Compare Bowers & Wilkins PI4 vs Apple AirPods Max vs Bowers & Wilkins PX7
Connectivity
Ports
USB-C
USB-C
3.5mm stereo jack + USB-C
Wireless Connectivity
Bluetooth, USB-C
Bluetooth 5.0
Bluetooth
Construction
Cable
20cm USB-A to USB-C cable
1.2m stereo audio cable + 1.2m USB-A to USB-C cable
Carrying Case
Smart Case
Yes
Colors
Black, Gold, Silver
Silver, Space Gray, Sky Blue, Pink, Green
Space Grey, Silver, Carbon
Drivers
14.2mm full range
40mm Apple-designed dynamic driver with dual neodymium ring magnet
43.6mm full range
Form Factor
In-Ear, Neckband Wireless Headphones, Earbuds
Over-ear wireless headphones
Wireless Headphones, Over-Ear
Headphone Type
Dynamic headphones
Dynamic
Dynamic headphones
Microphone
2x mics for ANC + 2x mics for telephony
9x microphones: 8x for ANC, 3x for voice pickup
4x mics for ANC + 2x mics for telephony
Dimensions
Size | Depth
3.28 inches / 83.4 mm
Size | Height
7.37 inches / 187.3 mm
Size | Width
6.64 inches / 168.6 mm
Weight
40 g
13.6 ounces / 384.8 grams
310 g
Function
Bluetooth Codecs
AptX-Adaptive, aptX-HD, aptX-Classic, AAC, SBC
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
A2DP v1.3.1, AVRCP v1.6.1, HFP v1.7.1, HSP v1.2, BLE GATT
Fast Charging
3hrs with 15min charge
5 min for 1.5 hours of listening time
5hrs with 15min charge
Noise Cancellation
Yes
Yes, with transparency mode
Yes
Processor
Apple H1 headphone chip (each ear cup)
Sensor
Both ear cups: Optical sensor, Position sensor, Case-detect sensor, Accelerometer / Left ear cup: Gyroscope
Performance
Battery Life
10hrs Bluetooth with ANC (12hrs w/o)
Up to 20 hours
30 hrs Bluetooth with ANC
Frequency Response
10Hz ~ 30kHz
10Hz ~ 30kHz
Impedance
20k Ohms
Total Harmonic Distortion
0.3% (1kHz/10mW)
0.3% (1kHz/10mW)
Production
Accessory
Ear Tips: S / M / L
Availability
2020-12-15
Debut
2019-10
2020-12-08
2019-10
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