Side by side comparison and review of JBL Free II and OPPO Enco W51. 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 II | OPPO Enco W51 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 4.8 g | 55.5 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 | White floral | Starry blue | |
| 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 W51 |
|---|
| 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) | - | |
| Active Noise Cancelling | - | Yes | OPPO Enco W51 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 100 dB | 103 dB | OPPO Enco W51 have higher sensitivity than JBL Free II. |
| Impedance | 16 Ohm | - | |
| Max Sound Pressure | 95 dB | - | |
| Diaphragm | 5.6 mm | 7 mm | OPPO Enco W51 have a thicker diaphragm than JBL Free II. |
| MICROPHONE | JBL Free II | OPPO Enco W51 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | -38 dBV/Pascal | -38 dBV/Pascal |
| CABLE | JBL Free II | OPPO Enco W51 |
|---|
| Cable Type | USB-C charge cable | - |
|---|
| FEATURES | JBL Free II | OPPO Enco W51 |
|---|
| Features | Touch control | - |
|---|
| BATTERY AND CHARGING | JBL Free II | OPPO Enco W51 |
|---|
| 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 W51. |
| Battery Life | 6 hour(s) | 4 hour(s) | JBL Free II lasts longer on a single charge than the OPPO Enco W51. |
| Battery Life Details | (with included charging case): up to 24 hours | Continuous playback (noise cancelling OFF / cable connection): up to 24 hours Continuous playback (noise cancelling ON / cable connection): up to 20 hours Continuous playback (noise cancelling OFF): up to 4 hours Continuous playback (noise cancelling ON): up to 3.5 hours |
|
| Charging Time | 2 hour(s) | - | |
| Included Qty | 2 | 2 |
| OTHERS | JBL Free II | OPPO Enco W51 |
|---|
| Included Accessories | 3 pairs of ear tips (small, medium, large), charging case (650 mAh) | Charging case (480 mAh) |
|---|
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