Compare Razer Hammerhead True Wireless Pro vs Huawei FreeBuds 4i vs Sennheiser CX True Wireless
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.1
Bluetooth 5.2
Bluetooth 5.2
Construction
Battery | Capacity
55 mAh Earbud + 215 mAh Charging Case
2x 60 mAh (each earbud) + 400 mAh (charging case)
Colors
Red, Ceramic White, Carbon Black
Drivers
10mm
10 mm dynamic
TrueResponse Transducer Sennheiser 7mm dynamic driver
Form Factor
In-ear
Headphone Type
In-ear
In-ear, closed
Microphone
Yes
2 mic beamforming arrays (4 mics in total)
Dimensions
Size | Depth
23.9 mm
Size | Height
37.5 mm
Size | Width
21 mm
Weight
5 g
5.5 g
2x 6g (earbud) + 37g (charging case)
Function
Bluetooth Codecs
SBC, AAC
SBC, AAC, aptX
Bluetooth Profiles
A2DP, AVRCP, HFP
Fast Charging
10 minutes for 4 hours of playback
15 min for 1 h playtime
Microphone Pickup Pattern
Omnidirectional
Noise Cancellation
Active
Passive
Sensor
Wear detection sensor
Performance
Battery Life
4h per charge, up to 20h total
7.5h ANC off / 10h ANC off / 22h w/ charging case
9 h with earbuds, 27 h with charging case
Charging Time
1.5 h
Frequency Response
20Hz - 20kHz
5 Hz - 21 kHz
Impedance
16 ohms
Microphone Frequency Response
100Hz - 10kHz
100 Hz - 10 kHz
Microphone Sensitivity
-42 dB
Production
Availability
2021-07-08
Debut
2020-12-03
2021
2021-06-28
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