In depth comparison and review of Sennheiser HD 4.40 and Bose QuietComfort 35 II. 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 4.40 | Bose QuietComfort 35 II |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Height | - | 18 cm | |
| Width | - | 17 cm | |
| Depth | - | 8.13 cm | |
| Weight | - | 309 g | |
| Colour | - | Triple midnight | Rose gold | Black | Silver | |
| Body Material | - | Plastic, metal, leather, alcantara | |
| Earpad Material | - | Leather | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 9 m |
| SOUND QUALITY | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Foldable | - | Yes | Bose QuietComfort 35 II can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.1 | Bose QuietComfort 35 II have a more advanced version of Bluetooth than Sennheiser HD 4.40. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | - | Yes | Bose QuietComfort 35 II are equipped with active noice cancellation. |
| Noise Isolating | - | Yes | Bose QuietComfort 35 II are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 113 dB | - | |
| Impedance | 18 Ohm | - |
| MICROPHONE | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 2 | 2 | Both headphones have a built-in microphone. |
| REMOTE CONTROL | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Controls | - | Volume, power on/off, play/pause, next/previous track, skip track, voice assistant |
|---|
| CABLE | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Cable Type | - | Headphones cable - detachable - 1.2 m USB charge cable - detachable - 30 cm |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | - | Gold |
| FEATURES | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Internet of Things (IoT) Compatible | - | Yes | |
|---|---|---|---|
| Intelligent Assistant | - | Google Assistant |
| BATTERY AND CHARGING | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Battery Type | Headphone battery lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 20 hour(s) | |
| Charging Time | - | 2.25 hour(s) |
| CONNECTIONS | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Connector Type | - | Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Sennheiser HD 4.40 | Bose QuietComfort 35 II |
|---|
| Included Accessories | - | Carrying case | |
|---|---|---|---|
| Compatibility | - | iPhone, iPad, iPod, Android phone | |
| Service & Support | - | Limited warranty - parts and labour - 1 year |
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