In depth comparison and review of Sennheiser CX True Wireless and Huawei FreeBuds 4. 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 CX True Wireless | Huawei FreeBuds 4 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | Earbud: 6 g Charging case: 5.9 cm x 4.23 cm x 3.38 cm / 37 g |
Charging case: 5.8 cm x 5.8 cm x 2.12 cm / 38 g Earbud: 1.68 cm x 1.85 cm x 4.14 cm / 4.1 g |
|
| Colour | Black | White | Ceramic white | Silver frost | |
| Protection | Splashproof, IPX4 | Splashproof, dust-resistant, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| High-Resolution Audio | - | Yes |
| SOUND QUALITY | Sennheiser CX True Wireless | Huawei FreeBuds 4 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.2 | Bluetooth 5.2 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), 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 | |
| Active Noise Cancelling | - | Yes | Huawei FreeBuds 4 are equipped with active noice cancellation. |
| 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 | 5 - 21000 Hz | 20 - 20000 Hz | Sennheiser CX True Wireless offer a larger frequency range than Huawei FreeBuds 4. |
| Total Harmonic Distortion (THD) | <0.08% | - | |
| Sensitivity | 110 dB | - | |
| Impedance | 16 Ohm | - | |
| Max Sound Pressure | 110 dB | - | |
| Diaphragm | 7 mm | 14.3 mm | Huawei FreeBuds 4 have a thicker diaphragm than Sennheiser CX True Wireless. |
| Simultaneously Connectable Devices Qty (Multipoint) | 1 | - | |
| Features | TrueResponse technology | - |
| MICROPHONE | Sennheiser CX True Wireless | Huawei FreeBuds 4 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Noise Cancelling | - | Yes | Huawei FreeBuds 4 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 4 | - |
| REMOTE CONTROL | Sennheiser CX True Wireless | Huawei FreeBuds 4 |
|---|
| Controls | - | Swipe control |
|---|
| CABLE | Sennheiser CX True Wireless | Huawei FreeBuds 4 |
|---|
| Cable Type | USB-C charge cable - detachable - 25 cm | - |
|---|
| FEATURES | Sennheiser CX True Wireless | Huawei FreeBuds 4 |
|---|
| Features | Touch control | - | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | Yes | - | |
| Voice Control | Indirect | - | |
| Intelligent Assistant | Siri, Google Assistant | - | |
| Sensors | - | Wear sensor |
| BATTERY AND CHARGING | Sennheiser CX True Wireless | Huawei FreeBuds 4 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 60 mAh | 30 mAh | Sennheiser CX True Wireless have a higher battery capacity than Huawei FreeBuds 4. |
| Battery Life | 9 hour(s) | 4 hour(s) | Sennheiser CX True Wireless lasts longer on a single charge than the Huawei FreeBuds 4. |
| Battery Life Details | Continuous playback (50% volume): up to 9 hours Continuous playback (with included charging case): up to 27 hours |
Continuous playback (active noise-cancelling off): up to 4 hours Continuous playback (active noise-cancelling on): up to 2.7 hours Continuous playback (active noise-cancelling off) (with included charging case): up to 22 hours Continuous playback (active noise-cancelling on) (with included charging case): up to 14 hours Continuous talk (active noise-cancelling off): up to 2.3 hours Continuous talk (active noise-cancelling on): up to 2 hours |
|
| Charging Time | 1.5 hour(s) | 1 hour(s) | Huawei FreeBuds 4 recharge faster than Sennheiser CX True Wireless. |
| Included Qty | 2 | - |
| OTHERS | Sennheiser CX True Wireless | Huawei FreeBuds 4 |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (400 mAh) | USB-C charging cable, charging case (410 mAh) | |
|---|---|---|---|
| Compliant Standards | Bluetooth Class 1 | RoHS, halogen-free, IPX4 |
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