iPhone 18 Pro Max vs iPhone 17 Pro Max: What's Actually Different

The iPhone 18 Pro Max just landed, and the iPhone 17 Pro Max is no longer sold new by Apple. If you're weighing up a remaining iPhone 17 Pro Max against the new iPhone 18 Pro Max, here's a plain-English breakdown of what's actually different, so you can decide if the upgrade is worth it.

The Camera: Sharper, More Flexible Shots

Like the standard Pro, the iPhone 18 Pro Max gets a variable aperture main camera, meaning it can physically open and close like a real camera lens instead of staying fixed. In practice, that means better low-light photos and a softer, more natural blur behind your subject in portraits.

One honest note: if you rely on zoom a lot, the telephoto camera hasn't changed. Both phones offer the same 4x optical zoom, so you won't get extra reach by upgrading, just a better main camera.

Battery Life: An Even Bigger Jump on the Max

The Pro Max gets Apple's largest battery improvement yet, and it's bigger than the standard Pro's gain. Rated video playback goes up by around six hours, from about 39 hours on the iPhone 17 Pro Max to around 45 hours on the iPhone 18 Pro Max. That's a meaningful difference if you're a heavy user who's always chasing a charger by evening.

Charging is also quicker, reaching a partial charge noticeably faster with a compatible fast charger than the 17 Pro Max.

Speed: Faster, But You May Not Notice

The iPhone 18 Pro Max runs on Apple's new A20 Pro chip, built using a newer, smaller manufacturing process (2 nanometres, down from 3nm on the 17 Pro Max's chip). In plain terms, more power in a similar amount of space, without draining the battery faster. Apple says it's up to 18% faster and up to 30% more power efficient than the chip in the 17 Pro Max.

Most people browsing, messaging, and using social media won't notice much day to day. If you're into mobile gaming or editing 4K video on your phone, you'll feel the difference more.

Apple also redesigned the internal cooling system with a much larger vapor chamber, so the phone stays cooler and performs more consistently during long, demanding sessions.

Design: Familiar, But Slightly Heavier

The iPhone 18 Pro Max is exactly the same size as the iPhone 17 Pro Max, so cases and accessories should still fit. It is noticeably heavier though, about 18 grams more, which is a bigger jump than the standard Pro saw this year. You'll likely feel this if you're holding the phone for long periods.

New colour options include Black, Silver, Glacier Blue, and Burgundy.

Display: Practically Identical

Both phones share the same 6.9-inch display, with the same sharpness, brightness, and smooth-scrolling refresh rate. There's no bigger or better-looking screen on the 18 Pro Max.

The one visible change is a smaller Dynamic Island (the notch at the top), which now fits a little more on screen and can show up to three Live Activities at once instead of two, useful if you're tracking a delivery and a timer at the same time, for example.

Storage: More Room at the Top End

Both phones start at the same 256GB, which covers most people comfortably. If you shoot a lot of 4K video or carry a large photo library, the iPhone 18 Pro Max now goes up to 2TB, double the top storage size available on the iPhone 17 Pro Max.

Every Spec That Changed, Grouped

If you want the raw numbers behind everything above, here's the full breakdown, grouped by category:

The biggest real-world change here is the camera's variable aperture, and the battery capacity jump: up about 11.7%, a much bigger increase than the standard Pro's 1.7%, which lines up with the Pro Max seeing the larger real-world battery life improvement too.

Frequently Asked Questions

Is the iPhone 17 Pro Max still worth buying?

Yes. It's no longer sold new by Apple, but it remains a genuinely excellent large-screen phone. If you don't specifically need the 18 Pro Max's camera and battery upgrades, you're not missing much.

What colours does the iPhone 18 Pro Max come in?

Black, Silver, Glacier Blue, and Burgundy.

Does the iPhone 18 Pro Max have a bigger screen?

No, both phones have the same 6.9-inch display size and quality. The only visible change is a slightly smaller Dynamic Island on the 18 Pro Max.

Does the iPhone 18 Pro Max zoom further than the 17 Pro Max?

No, the telephoto camera is unchanged between the two. Both offer the same 4x optical zoom range.

How much more storage does the iPhone 18 Pro Max offer?

Both start at 256GB, but the 18 Pro Max adds a 2TB option at the top end, double the iPhone 17 Pro Max's 1TB maximum.

So, Which One Should You Get?

The iPhone 18 Pro Max costs more than the iPhone 17 Pro Max did at launch, and the gap is bigger than what the standard Pro saw this year. So it's worth being clear-eyed about what you're paying extra for: a better main camera, noticeably longer battery life, and a bit more headroom under heavy use.

If those matter to you, or you want the only Pro Max Apple currently sells new, go with the iPhone 18 Pro Max. If you'd rather save money and the iPhone 17 Pro Max is still in stock, it remains an excellent large-screen phone that does almost everything the 18 Pro Max does.

Ready to see both for yourself? Check current pricing and availability on each product page:

• Shop the iPhone 17 Pro Max
• Shop the iPhone 18 Pro Max