Detailed comparison and review of Erato Apollo 7 and OPPO Enco W31. 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 7 | OPPO Enco W31 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Width | 1.54 cm | - | |
| Depth | 2.22 cm | - | |
| Weight | 4 g | 50 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 | Black | White | |
| Protection | Waterproof | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 9.1 m | 10 m | OPPO Enco W31 have a greater operating distance than Erato Apollo 7. |
| SOUND QUALITY | Erato Apollo 7 | OPPO Enco W31 |
|---|
| 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 W31 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) | - | |
| Bluetooth Audio Codec | - | AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 100 dB | 95 dB | Erato Apollo 7 have higher sensitivity than OPPO Enco W31. |
| Impedance | 16 Ohm | - | |
| Diaphragm | 5.8 mm | Graphene - 7 mm | OPPO Enco W31 have a thicker diaphragm than Erato Apollo 7. |
| MICROPHONE | Erato Apollo 7 | OPPO Enco W31 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Audio Input Details | Omni-directional | - | |
| Sensitivity | -42 dB | -38 dBV/Pascal |
| REMOTE CONTROL | Erato Apollo 7 | OPPO Enco W31 |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track | Next/previous track, voice assistant |
|---|
| CABLE | Erato Apollo 7 | OPPO Enco W31 |
|---|
| Cable Type | USB charge cable | USB charge cable - detachable |
|---|
| FEATURES | Erato Apollo 7 | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | Erato Apollo 7 | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 4 hours | 3.5 hour(s) | Erato Apollo 7 lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | - | Continuous playback (with included charging case): up to 15 hours Continuous playback: up to 3.5 hours |
|
| Charging Time | - | 2.5 hour(s) | |
| Included Qty | - | 2 |
| OTHERS | Erato Apollo 7 | OPPO Enco W31 |
|---|
| Included Accessories | 3 pairs of Comply foam ear tips, charging case, 3 pairs of ear stabilisers (small, medium, large) | Ear tips kit, USB charge cable, charging case (350 mAh) |
|---|
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