Download the APK file to your phone and tap it to install.
Since multi-device linking fails:
While side-loading an older WhatsApp APK onto Android 4.4.2 is technically possible as a temporary experiment, it is not a viable long-term solution for daily communication. The security vulnerabilities, threat of account bans, and server-side blocks make it highly impractical. whatsapp for android 4.4.2
Users attempting to use WhatsApp on an Android 4.4.2 device will encounter the following: Service Interruption: Download the APK file to your phone and tap it to install
Android 4.4.2 struggles with modern memory leaks. threat of account bans