WhatsApp will eventually stop working on iPhones running iOS versions earlier than 15.1. However, iPhone users have more time to upgrade, as support for these devices will continue until May 2025. ...

Essentially, if you are using a device that is over a decade old, it is advised that you upgrade to a phone with a newer ...

WhatsApp will stop working on over 20 older Android phones, including models from Samsung, Motorola, HTC, LG, and Sony, running Android KitKat or earlier.

Changes to WhatsApp's operating system compatibility will affect 18 models of Andriod phone and 3 iPhone models.