Compare Sennheiser CX 400BT vs Huawei FreeBuds Pro vs Huawei FreeBuds 4i
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.1
Bluetooth 5.2
Construction
Battery | Capacity
55 mAh
55 mAh Earbud + 215 mAh Charging Case
Colors
Silver Frost, Ceramic White, Carbon Black
Red, Ceramic White, Carbon Black
Drivers
Sennheiser 7mm dynamic driver
11 mm dynamic
10 mm dynamic
Headphone Type
In-ear, closed
In-ear
Microphone
Yes
Dimensions
Size | Depth
21.7 mm
23.9 mm
Size | Height
26 mm
37.5 mm
Size | Width
29.6 mm
21 mm
Weight
2x 6g (earbud) + 37g (charging case)
6.1 g
5.5 g
Function
Bluetooth Codecs
SBC, AAC, aptX
Bluetooth Profiles
A2DP, AVRCP, HSP, HFP
Fast Charging
10 minutes for 4 hours of playback
Noise Cancellation
Active
Sensor
Wear detection sensor
Wireless Charging
2 W
Performance
Battery Life
7 h with earbuds, 20 h with charging case
4 h (ANC on) / 7 h (ANC off)
7.5h ANC off / 10h ANC off / 22h w/ charging case
Charging Time
1.5 h
40 min
Frequency Response
5 Hz - 21 kHz
Microphone Frequency Response
100 Hz - 10 kHz
Production
Availability
2020-09-15
Debut
2020-09-01
2020-09-10
2021
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