Detailed comparison and review of Sennheiser CX 400BT and Sennheiser MOMENTUM True Wireless 3. 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 | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
Charging case: 7.01 cm x 4.46 cm x 3.48 cm / 66.4 g Charging case with earphones: 78 g Earphone: 5.8 g |
|
| Colour | White | Black | Black | Graphite | |
| Protection | - | Splashproof, IPX4 | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.2 | Sennheiser MOMENTUM True Wireless 3 have a more advanced version of Bluetooth than Sennheiser CX 400BT. |
| 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 | SBC, AAC, aptX, aptX Adaptive | |
| Active Noise Cancelling | - | Yes | Sennheiser MOMENTUM True Wireless 3 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adaptive Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 21000 Hz | 5 - 21000 Hz | Both headphones offer the same frequency response. |
| Total Harmonic Distortion (THD) | 0.08% | <0.08% | Both headphones have the same total harmonic distortion. |
| Sensitivity | - | 107 dB | |
| Max Sound Pressure | 107 dB | - | |
| Diaphragm | 7 mm | 7 mm | Both headphones are designed with same thick diaphragm. |
| MICROPHONE | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | - | 100 - 10000 Hz |
| REMOTE CONTROL | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | - |
|---|
| CABLE | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | USB-C charge cable |
|---|
| FEATURES | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Features | Voice alerts, touch control | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant | - |
| BATTERY AND CHARGING | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 55 mAh | 77 mAh | Sennheiser MOMENTUM True Wireless 3 have a higher battery capacity than Sennheiser CX 400BT. |
| Battery Life | 7 hour(s) | 7 hour(s) | Both headphones last the same amount of time on a single charge. |
| Battery Life Details | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
Continuous playback: up to 7 hours Continuous playback (with included charging case): up to 28 hours |
|
| Charging Time | 1.5 hour(s) | 1.5 hour(s) | The charging of both headphones last the same time. |
| Included Qty | 2 | - |
| WIRELESS LINK | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Radio Transmitter Power | 10 mW | - |
|---|
| OTHERS | Sennheiser CX 400BT | Sennheiser MOMENTUM True Wireless 3 |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | Charging case, 4 pairs of ear tips (XS, S,M, L) | |
|---|---|---|---|
| Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | - | |
| Service & Support | - | Limited warranty - 2 years |
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