Compare Huawei FreeBuds Pro vs Huawei FreeBuds 4i vs Sennheiser CX True Wireless
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.2
Bluetooth 5.2
Construction
Battery | Capacity
55 mAh
55 mAh Earbud + 215 mAh Charging Case
2x 60 mAh (each earbud) + 400 mAh (charging case)
Colors
Silver Frost, Ceramic White, Carbon Black
Red, Ceramic White, Carbon Black
Drivers
11 mm dynamic
10 mm dynamic
TrueResponse Transducer Sennheiser 7mm dynamic driver
Headphone Type
In-ear
In-ear, closed
Microphone
Yes
2 mic beamforming arrays (4 mics in total)
Dimensions
Size | Depth
21.7 mm
23.9 mm
Size | Height
26 mm
37.5 mm
Size | Width
29.6 mm
21 mm
Weight
6.1 g
5.5 g
2x 6g (earbud) + 37g (charging case)
Function
Bluetooth Codecs
SBC, AAC, aptX
Bluetooth Profiles
A2DP, AVRCP, HFP
Fast Charging
10 minutes for 4 hours of playback
15 min for 1 h playtime
Noise Cancellation
Active
Passive
Sensor
Wear detection sensor
Wireless Charging
2 W
Performance
Battery Life
4 h (ANC on) / 7 h (ANC off)
7.5h ANC off / 10h ANC off / 22h w/ charging case
9 h with earbuds, 27 h with charging case
Charging Time
40 min
1.5 h
Frequency Response
5 Hz - 21 kHz
Microphone Frequency Response
100 Hz - 10 kHz
Production
Availability
2021-07-08
Debut
2020-09-10
2021
2021-06-28
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