According to The Nation which disclosed that WhatsApp will stop working for some iPhones as well as Android smartphones starting January 1, 2021,
There are a range of Android and iOS devices that may not be able to run the app, as next year the company will drop support for older OS models.
WhatsApp will only be compatible with phones running the Android 4.0.3 operating system or newer, as well as iPhones running on iOS 9 and newer, according to the WhatsApp FAQ section data collected by The Government.
In the next few days, all iPhone models up to the iPhone 4 will lose messaging platform support. The iPhone 4S, iPhone 5, iPhone 5S, iPhone 6, and iPhone 6S are included in the iPhone models.
As 2020 ends, devices such as HTC Desire, Motorola Droid Razr, LG Optimus Black, and the Samsung Galaxy S2 will lose support for WhatsApp for Android.
For select phones with KaiOS 2.5.1 OS or newer, like JioPhone and JioPhone 2, the instant messaging platform can keep the software going.
To check which OS an iPhone is running head over to the Settings menu, then to the General and Information option, Software and the users will be able to see the OS running that particular iPhone.
Android users can head to Settings, then About Phone to see which Android version their smartphone is running on.
These phones would lose WhatsApp support from January 1, 2021:
· Apple iPhone 1-4
· Samsung Galaxy S2
· HTC Desire
· LG Optimus Black
· Motorola Droid Razr
· Any Android released before 2010
These phones will need to update to at least iOS 9 or Android OS 4.0.3:
· Apple iPhone 4S
· iPhone 5
· iPhone 5S
· iPhone 6
· iPhone 6S
· Samsung Galaxy S3 and newer
· Samsung Galaxy Note
· HTC Sensation
· HTC Thunderbolt
· LG Lucid
· Motorola Droid 4