In depth comparison and review of Poly - Plantronics Backbeat FIT 505 and Sennheiser HD 458BT. 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 FIT 505 | Sennheiser HD 458BT |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 6.726 cm | - | |
| Width | 14.877 cm | - | |
| Depth | 17.155 cm | - | |
| Weight | 155 g | 238 g | Poly - Plantronics Backbeat FIT 505 are lighter than Poly - Plantronics Backbeat FIT 505 headphones. |
| Colour | Black | Black | |
| Earpad Material | Memory foam | - | |
| Headband Material | Memory foam | - | |
| Protection | Moisture-resistant, sweat-resistant | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 458BT |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sennheiser HD 458BT can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | Sennheiser HD 458BT have a more advanced version of Bluetooth than Poly - Plantronics Backbeat FIT 505. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, apt-X LL | |
| Active Noise Cancelling | - | Yes | Sennheiser HD 458BT are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 50 - 20000 Hz | 18 - 22000 Hz | Sennheiser HD 458BT offer a larger frequency range than Poly - Plantronics Backbeat FIT 505. |
| Total Harmonic Distortion (THD) | <3% | <0.3% | Sennheiser HD 458BT have lower total harmonic distortion than Poly - Plantronics Backbeat FIT 505. |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 40 mm | - | |
| Features | - | Voice control |
| MICROPHONE | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 458BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | - | 80 - 6000 Hz |
| REMOTE CONTROL | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 458BT |
|---|
| Controls | Answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 458BT |
|---|
| Cable Type | Micro-USB charge cable Audio cable |
Audio cable - detachable USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 458BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 600 mAh | |
| Battery Life | 18 hour(s) | 30 hours | Sennheiser HD 458BT lasts longer on a single charge than the Poly - Plantronics Backbeat FIT 505. |
| Standby Time | 480 hours | - | |
| Charging Time | 1.5 hour(s) | 2 hours | Poly - Plantronics Backbeat FIT 505 recharge faster than Poly - Plantronics Backbeat FIT 505. |
| WIRELESS LINK | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 458BT |
|---|
| Transmission Range | 10 m | - |
|---|
| OTHERS | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 458BT |
|---|
| Included Accessories | - | Carrying case |
|---|
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