In depth comparison and review of Bang & Olufsen Beoplay H9i 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 | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 20 cm | - | |
| Width | 19.5 cm | - | |
| Depth | 5.2 cm | - | |
| Weight | 285 g | 125 g | Sennheiser HD 250BT are lighter than Bang & Olufsen Beoplay H9i headphones. |
| Colour | Natural | Black | Pine | - | |
| Body Material | Fabric, rubber, anodised aluminium, polymer | - | |
| Earpad Material | Leather, memory foam | - | |
| Headband Material | Leather | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | Sennheiser HD 250BT have a more advanced version of Bluetooth than Bang & Olufsen Beoplay H9i. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | AAC | SBC, AAC, aptX, apt-X LL | |
| Active Noise Cancelling | Yes | - | Bang & Olufsen Beoplay H9i are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | - | |
| Noise Isolating | - | Yes | Sennheiser HD 250BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 22000 Hz | 20 - 22000 Hz | Both headphones offer the same frequency response. |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | 95 dB/mW | 110 dB | Sennheiser HD 250BT have higher sensitivity than Bang & Olufsen Beoplay H9i. |
| Impedance | 24 Ohm | - | |
| Diaphragm | 40 mm | 32 mm | Bang & Olufsen Beoplay H9i have a thicker diaphragm than Sennheiser HD 250BT. |
| Features | - | Audio prompts |
| MICROPHONE | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode, noise-cancellation suspend button, audio transparency | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call |
|---|
| CABLE | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Cable Type | Headphones cable - detachable - 1.2 m USB to USB-C cable - 1.25 m |
USB-C charge cable - detachable | |
|---|---|---|---|
| Cable Length | 1.2 m | - |
| FEATURES | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Sensors | Proximity sensor | - |
|---|
| BATTERY AND CHARGING | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 770 mAh | 190 mAh | Bang & Olufsen Beoplay H9i have a higher battery capacity than Sennheiser HD 250BT. |
| Battery Life | 24 hour(s) | 25 hour(s) | Sennheiser HD 250BT lasts longer on a single charge than the Bang & Olufsen Beoplay H9i. |
| 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) | 3 hour(s) | Bang & Olufsen Beoplay H9i recharge faster than Bang & Olufsen Beoplay H9i. |
| CONNECTIONS | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Bang & Olufsen Beoplay H9i | Sennheiser HD 250BT |
|---|
| Included Accessories | Carrying pouch, airplane adapter | USB-C charging cable | |
|---|---|---|---|
| Compatibility | - | iPhone, Android phone | |
| Compliant Standards | - | Bluetooth Class 1 | |
| Service & Support | Limited warranty - parts and labour - 2 years | - |
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