In depth comparison and review of Sennheiser CX 400BT and Xiaomi Buds 3. 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 | Xiaomi Buds 3 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
Earphone: 4.6 g Charging case with earphones: 52 g |
|
| Colour | White | Black | Carbon black | |
| Protection | - | Dust-resistant, sweat-resistant | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| 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 | Xiaomi Buds 3 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) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX | - | |
| Active Noise Cancelling | - | Yes | Xiaomi Buds 3 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 5 - 21000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.08% | - | |
| Max Sound Pressure | 107 dB | - | |
| Diaphragm | 7 mm | - |
| MICROPHONE | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphones Included | - | 3 |
| REMOTE CONTROL | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | - |
|---|
| CABLE | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | USB-C charge cable - detachable |
|---|
| FEATURES | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Features | Voice alerts, touch control | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Assistant | - |
| BATTERY AND CHARGING | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery rechargeable - wireless charging | |
|---|---|---|---|
| Battery Capacity | 55 mAh | 38 mAh | Sennheiser CX 400BT have a higher battery capacity than Xiaomi Buds 3. |
| Battery Life | 7 hour(s) | 7 hour(s) | Both headphones last the same amount of time on a single charge. |
| Battery Life Details | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
Continuous playback (active noise-cancelling off): up to 7 hours Continuous playback (active noise-cancelling off) (with included charging case): up to 35 hours |
|
| Wireless Charging Standards | - | Qi | |
| Charging Time | 1.5 hour(s) | - | |
| Included Qty | 2 | - |
| WIRELESS LINK | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Radio Transmitter Power | 10 mW | - |
|---|
| CONNECTIONS | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Connector Type | - | USB (power only) (USB Type-C) |
|---|
| OTHERS | Sennheiser CX 400BT | Xiaomi Buds 3 |
|---|
| Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | 3 pairs of silicone ear tips (small, medium, large), charging case (480 mAh) | |
|---|---|---|---|
| Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | IP55 | |
| Service & Support | - | Limited warranty - 2 years |
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