Side by side comparison and review of Sennheiser CX 400BT and Soundcore Liberty 4. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
DESIGN AND DIMENSIONS | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
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Weight | - | 55 g | |
Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
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Colour | White | Black | Midnight black | |
Protection | - | IPX4, water-resistant | |
Recommended Use | Portable electronics | Portable electronics | |
High-Resolution Audio | - | Yes | |
Tracking Data | - | Heart rate |
SOUND QUALITY | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Headphones Form Factor | In-ear | In-ear | |
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Headphones Technology | Dynamic | - | |
Connectivity Technology | Wireless | Wireless | |
Wireless Technology | Bluetooth | Bluetooth | |
Bluetooth Version | Bluetooth 5.1 | - | |
Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
Bluetooth Audio Codec | SBC, AAC, aptX | LDAC | |
Active Noise Cancelling | - | Yes | Soundcore Liberty 4 are equipped with active noice cancellation. |
Sound Output Mode | Stereo | Stereo | |
Sound Effects | - | 360° Spatial Audio | |
Frequency Response | 5 - 21000 Hz | Up to 40000 Hz | |
Total Harmonic Distortion (THD) | 0.08% | - | |
Max Sound Pressure | 107 dB | - | |
Diaphragm | 7 mm | - | |
Features | - | MultiPoint Technology, ACAA 3.0 technology |
MICROPHONE | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Form Factor | Built-in | Built-in | |
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Noise Cancelling | - | Yes | Soundcore Liberty 4 microphone can cancel out ambient noise. |
Microphones Included | - | 6 |
REMOTE CONTROL | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | Answer/end, play/pause, squeeze control, ANC/transparency/normal |
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CABLE | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | - |
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FEATURES | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Features | Voice alerts, touch control | HearID 2.0 Technology, Dynamic Head Tracking | |
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Intelligent Assistant | Siri, Google Assistant | - | |
Sensors | - | Gyroscope |
BATTERY AND CHARGING | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - wireless charging | |
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Battery Capacity | 55 mAh | - | |
Battery Life | 7 hour(s) | 9 hour(s) | Soundcore Liberty 4 lasts longer on a single charge than the Sennheiser CX 400BT. |
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 9 hours Continuous playback (with included charging case): up to 28 hours |
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Charging Time | 1.5 hour(s) | 1 hour(s) | Soundcore Liberty 4 recharge faster than Sennheiser CX 400BT. |
Included Qty | 2 | - |
WIRELESS LINK | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Radio Transmitter Power | 10 mW | - |
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OTHERS | Sennheiser CX 400BT | Soundcore Liberty 4 |
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Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | Charging case, CloudComfort ear tips (S/M1/M2/L)) | |
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Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | IPX4 | |
Service & Support | - | Limited warranty - 18 months |