In order to donate using Apple Pay, you can either:
Access this page on a Mac running macOS Sierra or later, and then authorize the payment using one of the devices below, OR
Access this page on one of the devices, running iOS 10 or later, that is listed below.
Supported devices (one of these is required):
iPhone 6 or later
iPad mini 3 or later
iPad Air 2
You also must be using the Safari web browser to access this page.