Side by side comparison and review of Erato Apollo 7 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 | Erato Apollo 7 | OPPO Enco W51 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Width | 1.54 cm | - | |
| Depth | 2.22 cm | - | |
| Weight | 4 g | 55.5 g | Erato Apollo 7 are lighter than Erato Apollo 7 headphones. |
| Dimensions & Weight Details | Charging case: 6.25 cm x 4 cm x 2.55 cm / 52 g | - | |
| Colour | Luscious gold | White floral | Starry blue | |
| Protection | Waterproof | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 9.1 m | 10 m | OPPO Enco W51 have a greater operating distance than Erato Apollo 7. |
| SOUND QUALITY | Erato Apollo 7 | 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 7. |
| 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 | |
| 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 7. |
| Impedance | 16 Ohm | - | |
| Diaphragm | 5.8 mm | 7 mm | OPPO Enco W51 have a thicker diaphragm than Erato Apollo 7. |
| MICROPHONE | Erato Apollo 7 | OPPO Enco W51 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Audio Input Details | Omni-directional | - | |
| Sensitivity | -42 dB | -38 dBV/Pascal |
| REMOTE CONTROL | Erato Apollo 7 | OPPO Enco W51 |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Erato Apollo 7 | OPPO Enco W51 |
|---|
| Cable Type | USB charge cable | - |
|---|
| BATTERY AND CHARGING | Erato Apollo 7 | 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 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 7 | 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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