Side by side comparison and review of Poly - Plantronics Backbeat FIT 305 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 | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
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Weight | 14 g | 50 g | Poly - Plantronics Backbeat FIT 305 are lighter than Poly - Plantronics Backbeat FIT 305 headphones. |
Colour | Black | Dark blue | Coral | Lime green | Black | White | |
Protection | Sweat-resistant | Dust-resistant, IP54, water-resistant | |
Design | Sports | - | |
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 | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Headphones Form Factor | In-ear | In-ear | |
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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 Poly - Plantronics Backbeat FIT 305. |
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. |
Total Harmonic Distortion (THD) | <3% | - | |
Sensitivity | 106 dB | 95 dB | Poly - Plantronics Backbeat FIT 305 have higher sensitivity than OPPO Enco W31. |
Impedance | 16 Ohm | - | |
Diaphragm | 6 mm | Graphene - 7 mm | OPPO Enco W31 have a thicker diaphragm than Poly - Plantronics Backbeat FIT 305. |
MICROPHONE | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Form Factor | - | Built-in | |
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Type | On-cable | - | |
Noise Cancelling | - | Yes | OPPO Enco W31 microphone can cancel out ambient noise. |
Sensitivity | - | -38 dBV/Pascal |
REMOTE CONTROL | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Controls | Answer/end, play/pause, next/previous track | Next/previous track, voice assistant |
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CABLE | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Cable Type | Micro-USB charge cable | USB charge cable - detachable |
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FEATURES | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Sensors | - | Touch sensor |
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BATTERY AND CHARGING | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
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Battery Capacity | - | 25 mAh | |
Battery Life | 6 hour(s) | 3.5 hour(s) | Poly - Plantronics Backbeat FIT 305 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 |
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Standby Time | 240 hours | - | |
Charging Time | 2 hour(s) | 2.5 hour(s) | Poly - Plantronics Backbeat FIT 305 recharge faster than Poly - Plantronics Backbeat FIT 305. |
Included Qty | - | 2 |
OTHERS | Poly - Plantronics Backbeat FIT 305 | OPPO Enco W31 |
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Included Accessories | Carrying pouch, 3 pairs of ear tips (small, medium, large) | Ear tips kit, USB charge cable, charging case (350 mAh) |
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