The ability to run WhatsApp depends entirely on which version of the "new" Nokia 3310 4G (China/International): (based on Android) or . This is the only version of the that may technically support WhatsApp
: WhatsApp's official beta program is primarily for Android and iOS. You can check the WhatsApp Beta Program on Google Play, but this will not work for your Nokia 3310. whatsapp beta 3310 download link
You can't install apps on the Nokia 3210, but you can still access the internet with it. Installing WhatsApp/browser/apps on Nokia 3310 (2017) The ability to run WhatsApp depends entirely on