Side by side comparison and review of Sennheiser CX 350BT and Poly - Plantronics Backbeat Pro 5100 (Left Earbud). 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 | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 13 g | 5.8 g | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) are lighter than Sennheiser CX 350BT headphones. |
| Dimensions & Weight Details | - | Charging case with earphones: 38.6 g | |
| Colour | Black | White | Black | |
| Protection | - | Sweat-resistant, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| 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), Headset Profile (HSP), 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) | |
| Bluetooth Audio Codec | SBC, AAC, apt-X LL | - | |
| Active Noise Cancelling | - | Yes | Poly - Plantronics Backbeat Pro 5100 (Left 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) | 0.5% | <3% | Sennheiser CX 350BT have lower total harmonic distortion than Sennheiser CX 350BT. |
| Sensitivity | - | 94 dB | |
| Impedance | - | 16 Ohm | |
| Max Sound Pressure | 110 dB | - | |
| Diaphragm | - | 5.8 mm |
| MICROPHONE | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Mono | - | |
| Audio Input Details | Omni-directional | - |
| REMOTE CONTROL | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| Controls | Answer/end, play/pause, next/previous track | Mute, volume, answer/end, play/pause, skip track, voice assistant |
|---|
| CABLE | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| Cable Type | - | Micro-USB charge cable - detachable |
|---|
| FEATURES | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| Features | - | Voice alerts | |
|---|---|---|---|
| Additional Functions | - | DSP |
| BATTERY AND CHARGING | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 60 mAh | |
| Battery Life | 10 hour(s) | 6.5 hour(s) | Sennheiser CX 350BT lasts longer on a single charge than the Poly - Plantronics Backbeat Pro 5100 (Left Earbud). |
| Battery Life Details | Continuous playback: up to 10 hours Standby: up to 340 hours |
Continuous playback: up to 6.5 hours Continuous talk: up to 4 hours Continuous playback (with included charging case): up to 19 hours |
|
| Charging Time | - | 2 hour(s) |
| OTHERS | Sennheiser CX 350BT | Poly - Plantronics Backbeat Pro 5100 (Left Earbud) |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large) | 2 pairs of ear tips (small, large), charging case (440 mAh) | |
|---|---|---|---|
| Compliant Standards | - | IP54 | |
| Service & Support | Limited warranty - 2 years | - |
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