How Much Data Does WhatsApp Use for Calls, Messages, and Video While Abroad?

https://wiki-canyon.win/index.php/ESIM_Data_Plans:_How_to_Know_If_1GB,_5GB,_or_Unlimited_Is_Right_for_Your_Trip

For international travelers, WhatsApp has effectively replaced the traditional phone call. It's free, it works across borders, and nearly every person on the planet with a smartphone has it