Detailed comparison and review of Erato Apollo 7S 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 | Erato Apollo 7S | OPPO Enco W51 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Width | 1.54 cm | - | |
| Depth | 2.22 cm | - | |
| Weight | 4 g | 55.5 g | Erato Apollo 7S are lighter than Erato Apollo 7S headphones. |
| Dimensions & Weight Details | Charging case: 6.25 cm x 4 cm x 2.55 cm / 52 g | - | |
| Colour | Black | Space grey | Rose gold | Silver | White floral | Starry blue | |
| Protection | Weatherproof, sweat-resistant, IPX5 | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Erato Apollo 7S | OPPO Enco W51 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | OPPO Enco W51 have a more advanced version of Bluetooth than Erato Apollo 7S. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), 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 | |
| Sound Effects | 3D Surround Sound | - | |
| 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 Erato Apollo 7S. |
| Impedance | 16 Ohm | - | |
| Diaphragm | 5.8 mm | 7 mm | OPPO Enco W51 have a thicker diaphragm than Erato Apollo 7S. |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | Erato Apollo 7S | OPPO Enco W51 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Sensitivity | -42 dB | -38 dBV/Pascal |
| REMOTE CONTROL | Erato Apollo 7S | OPPO Enco W51 |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Erato Apollo 7S | OPPO Enco W51 |
|---|
| Cable Type | USB charge cable | - |
|---|
| BATTERY AND CHARGING | Erato Apollo 7S | OPPO Enco W51 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 4 hours | 4 hour(s) | Both headphones last the same amount of time on a single charge. |
| Battery Life Details | Continuous talk: up to 4 hours Continuous playback: up to 3 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 |
|
| Included Qty | - | 2 |
| OTHERS | Erato Apollo 7S | OPPO Enco W51 |
|---|
| Included Accessories | 3 pairs of Comply foam ear tips, charging case, 3 pairs of ear stabilisers (small, medium, large) | Charging case (480 mAh) |
|---|
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