Detailed comparison and review of Huawei FreeBuds 4 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 | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 50 g | |
| Dimensions & Weight Details | Charging case: 5.8 cm x 5.8 cm x 2.12 cm / 38 g Earbud: 1.68 cm x 1.85 cm x 4.14 cm / 4.1 g |
- | |
| Colour | Ceramic white | Silver frost | Black | White | |
| Protection | Splashproof, dust-resistant, water-resistant | Dust-resistant, IP54, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m | |
| High-Resolution Audio | Yes | - |
| SOUND QUALITY | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.2 | Bluetooth 5.0 | Huawei FreeBuds 4 have a more advanced version of Bluetooth than OPPO Enco W31. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC | AAC | |
| Active Noise Cancelling | Yes | - | Huawei FreeBuds 4 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 | - | 95 dB | |
| Diaphragm | 14.3 mm | Graphene - 7 mm | Huawei FreeBuds 4 have a thicker diaphragm than OPPO Enco W31. |
| MICROPHONE | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Noise Cancelling | Yes | Yes | The microphones on both headphones can cancel out ambient noise. |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Controls | Swipe control | Next/previous track, voice assistant |
|---|
| CABLE | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Cable Type | - | USB charge cable - detachable |
|---|
| FEATURES | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Sensors | Wear sensor | Touch sensor |
|---|
| BATTERY AND CHARGING | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 30 mAh | 25 mAh | Huawei FreeBuds 4 have a higher battery capacity than OPPO Enco W31. |
| Battery Life | 4 hour(s) | 3.5 hour(s) | Huawei FreeBuds 4 lasts longer on a single charge than the OPPO Enco W31. |
| Battery Life Details | Continuous playback (active noise-cancelling off): up to 4 hours Continuous playback (active noise-cancelling on): up to 2.7 hours Continuous playback (active noise-cancelling off) (with included charging case): up to 22 hours Continuous playback (active noise-cancelling on) (with included charging case): up to 14 hours Continuous talk (active noise-cancelling off): up to 2.3 hours Continuous talk (active noise-cancelling on): up to 2 hours |
Continuous playback (with included charging case): up to 15 hours Continuous playback: up to 3.5 hours |
|
| Charging Time | 1 hour(s) | 2.5 hour(s) | Huawei FreeBuds 4 recharge faster than Huawei FreeBuds 4. |
| Included Qty | - | 2 |
| OTHERS | Huawei FreeBuds 4 | OPPO Enco W31 |
|---|
| Included Accessories | USB-C charging cable, charging case (410 mAh) | Ear tips kit, USB charge cable, charging case (350 mAh) | |
|---|---|---|---|
| Compliant Standards | RoHS, halogen-free, IPX4 | - |
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