In depth comparison and review of Poly - Plantronics Backbeat FIT 505 and Sennheiser HD 250BT. 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 250BT |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 6.726 cm | - | |
| Width | 14.877 cm | - | |
| Depth | 17.155 cm | - | |
| Weight | 155 g | 125 g | Sennheiser HD 250BT are lighter than Poly - Plantronics Backbeat FIT 505 headphones. |
| Colour | 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 250BT |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | Sennheiser HD 250BT 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 | |
| Noise Isolating | - | Yes | Sennheiser HD 250BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 50 - 20000 Hz | 20 - 22000 Hz | Sennheiser HD 250BT offer a larger frequency range than Poly - Plantronics Backbeat FIT 505. |
| Total Harmonic Distortion (THD) | <3% | <0.3% | Sennheiser HD 250BT have lower total harmonic distortion than Poly - Plantronics Backbeat FIT 505. |
| Sensitivity | - | 110 dB | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 40 mm | 32 mm | Poly - Plantronics Backbeat FIT 505 have a thicker diaphragm than Sennheiser HD 250BT. |
| Features | - | Audio prompts |
| MICROPHONE | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 250BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz |
| REMOTE CONTROL | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 250BT |
|---|
| Controls | Answer/end, play/pause, next/previous track | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call |
|---|
| CABLE | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 250BT |
|---|
| Cable Type | Micro-USB charge cable Audio cable |
USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 250BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 190 mAh | |
| Battery Life | 18 hour(s) | 25 hour(s) | Sennheiser HD 250BT lasts longer on a single charge than the Poly - Plantronics Backbeat FIT 505. |
| Standby Time | 480 hours | - | |
| Charging Time | 1.5 hour(s) | 3 hour(s) | Poly - Plantronics Backbeat FIT 505 recharge faster than Poly - Plantronics Backbeat FIT 505. |
| WIRELESS LINK | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 250BT |
|---|
| Transmission Range | 10 m | - |
|---|
| OTHERS | Poly - Plantronics Backbeat FIT 505 | Sennheiser HD 250BT |
|---|
| Included Accessories | - | USB-C charging cable | |
|---|---|---|---|
| Compatibility | - | iPhone, Android phone | |
| Compliant Standards | - | Bluetooth Class 1 |
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