Side by side comparison and review of JBL Free and OPPO Enco W31. 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 | JBL Free | OPPO Enco W31 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 99 g | 50 g | OPPO Enco W31 are lighter than JBL Free headphones. |
| Colour | White | Black | Black | White | |
| Protection | - | Dust-resistant, IP54, water-resistant | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | JBL 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 JBL Free. |
| 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 | |
| Frequency Response | 10 - 22000 Hz | 20 - 20000 Hz | JBL Free offer a larger frequency range than OPPO Enco W31. |
| Sensitivity | - | 95 dB | |
| Diaphragm | 5.8 mm | Graphene - 7 mm | OPPO Enco W31 have a thicker diaphragm than JBL Free. |
| MICROPHONE | JBL Free | 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 |
| REMOTE CONTROL | JBL Free | OPPO Enco W31 |
|---|
| Controls | - | Next/previous track, voice assistant |
|---|
| CABLE | JBL Free | OPPO Enco W31 |
|---|
| Cable Type | Micro-USB charge cable | USB charge cable - detachable |
|---|
| FEATURES | JBL Free | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | JBL Free | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 4 hour(s) | 3.5 hour(s) | JBL 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 | 2 hour(s) | 2.5 hour(s) | JBL Free recharge faster than JBL Free. |
| Included Qty | - | 2 |
| OTHERS | JBL Free | OPPO Enco W31 |
|---|
| Included Accessories | 2 pairs of ear sleeves, charging case | Ear tips kit, USB charge cable, charging case (350 mAh) | |
|---|---|---|---|
| Service & Support | Limited warranty - 1 year | - |
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