In depth comparison and review of Poly - Plantronics Backbeat FIT 505 and EPOS I SENNHEISER ADAPT 261. 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 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Height | 6.726 cm | - | |
| Width | 14.877 cm | - | |
| Depth | 17.155 cm | - | |
| Weight | 155 g | 120.7 g | EPOS I SENNHEISER ADAPT 261 are lighter than Poly - Plantronics Backbeat FIT 505 headphones. |
| Colour | Black | Black | |
| Earpad Material | Memory foam | Leatherette | |
| Headband Material | Memory foam | - | |
| Protection | Moisture-resistant, sweat-resistant | - | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 50 - 20000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER ADAPT 261 offer a larger frequency range than Poly - Plantronics Backbeat FIT 505. |
| Total Harmonic Distortion (THD) | <3% | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 118 dB | |
| Diaphragm | 40 mm | - | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Form Factor | Built-in | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Frequency Response | - | 100 - 8000 Hz |
| REMOTE CONTROL | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
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| Controls | Answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Cable Type | Micro-USB charge cable Audio cable |
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| FEATURES | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | 18 hour(s) | 27 hour(s) | EPOS I SENNHEISER ADAPT 261 lasts longer on a single charge than the Poly - Plantronics Backbeat FIT 505. |
| Standby Time | 480 hours | - | |
| Charging Time | 1.5 hour(s) | - |
| WIRELESS LINK | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Transmission Range | 10 m | - |
|---|
| OTHERS | Poly - Plantronics Backbeat FIT 505 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Included Accessories | - | USB-C adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams, Optimised for UC | |
| Service & Support | - | Limited warranty - 2 years |
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