In depth comparison and review of Poly - Plantronics Backbeat Pro 5100 (Right Earbud) and JBL Free II. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 5.8 g | 4.8 g | JBL Free II are lighter than Poly - Plantronics Backbeat Pro 5100 (Right Earbud) headphones. |
| Dimensions & Weight Details | Charging case with earphones: 38.6 g | Earphone: 4.8 g Charging case: 52 g |
|
| Colour | Black | Black | White | |
| Protection | Sweat-resistant, water-resistant | Splashproof, IPX4 | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| 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), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | Yes | - | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | WindSmart technology | - | |
| 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 | 94 dB | 100 dB | JBL Free II have higher sensitivity than Poly - Plantronics Backbeat Pro 5100 (Right Earbud). |
| Impedance | 16 Ohm | 16 Ohm | |
| Max Sound Pressure | - | 95 dB | |
| Diaphragm | 5.8 mm | 5.6 mm | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) have a thicker diaphragm than JBL Free II. |
| MICROPHONE | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| Controls | Mute, volume, answer/end, play/pause, skip track, voice assistant | - |
|---|
| CABLE | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| Cable Type | Micro-USB charge cable - detachable | USB-C charge cable |
|---|
| FEATURES | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| Features | Voice alerts | Touch control | |
|---|---|---|---|
| Additional Functions | DSP | - |
| BATTERY AND CHARGING | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | 2 x headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 60 mAh | 55 mAh | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) have a higher battery capacity than JBL Free II. |
| Battery Life | 6.5 hour(s) | 6 hour(s) | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) lasts longer on a single charge than the JBL Free II. |
| Battery Life Details | Continuous playback: up to 6.5 hours Continuous talk: up to 4 hours Continuous playback (with included charging case): up to 19 hours |
(with included charging case): up to 24 hours | |
| Charging Time | 2 hour(s) | 2 hour(s) | The charging of both headphones last the same time. |
| Included Qty | - | 2 |
| OTHERS | Poly - Plantronics Backbeat Pro 5100 (Right Earbud) | JBL Free II |
|---|
| Included Accessories | 2 pairs of ear tips (small, large), charging case (440 mAh) | 3 pairs of ear tips (small, medium, large), charging case (650 mAh) | |
|---|---|---|---|
| Compliant Standards | IP54 | - |
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