Canon R5 vs 5D Mark III comparison in photography

I know Canon R5 is a great camera that facilitates the photo and video shooting with all its great functional options but still it's among the expensive cameras in the market and not everyone can afford to buy it. while I have both of Canon R5 and 5D Mark III, I can say, with some practice on using a manual cameras then 5D Mark III can be an ideal choice for a professional photography. I still enjoy the vintage touch of the photos I take with 5D Mark III and it gives you a very real result. nowadays we are surrounding by different high tech products and extraordinary advertisings about them, with very high prices, but sometimes we can find the older version of them working much more practical.