AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 100 dB | 95 dB | JBL Free II have higher sensitivity than OPPO Enco W31. |
| Impedance | 16 Ohm | - | |
| Max Sound Pressure | 95 dB | - | |
| Diaphragm | 5.6 mm | Graphene - 7 mm | OPPO Enco W31 have a thicker diaphragm than JBL Free II. |
| MICROPHONE | JBL Free II | OPPO Enco W31 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Sensitivity | -38 dBV/Pascal | -38 dBV/Pascal |
| REMOTE CONTROL | JBL Free II | OPPO Enco W31 |
|---|
| Controls | - | Next/previous track, voice assistant |
|---|
| CABLE | JBL Free II | OPPO Enco W31 |
|---|
| Cable Type | USB-C charge cable | USB charge cable - detachable |
|---|
| FEATURES | JBL Free II | OPPO Enco W31 |
|---|
| Features | Touch control | - | |
|---|---|---|---|
| Sensors | - | Touch sensor |
| BATTERY AND CHARGING | JBL Free II | OPPO Enco W31 |
|---|
| Battery Type | 2 x headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 55 mAh | 25 mAh | JBL Free II have a higher battery capacity than OPPO Enco W31. |
| Battery Life | 6 hour(s) | 3.5 hour(s) | JBL Free II lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | (with included charging case): up to 24 hours | Continuous playback (with included charging case): up to 15 hours Continuous playback: up to 3.5 hours |
|
| Charging Time | 2 hour(s) | 2.5 hour(s) | JBL Free II recharge faster than JBL Free II. |
| Included Qty | 2 | 2 |
| OTHERS | JBL Free II | OPPO Enco W31 |
|---|
| Included Accessories | 3 pairs of ear tips (small, medium, large), charging case (650 mAh) | Ear tips kit, USB charge cable, charging case (350 mAh) |
|---|
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