iPhone 15 Pro and iPhone 15 Pro Max weight could be slightly lower than the iPhone 14 Pro and iPhone 14 Pro Max. These handsets are tipped to feature a titanium chassis instead of stainless steel used on the iPhone 14 Pro and earlier handsets, which means they could be lighter than the earlier Pro models, according to a report.

source https://www.gadgets360.com/mobiles/news/iphone-15-pro-max-titanium-weight-lighter-apple-stainless-steel-models-report-4335697#rss-gadgets-all