Detailed comparison and review of Bang & Olufsen Beoplay H9i and Poly Blackwire 3325. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | - | 3300 Series | |
| Height | 20 cm | 18.6 cm | |
| Width | 19.5 cm | 21.6 cm | |
| Depth | 5.2 cm | 5.6 cm | |
| Weight | 285 g | 130 g | Poly Blackwire 3325 are lighter than Bang & Olufsen Beoplay H9i headphones. |
| Colour | Natural | Black | Pine | - | |
| Body Material | Fabric, rubber, anodised aluminium, polymer | - | |
| Earpad Material | Leather, memory foam | Leatherette | |
| Headband Material | Leather | - | |
| Protection | - | Hearing protection | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Bluetooth Audio Codec | AAC | - | |
| Active Noise Cancelling | Yes | - | Bang & Olufsen Beoplay H9i are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 22000 Hz | 20 - 20000 Hz | Bang & Olufsen Beoplay H9i offer a larger frequency range than Poly Blackwire 3325. |
| Sensitivity | 95 dB/mW | 94 dB | Bang & Olufsen Beoplay H9i have higher sensitivity than Poly Blackwire 3325. |
| Impedance | 24 Ohm | 32 Ohm | |
| Diaphragm | 40 mm | 32 mm | Bang & Olufsen Beoplay H9i have a thicker diaphragm than Poly Blackwire 3325. |
| Features | - | SoundGuard Technology | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Noise Cancelling | - | Yes | Poly Blackwire 3325 microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -38 dB | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode, noise-cancellation suspend button, audio transparency | Mute, volume, answer/end |
|---|
| CABLE | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Cable Type | Headphones cable - detachable - 1.2 m USB to USB-C cable - 1.25 m |
Headset cable | |
|---|---|---|---|
| Cable Length | 1.2 m | - |
| FEATURES | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Sensors | Proximity sensor | - |
|---|
| BATTERY AND CHARGING | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Capacity | 770 mAh | - | |
| Battery Life | 24 hour(s) | - | |
| Battery Life Details | Continuous playback (noise cancelling ON / Bluetooth): up to 18 hours Continuous playback (noise cancelling OFF): up to 23 hours Continuous playback (noise cancelling ON / cable connection): up to 24 hours |
- | |
| Charging Time | 2.5 hour(s) | - |
| CONNECTIONS | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (4 PIN USB Type A) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | Bang & Olufsen Beoplay H9i | Poly Blackwire 3325 |
|---|
| Included Accessories | Carrying pouch, airplane adapter | Carrying pouch | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams | |
| Service & Support | Limited warranty - parts and labour - 2 years | Limited warranty - 2 years |
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