Side by side comparison and review of Amazon Echo Buds and Sennheiser CX 400BT. 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 | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | Charging case: 7.7 cm x 5.7 cm x 2.9 cm / 70 g Earbud: 2.2 cm x 2.3 cm x 2.4 cm / 7.6 g |
Earbud: 6 g Charging case: 37 g |
|
| Colour | - | White | Black | |
| Protection | Sweat-resistant, water-resistant | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.1 | Sennheiser CX 400BT have a more advanced version of Bluetooth than Amazon Echo Buds. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Serial Port Profile (SPP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX | |
| Active Noise Cancelling | Yes | - | Amazon Echo Buds are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Bose Active Noise Reduction | - | |
| Noise Isolating | Yes | - | Amazon Echo Buds are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 5 - 21000 Hz | |
| Total Harmonic Distortion (THD) | - | 0.08% | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | - | 7 mm |
| MICROPHONE | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Beamforming | - |
| REMOTE CONTROL | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Controls | Mute, voice assistant | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Cable Type | Micro-USB charge cable | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | Yes | - | |
| Intelligent Assistant | Siri, Google Assistant, Alexa | Siri, Google Assistant | |
| Sensors | Accelerometer, proximity sensor, touch sensor | - |
| BATTERY AND CHARGING | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 55 mAh | |
| Battery Life | 5 hour(s) | 7 hour(s) | Sennheiser CX 400BT lasts longer on a single charge than the Amazon Echo Buds. |
| Battery Life Details | Continuous playback: up to 5 hours Continuous playback (with included charging case): up to 20 hours Continuous talk (with included charging case): up to 16 hours Continuous talk: up to 4 hours |
Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
|
| Charging Time | - | 1.5 hour(s) | |
| Included Qty | - | 2 |
| WIRELESS LINK | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Radio Transmitter Power | - | 10 mW |
|---|
| CONNECTIONS | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Connector Type | USB (5 pin Micro-USB Type B) | - |
|---|
| OTHERS | Amazon Echo Buds | Sennheiser CX 400BT |
|---|
| Included Accessories | 3 pairs of ear tips (small, medium, large), 3 pairs of wing tips (small, medium, large) | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Compliant Standards | IPX4 | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | |
| Service & Support | Limited warranty - 1 year | - |
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