Sorry, but the regular iPhone 15 is a way better upgrade than the iPhone 15 Pro
iPhone 15 Pro Review with Pros and Cons - Smartprix
iPhone 15 vs. iPhone 15 Pro: Which is best for you?
iPhone 15 vs. 15 Pro: What are the differences?
iPhone 15 Pro Max review: almost perfect
What will be the difference between the iPhone 14 Pro and the iPhone 15 Pro models? - Quora
iPhone 15 Pro vs iPhone 15: which one should you go for? - PhoneArena
iPhone - Wikipedia
Apple's iPhone 15 and 15 Pro: Imaging tech examined: Digital Photography Review
Here are the detailed camera specs of the iPhone 15 series - news
iPhone 15 Pro's overheating issues can't be resolved without dialing down performance apparently : r/iphone
Apple Announces iPhone 13 Series: A15, New Cameras, New Screens
iPhone 15 Camera Rumors: Bigger Zoom, Bigger Sensors - CNET