Compare Huawei FreeBuds 4i vs Redmi Buds 3 Pro vs Bowers & Wilkins PI5
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.2
Bluetooth 5.2
Bluetooth
Wireless Range
10 m
Construction
Battery | Capacity
55 mAh Earbud + 215 mAh Charging Case
35mAh / 0.13Wh
Cable
20cm USB-C cable
Carrying Case
Yes
Colors
Red, Ceramic White, Carbon Black
Glacier Gray, Graphite Black
White, Charcoal
Drivers
10 mm dynamic
9 mm composite vibrating diaphragm coil
9.2mm Dynamic Drive with Balanced Armature
Form Factor
In-Ear, True Wireless Headphones
In-Ear, True Wireless Headphones, Earbuds
Headphone Type
In-ear
Dynamic headphones
Dynamic headphones
Microphone
Yes
3 microphones per earbud
2x mics for ANC + 2x mics for telephony
Dimensions
Size | Depth
23.9 mm
25.4 mm
Size | Height
37.5 mm
21.3 mm
Size | Width
21 mm
20.3 mm
Weight
5.5 g
4.9 g
8 g
Function
Bluetooth Codecs
AptX, AAC, SBC
Bluetooth Profiles
A2DP v1.3.1, AVRCP v1.6.1, HFP v1.7.1, HSP v1.2, BLE GATT
Fast Charging
10 minutes for 4 hours of playback
10 minutes for 3 hours
2hrs with 15min charge
Noise Cancellation
Active
Active Noise Cancellation
Yes
Sensor
Wear detection sensor
Wireless Charging
Yes
Performance
Battery Life
7.5h ANC off / 10h ANC off / 22h w/ charging case
6 hours music w/ ANC off, up to 28 hours w/ charging case
4hrs Bluetooth with ANC
Charging Time
1 hour
Frequency Response
10Hz ~ 20kHz
Impedance
32 ohms
Total Harmonic Distortion
0.3% (1kHz/10mW)
Production
Debut
2021
2021-06-27
2021-04
Model Name
TWSEJ01ZM
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