I tested the iPhone 18 Pro Max vs. iPhone 16 Pro Max side-by-side: Should you upgrade?
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Around this time of year, many iPhone owners ask themselves the same question: is it time to upgrade? That’s what I set out to answer in my iPhone 18 Pro Max vs. iPhone 16 Pro Max face-off. The two-year gap between models might tempt some current 16 Pro Max owners to make the jump, even though I generally recommend waiting at least three years.
In our iPhone 16 Pro Max review, we highlighted standout additions like Camera Control, an expansive 6.9-inch Super Retina XDR display, and Apple Intelligence right out of the box — along with what turned out to be the lineup’s final 5x optical telephoto lens.
Fast-forward two years, and there are even more substantial changes detailed in our iPhone 18 Pro Max review, including a new variable-aperture main camera, the 2nm A20 Pro silicon, and next-gen Siri AI. But does a two-year cycle offer enough of a generational leap to justify retiring your trusty flagship?
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iPhone 18 Pro Max vs. iPhone 16 Pro Max: Specifications
| Header Cell – Column 0 | iPhone 18 Pro Max | iPhone 16 Pro Max |
|---|---|---|
Price | From $1,299 | From $1,199* |
Main Display | 6.9-inch Super Retina XDR display (2,868 x 1,320) | 6.9-inch Super Retina XDR display (2,868 x 1,320) |
Refresh Rate | 1-120Hz ProMotion | 1-120Hz ProMotion |
Processor | A20 Pro | A18 Pro |
Storage | 256GB, 512GB, 1TB, 2TB | 256GB, 512GB, 1TB |
RAM | 12GB | 12GB |
Front Camera | 18MP Center Stage camera (f/1.9) | 12MP (f/1.9) |
Rear Cameras | 48MP main with variable aperture (f/1.48, f/1.8, f/2.8, f/4), 48MP ultrawide (f/2.2), 48MP telephoto w/4x optical zoom (f/2.8) | 48MP main (f/1.78), 48MP ultrawide (f/2.2), 12MP telephoto w/5x optical zoom (f/2.8) |
Battery Capacity | 5,391 mAh | 4,685 mAh |
Charging | 60W wired, 25W wireless | 30W wired, 25W wireless |
Size | 6.43 x 3.07 x 0.34 inches (163.4 x 78.0 x 8.75 mm) | 6.42 x 3.06 x 0.32 inches (163 x 77.6 x 8.25 mm) |
Weight | 8.78 ounces (249 grams) | 8 ounces (227 grams) |
IP Rating | IP68 | IP68 |
Colors | Black, Silver, Glacier, Burgundy | Black, White, Desert, Natural Titanium |
iPhone 18 Pro Max vs. iPhone 16 Pro Max: Cameras
Let me cut to the chase and focus on what matters most in this matchup: the cameras. There are several significant hardware leaps that make a compelling case for the iPhone 18 Pro Max. First and foremost is the new 48MP main sensor featuring a mechanical variable aperture, giving photographers physical control over how much light hits the sensor.
That means more natural, optical bokeh without relying solely on software processing, along with the creative flexibility to dial in motion blur on fast-moving subjects or stop down to keep large group shots in razor-sharp focus from front to back.
(Image credit: Tom’s Guide)
The iPhone 18 Pro Max also boasts a faster maximum f/1.48 aperture, handing the new iPhone an inherent hardware advantage in challenging low-light conditions. Up front, you get an upgraded 18MP Center Stage selfie camera, a noticeable bump over the 16 Pro Max’s 12MP shooter. Even though the telephoto reach remains at 5x optical zoom across both phones, the 16 Pro Max is clearly out-spec’d across the rest of the camera array.
Beyond the optics, the real game-changer for the 18 Pro Max is the addition of native Pro Controls — which I consider just as big an upgrade as the hardware itself. Having manual exposure, shutter speed, and focus tools baked right into the stock camera app is a massive workflow win, sparing you the hassle of jumping into third-party apps just to take full control of your shot.
Based on all the snapshots I captured, I wouldn’t say that the iPhone 18 Pro Max has an overwhelming advantage purely on performance. Well, not enough to convince me to upgrade. Here’s why.
(Image credit: Tom’s Guide)
The beachfront shot above proves my point exactly. Both cameras handle the scene admirably, balancing the highlights and shadows without blowing out the sky. They also resolve nearly identical detail throughout the frame, from the sign along the railing to the grassy dunes in the far background.
(Image credit: Tom’s Guide)
At 4x zoom, it’s pretty clear that the iPhone 18 Pro Max holds a significant advantage. Finer details around the apartment building, like the bricks and graffiti, look sharper with more definition.
(Image credit: Tom’s Guide)
But when pushed to their outer limits — 40x on the iPhone 18 Pro Max and 25x on the 16 Pro Max — both manage to clearly resolve individual bricks surrounding the graffiti. Despite relying on an older 12MP sensor, the 16 Pro Max’s 5x optical reach holds its own, delivering enough clarity to closely match the 18 Pro Max’s upgraded 48MP telephoto shooter.
(Image credit: Tom’s Guide)
In broad daylight, both primary cameras consistently impress with wide dynamic range, crisp detail, and dependable color fidelity.
(Image credit: Tom’s Guide)
Speaking of dynamic range, you can see how cleanly shadows are lifted against the bright afternoon sky in my Bryant Park test shots above.
(Image credit: Tom’s Guide)
There are subtle variances in color reproduction: red bell peppers take on a deeper, punchier tone on the iPhone 18 Pro Max, though other shades across the Whole Foods produce display look nearly identical between the two.
(Image credit: Tom’s Guide)
Macro photography is well-handled on both handsets, provided you keep the phone steady and nail your focus point. That said, I give the nod to the 18 Pro Max for producing richer saturation and sharper petal textures.
(Image credit: Tom’s Guide)
Despite drastic lighting shifts across the panoramic scene, both phones stitch the frame cleanly into a seamless-looking panorama, balancing highlights and shadow areas to ensure an even final exposure.
(Image credit: Tom’s Guide)
For selfies, the iPhone 18 Pro Max’s new 18MP Center Stage camera delivers a noticeably wider field of view, making it ideal for group shots. Beyond that expanded framing, however, there’s very little difference in detail or processing to give the newer flagship a runaway victory.
(Image credit: Tom’s Guide)
When shooting in portrait mode, Apple’s subject-separation algorithms do an exceptional job cutting me out from the background while rendering a convincing, progressive optical falloff. Notice, for instance, how my foreground arm closest to the lens softens naturally into the blur.
iPhone 18 Pro Max vs. iPhone 16 Pro Max: Battery and charging
| Row 0 – Cell 0 | iPhone 18 Pro Max | iPhone 16 Pro Max |
Battery Size | 5,391 mAh | 4,685 mAh |
Battery Life (hours:minutes) | 18:27 | 17:38 |
Charging level in 15 minutes | 53% | 29% |
Charging level in 30 minutes | 80% | 55% |
Apple packs a substantially larger 5,391 mAh battery into the iPhone 18 Pro Max — roughly a 15% increase in capacity over the 4,685 mAh cell in the iPhone 16 Pro Max. While a bigger battery doesn’t always guarantee a proportional leap in endurance, our proprietary battery drain test proves it does yield real-world gains.
That extra capacity helped the iPhone 18 Pro Max average 18 hours and 27 minutes, outlasting the 16 Pro Max’s already impressive 17 hours and 38 minutes by nearly an hour. Still, across a two-year generational gap, that works out to a modest 4.63% improvement in overall endurance. Where you’ll notice a much more dramatic difference is charging speed.
Thanks to upgraded 60W wired charging, the iPhone 18 Pro Max nearly doubles the charging pace of its older ancestor. In just 15 minutes the 18 Pro Max reaches 53% compared to the 16 Pro Max’s 29%. By the 30-minute mark, the 18 Pro Max surges to 80%, while the 16 Pro Max trails at 55%.
iPhone 18 Pro Max vs. iPhone 16 Pro Max: Performance
Frankly, there has never been an instance where I felt an iPhone was sluggish. Still, looking across our suite of synthetic benchmarks, it is undeniable that the A20 Pro is significantly more capable than the A18 Pro.
In Geekbench 6, the iPhone 18 Pro Max clocked a single-core score of 4,741 and a multi-core mark of 12,789 — outpacing the 16 Pro Max (3,386 and 8,306) by 40% in single-core and an impressive 54% with multi-core.
| Row 0 – Cell 0 | iPhone 18 Pro Max | iPhone 16 Pro Max |
Chipset | A20 Pro | A18 Pro |
Geekbench 6 (single / multi-core) | 4,741 / 12,789 | 3,386 / 8,306 |
3DMark Solar Bay Unlimited (fps / score) | 67.9 fps / 17,850 | 28.1 fps / 7,396 |
While those numbers highlight a substantial CPU leap between generations, graphics testing is where the iPhone 18 Pro Max truly pulls away. Running 3DMark’s Solar Bay Unlimited test, the 18 Pro Max hit an average frame rate of 67.9 fps (17,850 score) versus the 16 Pro Max’s 28.1 fps (7,396 score) — representing a massive 141% surge in graphical performance.
iPhone 18 Pro Max vs. iPhone 16 Pro Max: Software and AI
Because both phones run iOS 27, they offer practically the same everyday experience, core tools, and customizations. That means foundational Apple Intelligence perks — including Clean Up photo editing, Reframe, and interactive polls in Messages — are available across both devices.
The arrival of Siri AI in iOS 27 signals a major shift for Apple, making the assistant far more proactive with broader automation. For instance, it intelligently suggests creating reminders or calendar entries when someone mentions an upcoming event in Messages.
I’ve also been genuinely impressed with Siri AI in CarPlay because it lets me tackle hands-free tasks I previously couldn’t manage safely, such as dictating quick impressions of a vehicle I’m testing from behind the wheel and reopening that same note later to add more details.
However, the most advanced Siri AI capabilities are exclusive to the iPhone 18 Pro Max and leave the iPhone 16 Pro Max behind. Specifically, Siri’s new Expressive Voices and the upgraded advanced dictation system require hardware that only six iPhone models currently possess. The former gives Siri a far more human, conversational cadence, while the latter dramatically enhances voice-to-text accuracy by smartly filtering out vocal filler words like “ums” and “ahs”.
Ultimately, the beauty of Apple’s software ecosystem is that the core user experience remains remarkably consistent across generations — even in a two-year flagship matchup like this one.
iPhone 18 Pro Max vs. iPhone 16 Pro Max: Displays
On paper, both flagships look evenly matched. Each sports an expansive 6.9-inch Super Retina XDR OLED display with a 120Hz ProMotion refresh rate that keeps animations looking buttery smooth. In the real world, however, the iPhone 18 Pro Max delivers an unmistakable visual upgrade the moment you step outdoors into direct sunlight.
In our lab testing, the iPhone 18 Pro Max reached an eye-searing 2,326 nits of peak brightness — the highest we’ve ever recorded on an iPhone, and a massive 68% jump over the iPhone 16 Pro Max’s 1,385 nits. The practical advantage is immediate: web pages, camera framing, and video playback remain effortlessly legible with far fewer washed-out reflections bouncing off the glass.
| Row 0 – Cell 0 | iPhone 18 Pro Max | iPhone 16 Pro Max |
Display | 6.9-inch Super Retina XDR display (2,868 x 1,320) | 6.9-inch Super Retina XDR display (2,868 x 1,320) |
Peak Brightness | 2,326 nits | 1,385 nits |
sRGB | 115.4% | 114.1% |
DCI-P3 | 81.8% | 80.9% |
Delta-E | 0.26 | 0.26 |
Another welcomed change is the redesigned Dynamic Island, featuring a noticeably more compact cutout on the iPhone 18 Pro Max. Apple also expanded its software utility, allowing up to three simultaneous Live Activities on the 18 Pro Max versus just two on the 16 Pro Max. While that extra Live Activity slot isn’t a massive game-changer on its own, pairing it with such an immensely brighter panel makes the display a decisive win for the 18 Pro Max.
iPhone 18 Pro Max vs. iPhone 16 Pro Max: Verdict
I know firsthand how enticing a shiny new phone can be, but even with a two-year gap between these flagships, the case to ditch the iPhone 16 Pro Max for the 18 Pro Max isn’t entirely convincing. That’s even harder to stomach knowing you’ll have to pay more out of pocket thanks to a $100 price hike that pushes the iPhone 18 Pro Max to $1,299.
In my testing, the biggest areas of improvement come down to the A20 Pro’s exceptional processing muscle, along with key camera additions like the variable aperture and native Pro Controls. Beyond that, there simply isn’t an overwhelming reason to justify making the leap.
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