Transferring data android to iPhone.

Hi I want to know if there's a way I can "back up" my android device and then transfer that data onto a new iPhone the way you can through iTunes back up when going iPhone to iPhone?

I used to have an iPhone and I want to go back but am now worried I will lose all my data on my current android device 😟

I need to be able to do it without the devices being next to each other as I will need to sell the samsung to buy the iPhone and thus won't have access to both simultaneously.