Sony WF-1000XM4

Classification

Sony WF-1000XM4
Classification
Grade	C
Calculator version	1
Classification date	2025-10-11
Information
Name	​Sony WF-1000XM4
Brand by Parent	Sony by Sony
Generation	4th Generation
Model(s)	WF-1000XM4
Release date	2021-06-01
Type/Category	Headphone
Website	[1]
Status	End of sale
More
Dimensions	21.3*24.7*20.2mm
Mass	7.3g*2
Operating system	N/A
Companion App	Sound connect
CPU	Integrated Processor V1
GPU	N/A
Memory	N/A
Storage	N/A
Battery	Earbuds: 30 mAh (each); Charging Case: 450 mAh
Power	N/A
Charging	Qi Wireless Charging & USB-C Charging
Display	LED Indicator (on charging case)
Camera	N/A
Sound	Driver: 6mm dynamic driver; Noise Cancellation: Yes, with Integrated Processor V1; High-Resolution Audio: Yes, LDAC; Codecs: LDAC, AAC, SBC; Microphone: Yes; 3.5mm jack: No
Connectivity	Bluetooth 5.2

Device
Criterion	Value	Proof(s)	Comment
Known hardware tampering	Rare	[2]
Known vulnerabilities	None	[3]
Prior attacks	None	[4]
Updatability	Very common	[5]
Category score	2

System
Criterion	Value	Proof(s)	Comment
Authentication with other systems	Full	[6]
Communications	Encrypted with up-to-date encryption	[7]
Storage	No encryption	[8]
Category score	2

User Authentication
Criterion	Value	Proof(s)	Comment
Account management	Absent	[N/A]	Authentication and account management are offloaded to the connected phone and app.
Authentication	Basic	[9]
Brute-force protection	Absent	[10]
Event logging	Absent	[N/A]	The device lacks logging capabilities; auditing relies on the host device.
Passwords	Require change after setup	[11]
Category score	3

Grade	C