Side by side comparison and review of Monster iSport Achieve 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 | Monster iSport Achieve | OPPO Enco W51 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 55.5 g | |
| Colour | Green | Blue | Black | White floral | Starry blue | |
| Protection | Sweat-resistant | Dust-resistant, IP54, water-resistant | |
| Design | Sports | - | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Monster iSport Achieve | OPPO Enco W51 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Active Noise Cancelling | - | Yes | OPPO Enco W51 are equipped with active noice cancellation. |
| Noise Isolating | Yes | - | Monster iSport Achieve are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 20 - 20000 Hz | |
| Sensitivity | - | 103 dB | |
| Diaphragm | - | 7 mm | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Monster iSport Achieve | OPPO Enco W51 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Mono | - | |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Monster iSport Achieve | OPPO Enco W51 |
|---|
| Controls | Answer/end | - |
|---|
| CABLE | Monster iSport Achieve | OPPO Enco W51 |
|---|
| Cable Type | Headphones cable - anti tangle | - |
|---|
| BATTERY AND CHARGING | Monster iSport Achieve | OPPO Enco W51 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 5 hour(s) | 4 hour(s) | Monster iSport Achieve 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 | Monster iSport Achieve | OPPO Enco W51 |
|---|
| Included Accessories | Earhook, ear tips kit | Charging case (480 mAh) |
|---|
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