Will you still be able to use WhatsApp after Jan 1, 2021?

WhatsApp is a cross-platform messaging and Voice over IP service owned by Facebook. — AFP

As of Jan 1, 2021, the WhatsApp mobile application will only be compatible with smartphones running iOS 9 and Android 4.0.3, or any other newer operating system. This excludes older models such as the iPhone 4 or the Samsung Galaxy SII.

For Apple phones, WhatsApp will only be supported on iOS 9, and its successors. It is therefore important to update your old iPhone to continue to enjoy WhatsApp. Unfortunately, owners of an iPhone 4 (or any other anterior model) will no longer be able to use the application.