WhatsApp is going stop working on these old phones Samsung and Apple
India Today
WhatsApp recommends for a “better experience” that Android users use a device that is compatible with version 4.1 or later and iPhone users, to have iOS 10 or later.
WhatsApp, the most popular messaging application used daily by hundreds of millions of people will stop working for certain old phones. Come 1st of November the instant messaging application will stop working on certain types of Android and iOS mobile phones, something that will undoubtedly affect millions of people.
The reason behind this move by WhatsApp is that these are old devices and keeping them supported would require enormous resources to be devoted to them. Also, it is a fact that WhatsApp has undergone several changes over the years and new features have been added that these phones do not support. Also, there is the problem of security. Providing security on these old devices is extremely difficult for the Facebook-owned app.