In depth comparison and review of Erato RIO 3 and OPPO Enco W31. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Erato RIO 3 | OPPO Enco W31 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 4.6 cm | - | |
| Width | 5.1 cm | - | |
| Depth | 3.4 cm | - | |
| Weight | 14 g | 50 g | Erato RIO 3 are lighter than Erato RIO 3 headphones. |
| Colour | Yellow | Black | Turquoise | Green | Red | Silver | Black | White | |
| Protection | Sweat-resistant, IPX5, water-resistant | 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 RIO 3 | OPPO Enco W31 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | OPPO Enco W31 have a more advanced version of Bluetooth than Erato RIO 3. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX | 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 RIO 3 have higher sensitivity than OPPO Enco W31. |
| Impedance | 32 Ohm | - | |
| Diaphragm | 14.2 mm | Graphene - 7 mm | Erato RIO 3 have a thicker diaphragm than OPPO Enco W31. |
| MICROPHONE | Erato RIO 3 | 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. |
| Sensitivity | -38 dB | -38 dBV/Pascal |
| REMOTE CONTROL | Erato RIO 3 | OPPO Enco W31 |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode | Next/previous track, voice assistant |
|---|
| CABLE | Erato RIO 3 | OPPO Enco W31 |
|---|
| Cable Type | - | USB charge cable - detachable |
|---|
| FEATURES | Erato RIO 3 | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | Erato RIO 3 | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 130 mAh | 25 mAh | Erato RIO 3 have a higher battery capacity than OPPO Enco W31. |
| Battery Life | 8 hour(s) | 3.5 hour(s) | Erato RIO 3 lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
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 | 2 |
| OTHERS | Erato RIO 3 | OPPO Enco W31 |
|---|
| Included Accessories | - | Ear tips kit, USB charge cable, charging case (350 mAh) |
|---|
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
