In depth comparison and review of Sennheiser CX 400BT and JBL Wave Flex. 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 400BT | JBL Wave Flex |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
Earbud: 1.857 cm x 3.348 cm x 1.846 cm / 3.8 g Charging case: 4.937 cm x 5.484 cm x 2.585 cm / 35.1 g |
|
| Colour | White | Black | White | Black | Beige | Blue | |
| Protection | - | Dust-resistant, water-resistant | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.2 | JBL Wave Flex 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 | - | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Deep Bass | |
| Frequency Response | 5 - 21000 Hz | 20 - 20000 Hz | Sennheiser CX 400BT offer a larger frequency range than JBL Wave Flex. |
| Total Harmonic Distortion (THD) | 0.08% | - | |
| Sensitivity | - | 105 dB | |
| Impedance | - | 16 Ohm | |
| Max Sound Pressure | 107 dB | 95 dB | |
| Diaphragm | 7 mm | 12 mm | JBL Wave Flex have a thicker diaphragm than Sennheiser CX 400BT. |
| MICROPHONE | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | - |
|---|
| CABLE | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | - |
|---|
| FEATURES | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Features | Voice alerts, touch control | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant | - |
| BATTERY AND CHARGING | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 55 mAh | 40 mAh | Sennheiser CX 400BT have a higher battery capacity than JBL Wave Flex. |
| Battery Life | 7 hour(s) | - | |
| 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 8 hours Continuous playback (with included charging case): up to 32 hours Continuous talk: up to 4.5 hours |
|
| Charging Time | 1.5 hour(s) | 2 hours | Sennheiser CX 400BT recharge faster than Sennheiser CX 400BT. |
| Included Qty | 2 | - |
| WIRELESS LINK | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Radio Transmitter Power | 10 mW | - |
|---|
| OTHERS | Sennheiser CX 400BT | JBL Wave Flex |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | Charging case (500 mAh), USB-C charging cable | |
|---|---|---|---|
| Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | IP54 |
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