Compare Bowers Wilkins PI7 vs Huawei FreeBuds 4i vs Ultimate Ears FITS
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth
Bluetooth 5.2
Bluetooth 5.0
Construction
Battery | Capacity
55 mAh Earbud + 215 mAh Charging Case
Cable
20cm USB-C cable
Carrying Case
Yes
Charging case
Colors
White, Charcoal
Red, Ceramic White, Carbon Black
Grey, Lilac, Midnight Blue
Drivers
9.2mm Dynamic Drive + Balanced Armature
10 mm dynamic
10 mm
Form Factor
In-Ear, True Wireless Headphones, Earbuds
True Wireless Earphones, Dynamic Headphones
Headphone Type
Dynamic headphones
In-ear
Microphone
4x mics for ANC + 2x mics for telephony
Yes
Yes
Dimensions
Size | Depth
23.9 mm
Size | Height
37.5 mm
Size | Width
21 mm
Weight
8 g
5.5 g
Function
Bluetooth Codecs
AptX Adaptive, aptX HD, aptX Low Latency, aptX Classic, AAC, SBC
SBC, AAC, APT-X
Bluetooth Profiles
A2DP v1.3.1, AVRCP v1.6.1, HFP v1.7.1, HSP v1.2, BLE GATT
Fast Charging
2hrs with 15min charge
10 minutes for 4 hours of playback
10 min of charge for 60 min of listening
Noise Cancellation
Yes
Active
Sensor
Wear detection sensor
Weather Resistance
Sweat Resistant / IPX3
Performance
Battery Life
4hrs Bluetooth with ANC
7.5h ANC off / 10h ANC off / 22h w/ charging case
8 hours / 20 h with charging case
Frequency Response
10Hz ~ 20kHz
20 Hz - 20 kHz
Max Sound Level
110 db at 500 Hz
Total Harmonic Distortion
0.3% (1kHz/10mW)
Production
Debut
2021-04
2021
2020-10-01
Made In
USA
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