Side by side comparison and review of Amazon Echo Buds and OPPO Enco W31. 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 | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 50 g | |
| Dimensions & Weight Details | Charging case: 7.7 cm x 5.7 cm x 2.9 cm / 70 g Earbud: 2.2 cm x 2.3 cm x 2.4 cm / 7.6 g |
- | |
| Colour | - | Black | White | |
| Protection | Sweat-resistant, water-resistant | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Serial Port Profile (SPP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | - | AAC | |
| Active Noise Cancelling | Yes | - | Amazon Echo Buds are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Bose Active Noise Reduction | - | |
| Noise Isolating | Yes | - | Amazon Echo Buds are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 20 - 20000 Hz | |
| Sensitivity | - | 95 dB | |
| Diaphragm | - | Graphene - 7 mm |
| MICROPHONE | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Beamforming | - | |
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Controls | Mute, voice assistant | Next/previous track, voice assistant |
|---|
| CABLE | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Cable Type | Micro-USB charge cable | USB charge cable - detachable |
|---|
| FEATURES | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Internet of Things (IoT) Compatible | Yes | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant, Alexa | - | |
| Sensors | Accelerometer, proximity sensor, touch sensor | Touch sensor |
| BATTERY AND CHARGING | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 5 hour(s) | 3.5 hour(s) | Amazon Echo Buds lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | Continuous playback: up to 5 hours Continuous playback (with included charging case): up to 20 hours Continuous talk (with included charging case): up to 16 hours Continuous talk: up to 4 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 |
| CONNECTIONS | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Connector Type | USB (5 pin Micro-USB Type B) | - |
|---|
| OTHERS | Amazon Echo Buds | OPPO Enco W31 |
|---|
| Included Accessories | 3 pairs of ear tips (small, medium, large), 3 pairs of wing tips (small, medium, large) | Ear tips kit, USB charge cable, charging case (350 mAh) | |
|---|---|---|---|
| Compliant Standards | IPX4 | - | |
| Service & Support | Limited warranty - 1 year | - |
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