Apple's iPhone 12 and iPhone 12 Pro have proven themselves, and are Apple's best year-over-year iPhone upgrades yet — not including the future impact of 5G.
iPhone 13 vs. iPhone 12: Which iPhone Is Right for You?
iPhone 13 Pro Max vs iPhone 12 Pro Max - PhoneArena
Review: iPhone 12 and iPhone 12 Pro are massive upgrades, even not including 5G
Apple Inc.: iPhone 12 Pro review: Apple has upped 'Pro game' with better, low-light photography & performance - The Economic Times
iPhone 13 Pro and 13 Pro Max Review: Improvements All Around
iPhone 15 Pro Max Review - 2 Weeks Later - Mark Ellis Reviews
First Impressions of Apple's New iPhone 15 Pro Max and Watch Ultra 2 : r/apple
Apple iPhone 12 Pro review
iPhone 15 Pro's Next-Gen Chip Capabilities Expected to Spark Upgrade Demand Among Current iPhone Owners : r/apple