In depth comparison and review of Sennheiser MOMENTUM Free and Sennheiser CX True Wireless. 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 MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 40 g | - | |
| Dimensions & Weight Details | - | Earbud: 6 g Charging case: 5.9 cm x 4.23 cm x 3.38 cm / 37 g |
|
| Colour | Black, red | Black | White | |
| Earpad Material | Stainless steel | - | |
| Protection | - | Splashproof, IPX4 | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Sennheiser MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.2 | Sennheiser CX True Wireless have a more advanced version of Bluetooth than Sennheiser MOMENTUM Free. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, AAC, aptX, apt-X LL | SBC, AAC, aptX | |
| Noise Isolating | - | Yes | Sennheiser CX True Wireless are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Bass Boost | |
| Frequency Response | 15 - 22000 Hz | 5 - 21000 Hz | Sennheiser MOMENTUM Free offer a larger frequency range than Sennheiser CX True Wireless. |
| Total Harmonic Distortion (THD) | <0.5% | <0.08% | Sennheiser CX True Wireless have lower total harmonic distortion than Sennheiser MOMENTUM Free. |
| Sensitivity | 118 dB | 110 dB | Sennheiser MOMENTUM Free have higher sensitivity than Sennheiser CX True Wireless. |
| Impedance | 28 Ohm | 16 Ohm | |
| Max Sound Pressure | 112 dB | 110 dB | |
| Diaphragm | - | 7 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | 2 | 1 | Sennheiser MOMENTUM Free have the ability to connect to multiple devices simultaneously. |
| Features | Voice control | TrueResponse technology |
| MICROPHONE | Sennheiser MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -44 dBV/Pascal | - | |
| Microphones Included | - | 4 |
| REMOTE CONTROL | Sennheiser MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Controls | Volume, answer/end, next/previous track, reject call | - |
|---|
| CABLE | Sennheiser MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Cable Type | USB charge cable - detachable | USB-C charge cable - detachable - 25 cm |
|---|
| FEATURES | Sennheiser MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Features | - | Touch control | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Voice Control | - | Indirect | |
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Sennheiser MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 86 mAh | 60 mAh | Sennheiser MOMENTUM Free have a higher battery capacity than Sennheiser CX True Wireless. |
| Battery Life | 6 hour(s) | 9 hour(s) | Sennheiser CX True Wireless lasts longer on a single charge than the Sennheiser MOMENTUM Free. |
| Battery Life Details | - | Continuous playback (50% volume): up to 9 hours Continuous playback (with included charging case): up to 27 hours |
|
| Charging Time | 1.5 hour(s) | 1.5 hour(s) | The charging of both headphones last the same time. |
| Included Qty | - | 2 |
| OTHERS | Sennheiser MOMENTUM Free | Sennheiser CX True Wireless |
|---|
| Included Accessories | Carrying case, 4 pairs of ear tips (XS, S,M, L) | 4 pairs of earpads (extra small, small, medium, large), charging case (400 mAh) | |
|---|---|---|---|
| Compliant Standards | - | Bluetooth Class 1 |
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