I tested the iPhone 18 Pro Max vs. iPhone 16 Pro Max side-by-side: Should you upgrade?

In late summer, many iPhone users ponder whether it's time for an upgrade. As part of my investigation, I pitted the iPhone 18 Pro Max against the iPhone 16 Pro Max in a head-to-head comparison. While the two-year interval between models might persuade some 16 Pro Max owners to jump ship, my general recommendation is to wait for at least three years.

The iPhone 16 Pro Max earned praise in our review for features such as Camera Control, a spacious 6.9-inch Super Retina XDR display, and Apple Intelligence, plus the final 5x optical telephoto lens. Our iPhone 18 Pro Max review delves deeper, highlighting upgrades like a new variable-aperture main camera, the 2nm A20 Pro silicon, and next-gen Siri AI.

But does a two-year cycle provide enough of a leap to warrant trading in your beloved flagship? Let's break down the specifications. The iPhone 18 Pro Max and iPhone 16 Pro Max share a 6.9-inch Super Retina XDR display, a 12GB RAM, and IP68 ratings. The 18 Pro Max's camera system boasts a 48MP main sensor with variable aperture, a 2x optical zoom in the telephoto lens, and native Pro Controls for manual adjustments.

The 16 Pro Max, on the other hand, features a 48MP main sensor, a 5x optical zoom in the telephoto lens, and Center Stage camera. Both phones offer similar battery capacities and charging speeds. When it comes to cameras, both devices deliver impressive results in broad daylight, handling highlights and shadows effectively. At 4x zoom, the iPhone 18 Pro Max shows a slight edge, capturing finer details like bricks and graffiti with more definition.

However, at longer zoom levels of 40x, both cameras manage to resolve individual bricks around graffiti, showcasing their ability to maintain clarity. While the iPhone 18 Pro Max's hardware upgrades and Pro Controls offer a compelling case for an upgrade, the performance difference may not be enough to justify trading in your iPhone 16 Pro Max.