At the moment, it is to use WhatsApp on Android 4.4.2 (KitKat) . As of late 2023, the official WhatsApp support requires Android 5.0 (Lollipop) or newer .
If your Android 4.4.2 phone is your only device, try these options: whatsapp para android 4.4.2 4 apk
Check your phone's settings ( Settings > About Phone > System Updates ) to see if a newer version of Android is available for your device. At the moment, it is to use WhatsApp on Android 4