iPhone 13 compatibility issues with Google Pay

Your iPhone 13 is capable of running iOS 17.4.1. Update to that and you should be OK.

Update your iPhone, iPad, or iPod touch

Go to Settings > General > Software Update.

This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -

Update your iPhone or iPad - Apple Support

This link will show you how to update using your computer -

Update iOS on iPhone - Apple Support

sreedhar176 Said:

"My i phone 13 doesnot support g: [...]Now it says system doesn’t support as it requires I is 17 and above while mine is 16.5.1"

-------

Getting Google Pay to Work:

Well according to Google, when it comes to using Google Pay app. So, use that app, getting it in the App Store. See the last bulleted item on google's site: Download the Google Pay App - Google Support

Screenshot: