In depth comparison and review of Sennheiser HD 450BT 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 | Sennheiser HD 450BT | Sennheiser HD 250BT |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 238 g | 125 g | Sennheiser HD 250BT are lighter than Sennheiser HD 450BT headphones. |
| Colour | Black | White | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Sennheiser HD 450BT | Sennheiser HD 250BT |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | - | Sennheiser HD 450BT can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
| 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 | SBC, AAC, aptX, apt-X LL | |
| Active Noise Cancelling | Yes | - | Sennheiser HD 450BT are equipped with active noice cancellation. |
| Noise Isolating | - | Yes | Sennheiser HD 250BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 20 - 22000 Hz | Sennheiser HD 450BT offer a larger frequency range than Sennheiser HD 250BT. |
| Total Harmonic Distortion (THD) | <0.3% | <0.3% | Both headphones have the same total harmonic distortion. |
| Sensitivity | - | 110 dB | |
| Max Sound Pressure | 108 dB | - | |
| Diaphragm | - | 32 mm | |
| Features | - | Audio prompts |
| MICROPHONE | Sennheiser HD 450BT | Sennheiser HD 250BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | Beamforming | Omni-directional | |
| Frequency Response | 80 - 6000 Hz | 100 - 10000 Hz | Sennheiser HD 250BT offer a larger microphone frequency range than Sennheiser HD 450BT. |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Sennheiser HD 450BT | Sennheiser HD 250BT |
|---|
| Controls | - | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call |
|---|
| CABLE | Sennheiser HD 450BT | Sennheiser HD 250BT |
|---|
| Cable Type | Audio cable - detachable USB-C charge cable - detachable |
USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | Sennheiser HD 450BT | Sennheiser HD 250BT |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 600 mAh | 190 mAh | Sennheiser HD 450BT have a higher battery capacity than Sennheiser HD 250BT. |
| Battery Life | 30 hours | 25 hour(s) | Sennheiser HD 450BT lasts longer on a single charge than the Sennheiser HD 250BT. |
| Charging Time | 2 hours | 3 hour(s) | Sennheiser HD 450BT recharge faster than Sennheiser HD 450BT. |
| OTHERS | Sennheiser HD 450BT | Sennheiser HD 250BT |
|---|
| Included Accessories | Carrying case | USB-C charging cable | |
|---|---|---|---|
| Compatibility | - | iPhone, Android phone | |
| Compliant Standards | - | Bluetooth Class 1 | |
| Service & Support | Limited warranty - 2 years | - |
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