u/Heavy_Speaker_5105

Hello, I need help transferring data. I have 3 devices: an iPad, an iPhone and a Samsung. i wanted to use my iPhone as a secondary phone so I transferred the data from my iPad to my iPhone. I now have my sim and everything I need on my iPhone but my WhatsApp is still on my Samsung. Does anyone know how I can transfer the old chat logs and data from WhatsApp to the iPhone? Can I back up the data on my iPhone, factory reset it and put the WhatsApp and contacts data only and then retrieve the backup? I tried looking it up but it wasn’t very clear.