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Head-to-head · every figure from Apple’s own specifications

iPhone 18 Pro Max vs iPhone 17 Pro Max

One generation apart: every figure Apple publishes for both, side by side. 1 headline measure favours the iPhone 18 Pro Max and 1 the iPhone 17 Pro Max, and 4 specifications differ outright. Written for the people who buy phones by the dozen rather than one at a time: what changed, what it changes about a rollout, and what it does not.

Bottom line. iPhone 18 Pro Max suits field and lone-worker teams, volume fleets and shared devices, international travel and roaming, marketing, site records and content. iPhone 17 Pro Max suits one-handed, all-day carry. Apple publishes no benchmark scores for either phone, so nothing here claims one is “faster”.

iPhone 18 Pro Max, right, alongside iPhone 18 Pro — the 6.9-inch and 6.3-inch displays
Apple · Pro Max
iPhone 18 Pro Max
A20 Pro6.943 h video249 gFace IDup to 2TB
Current generation
VS
iPhone 17 Pro Max in its three finishes, rear view
Apple · Pro Max
iPhone 17 Pro Max
A19 Pro6.937 h video231 gFace IDup to 2TB
Previous generation
01 — What actually differs

4 specifications that are not the same

Everything below is a line Apple publishes for both phones. Anything the two share — and most of the specification is shared — is in the full table further down.

A20 Pro replaces A19 Pro — the graphics go from “6-core GPU with Neural Accelerators” to “7-core GPU with Neural Accelerators”, and the Neural Engine from “16-core Neural Engine” to “Dual 16-core Neural Engine”. Apple publishes no benchmark for either, so how much of that reaches a user depends entirely on the apps.
Video playback goes from 37 hours to 43 — up 6 hours (16%) on Apple’s own measure.
Weight changes by 18 g (249 g against 231 g).
The main camera gains a variable aperture (ƒ/1.48, ƒ/1.8, ƒ/2.8 and ƒ/4.0).
02 — Scoreboard

The measures that decide it

Each row is a figure Apple publishes for both. Bars show the split; the badge marks the larger number, which is not always the better buy — a lighter phone and a smaller screen are the same fact stated twice.

43 hrsHigher
Video playback
Apple’s own figure, same test
37 hrs
249 g
Weight
Lighter231 g
6.9″
Screen size
6.9″
116.7 cm²
Usable screen area
calculated from the diagonal and the pixel aspect ratio
116.7 cm²
8.75 mm
Thickness
8.75 mm
Up to 2TB
Capacity
Up to 2TB
3000 nits
Peak brightness outdoors
3000 nits
Longest optical zoom
18 MP
Front camera
18 MP
10 Gb/s
Wired transfer
10 Gb/s
03 — In the hand

Both phones, drawn to the same scale

Outlines plotted from Apple’s published millimetres, at one scale, so the difference is the real one rather than two press photographs cropped to the same height.

78 × 163.4 mm8.75 mm thick · 249 giPhone 18 Pro Max78 × 163.4 mm8.75 mm thick · 231 giPhone 17 Pro Max50 mm, true to scalea vs b

Usable screen area

iPhone 18 Pro Max116.7 cm²iPhone 17 Pro Max116.7 cm²Calculated from Apple’s diagonal and pixel aspect ratio
iPhone 18 Pro MaxiPhone 17 Pro Max
04 — Front, back and finishes

What you are actually handing to staff

Apple’s own product photography for both models — finishes, the back of each phone, and the details that differ. Every image here is Apple’s, unedited.

iPhone 18 Pro Max

iPhone 18 Pro Max, right, alongside iPhone 18 Pro — the 6.9-inch and 6.3-inch displays
iPhone 18 Pro Max, right, alongside iPhone 18 Pro — the 6.9-inch and 6.3-inch displays
Burgundy — one of the four finishes offered on both iPhone 18 Pro Max and iPhone 18 Pro
Burgundy — one of the four finishes offered on both iPhone 18 Pro Max and iPhone 18 Pro
Black — offered on both iPhone 18 Pro Max and iPhone 18 Pro
Black — offered on both iPhone 18 Pro Max and iPhone 18 Pro
Glacier — offered on both iPhone 18 Pro Max and iPhone 18 Pro
Glacier — offered on both iPhone 18 Pro Max and iPhone 18 Pro
The 48MP Pro Fusion camera system, shared by iPhone 18 Pro Max and iPhone 18 Pro
The 48MP Pro Fusion camera system, shared by iPhone 18 Pro Max and iPhone 18 Pro
The aluminium unibody and Ceramic Shield back of the iPhone 18 Pro range
The aluminium unibody and Ceramic Shield back of the iPhone 18 Pro range

iPhone 17 Pro Max

iPhone 17 Pro Max in its three finishes, rear view
iPhone 17 Pro Max in its three finishes, rear view
The rear camera system shared by the iPhone 17 Pro and 17 Pro Max
The rear camera system shared by the iPhone 17 Pro and 17 Pro Max
05 — Verdict

Which one, and why

Drawn from the measures above. Apple publishes no benchmark results for either phone, so nothing here claims one is faster than the other — only what each one is documented to do.

Choose the iPhone 18 Pro Max if…

  • Video playback: 43 hrs against 37 hrs.
  • Fits best for field and lone-worker teams, volume fleets and shared devices, international travel and roaming and marketing, site records and content — a full shift away from a charger with satellite SOS behind it.

Choose the iPhone 17 Pro Max if…

  • Weight: 231 g against 249 g.
  • Fits best for one-handed, all-day carry — weight and thickness for staff who carry a phone in a pocket for ten hours.
06 — By the job it has to do

Where each one pulls ahead

Seven ways a business actually deploys phones. Each call is made on published specifications only, with the figures behind it shown — no opinion about how the screens look.

Field and lone-worker teams43 vs 37 hours of video playback, satellite SOS vs satellite SOS, IP68 vs IP6818 Pro Max
Executives and client-facing staff116.7 cm² vs 116.7 cm² of screen, 18MP vs 18MP front cameraLevel
Volume fleets and shared devicesPro Max vs Pro Max tier, 43 vs 37 hours, 249 g vs 231 g18 Pro Max
International travel and roamingnano-SIM + eSIM vs nano-SIM + eSIM18 Pro Max
Marketing, site records and content8× optical vs 8× optical, ProRes yes vs yes, variable aperture on the iPhone 18 Pro Max only18 Pro Max
Replacing a second screen on the road116.7 cm² vs 116.7 cm²Level
One-handed, all-day carry249 g vs 231 g, 8.75 mm vs 8.75 mm thick17 Pro Max
07 — The data

Battery, zoom, capacity and where the chips sit

Four charts drawn from the same specification files as the tables below, on shared axes so the two ranges can be read against each other.

Battery, on Apple’s own tests

iPhone 18 Pro Max43 h video38 h streamediPhone 17 Pro Max37 h video33 h streamedApple’s published figures, same test for every model

Optical zoom

0.5×1×2×4×8×iPhone 18 Pro Max8× longestiPhone 17 Pro Max8× longest

Capacity

256GB512GB1TB2TB18 Pro Max2TB ceiling17 Pro Max2TB ceiling

Where each chip sits in the line

A15 BioniciPhone 13A16 BioniciPhone 14A17 ProiPhone 15A18 ProiPhone 16A19 ProiPhone 1717 Pro MaxA20 ProiPhone 1818 Pro MaxApple ships one iPhone generation a year — the gap here is the gap in years
08 — For whoever manages them

The differences that reach IT, not the user

Enrolment, SIM provisioning, unlock policy and the software clock — the things that decide whether a model can actually be rolled out, and the ones a spec sheet buries.

SIM and provisioning

iPhone 18 Pro MaxDual SIM (two active eSIMs, or nano-SIM and eSIM) Dual eSIM support Supports advanced eSIM technology for more convenience and security.
iPhone 17 Pro MaxDual SIM (two active eSIMs, or nano-SIM and eSIM) Dual eSIM support Supports advanced eSIM technology for more convenience and security

Both enrol the same way in Apple Business Manager; what differs is whether a physical SIM is an option when a carrier or a country is not eSIM-ready.

Unlock method

iPhone 18 Pro MaxFace ID — Enabled by TrueDepth technology in the Center Stage front camera
iPhone 17 Pro MaxFace ID — Enabled by TrueDepth technology in the Center Stage front camera

Face ID and Touch ID satisfy the same MDM passcode policies; the practical difference is gloves, masks and shared-device handover.

Water and dust

iPhone 18 Pro MaxRated IP68 (maximum depth of 6 metres up to 30 minutes) under IEC standard 60529
iPhone 17 Pro MaxRated IP68 (maximum depth of 6 metres up to 30 minutes) under IEC standard 60529

Apple’s rating is tested in laboratory conditions and is not permanent — it is not a substitute for a rugged case on a site fleet.

Safety features

iPhone 18 Pro MaxEmergency SOS via satellite, Roadside Assistance via satellite, Crash Detection
iPhone 17 Pro MaxEmergency SOS via satellite, Roadside Assistance via satellite, Crash Detection

Satellite features are the reason many lone-worker policies now specify a recent iPhone rather than any smartphone.

Wired transfer

iPhone 18 Pro MaxUSB-C Supports USB 3 (up to 10Gb/s)
iPhone 17 Pro MaxUSB-C Supports USB 3 (up to 10Gb/s)

A 10Gb/s port matters where devices are imaged, backed up or evidence-collected over cable rather than over the air.

Wireless

iPhone 18 Pro MaxWi-Fi 7 · Bluetooth 6
iPhone 17 Pro MaxWi-Fi 7 · Bluetooth 6

Wi-Fi generation decides how a device behaves on a busy corporate WLAN long before it decides raw speed.

Software generation

iPhone 18 Pro MaxiOS 27 at launch
iPhone 17 Pro MaxiOS 26 at launch

Both run the current iOS. The older model simply started its update life earlier, which is the clock a fleet should be planned against.

09 — Specifications

Side by side, differences first

Every line Apple publishes for both phones, in Apple’s own grouping and wording. The default view hides the rows where the two are identical.

Size and weight

iPhone 18 Pro MaxiPhone 17 Pro Max
Weight249 grams (8.78 ounces)231 grams (8.15 ounces)

Chip

iPhone 18 Pro MaxiPhone 17 Pro Max
A20 Pro chipA19 Pro chip
6-core CPU with 2 super cores and 4 efficiency cores6-core CPU with 2 performance and 4 efficiency cores
7-core GPU with Neural Accelerators6-core GPU with Neural Accelerators
Dual 16-core Neural Engine16-core Neural Engine

Rear cameras

iPhone 18 Pro MaxiPhone 17 Pro Max
48MP Fusion Main with variable aperture 48MP Fusion Ultra Wide 48MP Fusion Telephoto48MP Fusion Main 48MP Fusion Ultra Wide 48MP Fusion Telephoto
ƒ/1.48, ƒ/1.8, ƒ/2.8, ƒ/4.0 variable aperture options (Fusion Main)
Pro controls for lens aperture, shutter speed, white balance and viewing histogram
Photographic Styles 3Photographic Styles 2
Smart focus tracking
Apple Reference Image (Fusion Main)

Video recording

iPhone 18 Pro MaxiPhone 17 Pro Max
Cinematic mode for recording videos with shallow depth of field (up to 4K Dolby Vision at 60 fps)Cinematic mode for recording videos with shallow depth of field (up to 4K Dolby Vision at 30 fps)
Cinematic mode effects from video
Pro controls for lens aperture, shutter speed, white balance and viewing histogram
Smart focus tracking
Improved low-light video
Time-lapse video recording with stabilisation up to 4K Dolby Vision

Front camera

iPhone 18 Pro MaxiPhone 17 Pro Max
Tap to zoom and rotate
Photographic Styles 3Photographic Styles 2
Smart focus tracking
Improved low-light video
Cinematic mode effects from video
Time-lapse video recording with stabilisation up to 4K Dolby Vision

Power and battery

iPhone 18 Pro MaxiPhone 17 Pro Max
Up to 43 hoursUp to 37 hours
Up to 38 hoursUp to 33 hours
Up to 50% charge in around 15 minutes when using 60W-capable adapter or higher with Adjustable Voltage Supply (available separately) paired with USB-C charging cableUp to 50% charge in 20 minutes with 40W adapter or higher (available separately) paired with USB-C charging cable
Up to 50% charge in 30 minutes with 35W adapter or higher paired with MagSafe Charger (both available separately)Up to 50% charge in 30 minutes with or higher paired with MagSafe Charger (both available separately) 30W adapter

Mobile and wireless

iPhone 18 Pro MaxiPhone 17 Pro Max
Express Cards with power reserveExpress Cards with Power Reserve

SIM

iPhone 18 Pro MaxiPhone 17 Pro Max
Dual SIM (two active eSIMs, or nano-SIM and eSIM) Dual eSIM support Supports advanced eSIM technology for more convenience and security.Dual SIM (two active eSIMs, or nano-SIM and eSIM) Dual eSIM support Supports advanced eSIM technology for more convenience and security
10 — Questions

iPhone 18 Pro Max vs iPhone 17 Pro Max, answered

What is the real difference between the iPhone 18 Pro Max and the iPhone 17 Pro Max?

A20 Pro replaces A19 Pro — the graphics go from “6-core GPU with Neural Accelerators” to “7-core GPU with Neural Accelerators”, and the Neural Engine from “16-core Neural Engine” to “Dual 16-core Neural Engine”. Apple publishes no benchmark for either, so how much of that reaches a user depends entirely on the apps. Video playback goes from 37 hours to 43 — up 6 hours (16%) on Apple’s own measure. Weight changes by 18 g (249 g against 231 g).

Is the iPhone 18 Pro Max worth upgrading to from the iPhone 17 Pro Max for business use?

That depends on what the phones are used for. The iPhone 18 Pro Max leads on field and lone-worker teams, volume fleets and shared devices, international travel and roaming and marketing, site records and content. The iPhone 17 Pro Max still leads on one-handed, all-day carry. Battery is the figure most fleets feel: 43 hours against 37 on Apple's own video-playback test.

Which has better battery life, the iPhone 18 Pro Max or the iPhone 17 Pro Max?

Apple quotes up to 43 hours of video playback for the iPhone 18 Pro Max and up to 37 hours for the iPhone 17 Pro Max — a 16% difference on the same test. Streamed video, which is closer to real use, is 38 hours against 33.

Can both be managed and enrolled the same way?

Yes. Both are enrolled through Apple Business Manager with automated device enrolment and managed by whichever MDM you already run, and both take the same configuration profiles. The differences that affect IT are the unlock method (Face ID against Face ID) and how long each will keep receiving iOS feature updates.

How long will each one keep getting iOS updates?

Apple does not publish a support end date for any iPhone. What history shows is roughly five to seven years of iOS releases from launch, which puts the iPhone 17 Pro Max 1 generation further through that window than the iPhone 18 Pro Max. Plan a fleet on the older model's clock, not the newer one's.

Where these figures come from. Every specification on this page is taken from Apple’s own published material — iPhone 18 Pro Max specifications and iPhone 17 Pro Max specifications, cross-checked against Apple’s compare tool, captured 12 September 2026. Screen areas and percentage differences are calculated from those figures. This is a specification comparison only: nothing here is a benchmark, a price or a statement about stock.

Other iPhone comparisons

Buying for a team rather than a person? The same approach applies to laptops — see the business laptop finder, the hardware refresh planner for what a phone and laptop cycle costs together, and every other comparison we publish.

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