Detailed comparison and review of SOUL RUN FREE PRO HD and OPPO Enco W51. 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 | SOUL RUN FREE PRO HD | OPPO Enco W51 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 1.7 cm | - | |
| Width | 1.9 cm | - | |
| Depth | 3.2 cm | - | |
| Weight | 15 g | 55.5 g | SOUL RUN FREE PRO HD are lighter than SOUL RUN FREE PRO HD headphones. |
| Colour | Blue | White floral | Starry blue | |
| Earpad Material | Memory foam | - | |
| Protection | Waterproof, sweat-resistant | Dust-resistant, IP54, water-resistant | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10.1 m | 10 m | SOUL RUN FREE PRO HD have a greater operating distance than OPPO Enco W51. |
| SOUND QUALITY | SOUL RUN FREE PRO HD | OPPO Enco W51 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Balanced armature | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 EDR | Bluetooth 5.0 | OPPO Enco W51 have a more advanced version of Bluetooth than SOUL RUN FREE PRO HD. |
| 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 | - | 103 dB | |
| Diaphragm | - | 7 mm | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | SOUL RUN FREE PRO HD | OPPO Enco W51 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | SOUL RUN FREE PRO HD | OPPO Enco W51 |
|---|
| Controls | Volume control | - |
|---|
| CABLE | SOUL RUN FREE PRO HD | OPPO Enco W51 |
|---|
| Cable Type | USB charge cable - detachable Headphones cable - reflective |
- |
|---|
| BATTERY AND CHARGING | SOUL RUN FREE PRO HD | OPPO Enco W51 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 12 hour(s) | 4 hour(s) | SOUL RUN FREE PRO HD lasts longer on a single charge than the OPPO Enco W51. |
| Battery Life Details | - | 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 |
|
| Included Qty | - | 2 |
| OTHERS | SOUL RUN FREE PRO HD | OPPO Enco W51 |
|---|
| Included Accessories | Carrying case, cable clip, 2 pairs of foam ear tips, 4 pairs of ear tips (XS, small, medium, large), 2 pairs of ear locks | Charging case (480 mAh) | |
|---|---|---|---|
| Service & Support | Limited warranty - 1 year | - |
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