Using iPhone as a camera only
I am looking to get my grandson set up with a digital camera but his parents do not want him to have a cell phone. He and I are doing photo projects together weekly and it would be good if he had all the same tools I have. (I'm using an iPhone and Snapseed which is compatible.) Would it work to get him a rebuilt iPhone without the SIM card? I'm not sure I understand what the SIM card does. Thanks
iPhone XS, iOS 14