Companion Mode Will Enable The Secondary Mobile Device To Be Linked To The User's Whatsapp Account.
This Means You Can Now Use The Same Account Of The App On Multiple Devices At The Same Time.
This Feature Was Already Present When Desktop Devices Were Used, Now The Company Is Expanding It To Mobile Devices As Well.
Whenever A User Chooses To Link A Secondary Device To Their Account On Whatsapp, They Will Experience An Automatic Logout On The Other Mobile Device By Default.