Compare Bowers & Wilkins PI4 vs Bose Sleepbuds II vs Sony WF-XB700
Connectivity
Ports
USB-C
USB
Wireless Connectivity
Bluetooth, USB-C
Bluetooth 5.0
Bluetooth
Construction
Cable
20cm USB-A to USB-C cable
1 m
Colors
Black, Gold, Silver
Drivers
14.2mm full range
Form Factor
In-Ear, Neckband Wireless Headphones, Earbuds
In-ear
Headphone Type
Dynamic headphones
Dynamic, closed
Magnet
Neodymium
Material
Earbuds: Plastic / Eartips: Silicone / Case: Aluminum
Microphone
2x mics for ANC + 2x mics for telephony
Dimensions
Size | Depth
12.7 mm
Size | Height
24.9 mm
Size | Width
28 mm
Weight
40 g
2.27 g
Function
Bluetooth Codecs
AptX-Adaptive, aptX-HD, aptX-Classic, AAC, SBC
Bluetooth Profiles
A2DP v1.3.1, AVRCP v1.6.1, HFP v1.7.1, HSP v1.2, BLE GATT
Fast Charging
3hrs with 15min charge
Noise Cancellation
Yes
Noise Masking
Weather Resistance
IPX4
IPX4
Performance
Battery Life
10hrs Bluetooth with ANC (12hrs w/o)
Up to 10 hours
9h + 9h from case
Charging Time
6 hours
Frequency Response
10Hz ~ 30kHz
Total Harmonic Distortion
0.3% (1kHz/10mW)
Production
Accessory
Ear Tips: S / M / L
Availability
2020-10-06
Debut
2019-10
2020-09-22
2020-05-07
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