WhatsApp can only be activated with one phone number on one device at a time.
New Delhi: Come on January 1 and many smartphone users will not be able to use WhatsApp, as instant messaging apps will withdraw support from some platforms.
While mentioning about the supported operating systems, the WhatsApp page mentions that it provides support and recommendations for using the following tools:

Android running OS 4.0.3 and newer IOS 9 and newer running iPhone Choose to run KaiOS 2.5.1 new phones, including JioPhone and JioPhone 2

“When you have one of these devices, install WhatsApp and register your phone number. WhatsApp can only be activated with one phone number at a time. Also, transfer your chat history between platforms There is no option to. However, we do provide. Option to export your chat history as an email attachment. Please note, export chat is not supported in Germany, “WhatsApp says in its support page.

Heading : Stop working on these smartphones from January 1 WhatsApp: complete list of Android, iPhones

Based on the above, it can be concluded that iPhones not playing iPhone 9 will not be used for WhatsApp services from 2021 onwards. This includes all iPhone models prior to the iPhone 4. However, those using the iPhone 4S, iPhone 5, iPhone 5S, iPhone 5C, iPhone 6, and iPhone 6S, will have to update their phones with iOS 9 or later to be able to use WhatsApp.

The following phones may not be running Android OS 4.0.3 and newer

HTC Sensation
Google Nexus S
Sony Ericsson Xperia Arc
LG Optimus 2X
Samsung Galaxy S I9000
HTC Desire
Motorola Droid Razr
Samsung Galaxy S2

How to find your operating system(OS) running on your smartphone

iPhone users : go to Settings > General > Information to find out OS version on your iPhone. Android users : go to Settings > About Phone to find out OS version running on your smartphone.