Side by side comparison and review of Audio-Technica ATH CKR55BT 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 | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 17 g | 50 g | Audio-Technica ATH CKR55BT are lighter than Audio-Technica ATH CKR55BT headphones. |
| Colour | Steel black | Black | White | |
| Protection | - | Dust-resistant, IP54, water-resistant | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | 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 Audio-Technica ATH CKR55BT. |
| 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 | 103 dB/mW | 95 dB | Audio-Technica ATH CKR55BT have higher sensitivity than OPPO Enco W31. |
| Impedance | 16 Ohm | - | |
| Diaphragm | 10.7 mm | Graphene - 7 mm | Audio-Technica ATH CKR55BT have a thicker diaphragm than OPPO Enco W31. |
| MICROPHONE | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Audio Input Details | Omni-directional - 100 - 10000 Hz | - | |
| Sensitivity | -44 dB | -38 dBV/Pascal |
| REMOTE CONTROL | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Controls | - | Next/previous track, voice assistant |
|---|
| CABLE | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Cable Type | Micro-USB charge cable - detachable - 30 cm | USB charge cable - detachable |
|---|
| FEATURES | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Sensors | - | Touch sensor |
|---|
| BATTERY AND CHARGING | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Battery Type | 1 x headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 25 mAh | |
| Battery Life | 7 hour(s) | 3.5 hour(s) | Audio-Technica ATH CKR55BT 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 |
|
| Standby Time | 200 hours | - | |
| Charging Time | 3 hour(s) | 2.5 hour(s) | OPPO Enco W31 recharge faster than Audio-Technica ATH CKR55BT. |
| Included Qty | 1 | 2 |
| WIRELESS LINK | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Modulation Type | FHSS | - | |
|---|---|---|---|
| Radio Frequency Range | 2.402 - 2.480GHz | - |
| OTHERS | Audio-Technica ATH CKR55BT | OPPO Enco W31 |
|---|
| Included Accessories | Clip, pouch case, 4 pairs of ear tips (XS, S,M, L) | Ear tips kit, USB charge cable, charging case (350 mAh) |
|---|
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