Detailed comparison and review of Poly - Plantronics Backbeat FIT 3150 and KEF Mu3. 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 | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 26 g | - | |
| Dimensions & Weight Details | Earbud: 13 g Charging case: 89 g |
Earbud: 1.75 cm x 2.63 cm x 2.45 cm / 5.8 g Charging case: 6.2 cm x 5.2 cm x 3.35 cm / 46.8 g |
|
| Colour | Black, blue | Black | Silver grey | |
| Protection | Waterproof, sweat-resistant, IP57 | Splashproof | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 30 m | 10 m | Poly - Plantronics Backbeat FIT 3150 have a greater operating distance than KEF Mu3. |
| SOUND QUALITY | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Headphones Form Factor | In-ear - over-the-ear mount | In-ear | |
|---|---|---|---|
| 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), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | - | SBC, AAC | |
| Active Noise Cancelling | - | Yes | KEF Mu3 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | Bass Boost | - | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 5 mW | |
| Total Harmonic Distortion (THD) | <3% | - | |
| Sensitivity | 94 dB | 104 dB/mW | KEF Mu3 have higher sensitivity than Poly - Plantronics Backbeat FIT 3150. |
| Impedance | - | 16 Ohm | |
| Diaphragm | 13.5 mm | 8.2 mm | Poly - Plantronics Backbeat FIT 3150 have a thicker diaphragm than KEF Mu3. |
| MICROPHONE | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Form Factor | Built-in | Built-in |
|---|
| REMOTE CONTROL | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Controls | Mute, volume control, answer/end, play/pause, next/previous track, voice assistant | Multiple function button |
|---|
| CABLE | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Cable Type | Micro-USB charge cable - detachable | - |
|---|
| FEATURES | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Battery Type | 2 x headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 90 mAh | 50 mAh | Poly - Plantronics Backbeat FIT 3150 have a higher battery capacity than KEF Mu3. |
| Battery Life | 8 hour(s) | 9 hour(s) | KEF Mu3 lasts longer on a single charge than the Poly - Plantronics Backbeat FIT 3150. |
| Battery Life Details | Continuous playback: up to 8 hours Continuous playback (with included charging case): up to 24 hours |
Continuous playback (noise cancelling ON): up to 9 hours Continuous playback (with included charging case): up to 24 hours |
|
| Charging Time | 2 hour(s) | - | |
| Included Qty | 2 | 2 |
| OTHERS | Poly - Plantronics Backbeat FIT 3150 | KEF Mu3 |
|---|
| Included Accessories | USB charging cable, charging case (740 mAh) | 4 pairs of silicone ear tips, USB-C charging cable, charging case (350 mAh) | |
|---|---|---|---|
| Compliant Standards | - | IPX5 | |
| Service & Support | Limited warranty - parts and labour - 1 year | - |
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