In depth comparison and review of Xiaomi MI AirDots and Sennheiser CX 400BT. 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 | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
|
| Colour | White | White | Black | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Xiaomi MI AirDots | 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 Xiaomi MI AirDots. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | AAC | SBC, AAC, aptX | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | - | 5 - 21000 Hz | |
| Total Harmonic Distortion (THD) | - | 0.08% | |
| Impedance | 16 Ohm | - | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | 7.2 mm | 7 mm | Xiaomi MI AirDots have a thicker diaphragm than Sennheiser CX 400BT. |
| MICROPHONE | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Form Factor | Built-in | Built-in |
|---|
| REMOTE CONTROL | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Controls | - | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Cable Type | USB charge cable - detachable | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Xiaomi MI AirDots | 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 Xiaomi MI AirDots. |
| Battery Life Details | Continuous playback: up to 5 hours Continuous playback (with included charging case): up to 12 hours |
Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
|
| Charging Time | 4 hour(s) | 1.5 hour(s) | Sennheiser CX 400BT recharge faster than Xiaomi MI AirDots. |
| Included Qty | - | 2 |
| WIRELESS LINK | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Radio Transmitter Power | - | 10 mW |
|---|
| CONNECTIONS | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Connector Type | Bluetooth USB (power only) |
- |
|---|
| OTHERS | Xiaomi MI AirDots | Sennheiser CX 400BT |
|---|
| Included Accessories | Charging case, 3 ear tips (small, medium, large) | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Compatibility | iPhone, iPad | - | |
| Compliant Standards | - | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU |
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