Compare Huawei FreeBuds 4i vs Sennheiser CX 400BT
Connectivity
Ports
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.2
Bluetooth 5.1
Construction
Battery | Capacity
55 mAh Earbud + 215 mAh Charging Case
Colors
Red, Ceramic White, Carbon Black
Drivers
10 mm dynamic
Sennheiser 7mm dynamic driver
Headphone Type
In-ear
In-ear, closed
Microphone
Yes
Dimensions
Size | Depth
23.9 mm
Size | Height
37.5 mm
Size | Width
21 mm
Weight
5.5 g
2x 6g (earbud) + 37g (charging case)
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
Performance
Battery Life
7.5h ANC off / 10h ANC off / 22h w/ charging case
7 h with earbuds, 20 h with charging case
Charging Time
1.5 h
Frequency Response
5 Hz - 21 kHz
Microphone Frequency Response
100 Hz - 10 kHz
Production
Availability
2020-09-15
Debut
2021
2020-09-01
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