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MobileIQ

Head to head

Apple iPhone 18 Pro MaxvsApple iPhone 17 Pro Max

The short answer

Choose the iPhone 18 Pro Max for video playback time. The iPhone 17 Pro Max wins no row by a gap you’d notice. The iPhone 17 Pro Max is £100 cheaper at UK RRP (£1,199 against £1,299). Apple publishes no date for either; its record with retired iPhones points to 2033–2037 for the iPhone 18 Pro Max and 2032–2036 for the iPhone 17 Pro Max, our estimate, not Apple’s.

Price
£1,299Apple UK store, retrieved 2026-09-10
Security updates until
Not published by the makerendoflife.date — iPhone, retrieved 2026-09-10
Released
2025-09-19endoflife.date, retrieved 2026-08-19
Price
£1,199Apple UK store, retrieved 2026-08-19
Security updates until
Not published by the makerendoflife.date — iPhone, retrieved 2026-08-19

1 win for iPhone 18 Pro Max0 wins for iPhone 17 Pro Max3 gaps borderline0 differences you won’t notice£100 apart at RRP

Verdict: iPhone 18 Pro Max ahead on 1 row, iPhone 17 Pro Max on none

On the makers’ published figures, the iPhone 18 Pro Max wins on claimed video playback (43 h against 37 h). 3 gaps are borderline, differences most people would not notice: weight (231 g against 249 g) for the iPhone 17 Pro Max, battery capacity (5,391 mAh against 4,823 mAh, both from GSMArena) for the iPhone 18 Pro Max and fast charging (60 W against 40 W) for the iPhone 18 Pro Max. Both state the same display size, refresh rate, peak brightness, typical brightness, HDR peak brightness, storage (base), RAM and wireless charging. The other 36 rows have no threshold or no direction to judge by, so nobody wins them.

True to scale

iPhone 18 Pro Max · 163.4 × 78.0 mmiPhone 17 Pro Max · 163.4 × 78 mm

Outlines from each maker’s published dimensions, drawn to scale. Corner rounding is our drawing convention, not a measurement.

Specifications

A win is marked only where the figures can be ranked and the gap is one you could notice. A row the site has no threshold for says whether the two differ, and that it is not ranking them. = marks the same figure on both, ≠ not ranked a difference with no ranking. Every figure carries its source.

Body

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
DimensionsDiffers, but not ranked.
163.4 x 78.0 x 8.75 mmOfficial
163.4 x 78 x 8.75 mmOfficial
Weight

Marginal — most people won’t notice.

BuildSame.
Aluminium unibody design, Ceramic Shield 2 front, Ceramic Shield backOfficial
Aluminium unibody design, Ceramic Shield 2 front, Ceramic Shield backOfficial
SIMDiffers, but not ranked.
Dual SIM (nano-SIM and eSIM)Official
Dual SIM (nano-SIM and eSIM); Dual eSIM supportOfficial
Water/dust ratingSame.
UnlockSame.
Face ID (TrueDepth camera)Official
Face ID (TrueDepth camera)Official

Display

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
Display typeSame.
Super Retina XDR OLED, Always-On, HDR, True Tone, Wide colour (P3)Official
Super Retina XDR OLED, Always-On, HDR, True Tone, Wide colour (P3)Official
Display sizeSame.
ResolutionSame.
2868 x 1320Official
2868 x 1320Official
Pixel densitySame.
460ppiOfficial
460ppiOfficial
Refresh rateSame.
Peak brightnessSame.
3000nitsOfficial
3000nitsOfficial
Typical brightnessSame.
1000nitsOfficial
1000nitsOfficial
HDR peak brightnessSame.
1600nitsOfficial
1600nitsOfficial
Screen protectionSame.
Ceramic Shield 2 frontOfficial
Ceramic Shield 2 frontOfficial

Platform

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
Operating systemDiffers, but not ranked.
iOS 27Official
iOS 263rd party
OS versions supportedDiffers, but not ranked.
iOS 27Official
iOS 26 to iOS 27Official
ChipsetDiffers, but not ranked.
A20 Pro chipOfficial
A19 Pro chipOfficial
CPUDiffers, but not ranked.
6-core CPU with 2 super cores and 4 efficiency coresOfficial
6-core CPU with 2 performance and 4 efficiency coresOfficial
GPUDiffers, but not ranked.
7-core GPU with Neural AcceleratorsOfficial
6-core GPU with Neural AcceleratorsOfficial

Memory

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
Storage (base)Same.
Storage optionsSame.
256GB/512GB/1TB/2TBOfficial
256GB/512GB/1TB/2TBOfficial
RAMSame.
Card slotSame.

Camera

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
Main cameraDiffers, but not ranked.
48MP Pro Fusion camera system: 48MP Fusion Main 24mm with variable aperture (f/1.48, f/1.8, f/2.8, f/4.0) and second-generation sensor-shift OIS; 48MP Fusion Ultra Wide 13mm f/2.2; 48MP Fusion Telephoto 100mm (4x) f/2.8 with 3D sensor-shift OIS; 8x optical-quality zoom in, 2x optical zoom out; digital zoom up to 40xOfficial
48MP Pro Fusion camera system: 48MP Fusion Main 24mm f/1.78 with second-generation sensor-shift OIS; 48MP Fusion Ultra Wide 13mm f/2.2 120°; 48MP Fusion Telephoto 100mm 4x f/2.8 tetraprism; Fusion Main also enables 12MP optical-quality 2x Telephoto 48mm f/1.78; Fusion Telephoto also enables 12MP optical-quality 8x Telephoto 200mm f/2.8Official
Main sensor resolutionSame.
Main apertureDiffers, but not ranked.
f/1.48 to f/4.0 (variable)Official
f/1.78Official
Main sensor sizeSame.
1/1.28"3rd party
1/1.28"3rd party
TelephotoDiffers, but not ranked.
48MP Fusion Telephoto, 100mm (4x), f/2.8, 3D sensor-shift optical image stabilisationOfficial
48MP Fusion Telephoto, 100mm (4x), f/2.8, tetraprism, 3D sensor-shift OIS; also enables 12MP optical-quality 8x Telephoto 200mm f/2.8Official
UltrawideDiffers, but not ranked.
48MP Fusion Ultra Wide, 13mm, f/2.2Official
48MP Fusion Ultra Wide, 13mm, f/2.2, 120° field of viewOfficial
Front cameraSame.
18MP Center Stage, f/1.9 aperture, autofocus with Focus PixelsOfficial
18MP Center Stage, f/1.9 aperture, autofocus with Focus PixelsOfficial
Video captureDiffers, but not ranked.
4K Dolby Vision at 24, 25, 30, 60, 100 (Fusion Main) or 120 fpsOfficial
4K Dolby Vision at 24, 25, 30, 60, 100 or 120 fps (Fusion Main)Official

Battery

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
Battery capacity
5391mAh3rd party
4823mAh3rd party

Marginal — most people won’t notice.

Battery per charge
No verified data
Claimed video playback
43hOfficialwins this row

iPhone 18 Pro Max is ahead here, by a gap you’d notice.

Battery lifespan
No verified data
1000cyclesOfficial
Fast charging

Marginal — most people won’t notice.

Wireless chargingSame.

Connectivity

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
Wi-FiSame.
Wi-Fi 7 (802.11be) with 2x2 MIMOOfficial
Wi-Fi 7 (802.11be) with 2x2 MIMOOfficial
BluetoothSame.
USBSame.
USB-C, USB 3 (up to 10Gb/s), DisplayPortOfficial
USB-C, USB 3 (up to 10Gb/s), DisplayPortOfficial
NFCSame.
PositioningSame.
Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou and NavIC)Official
Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou and NavIC)Official

Benchmarks

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
Geekbench 6 (CPU, multi-core)
No verified data
3DMark Wild Life Extreme
No verified data

Misc

SpecificationApple iPhone 18 Pro MaxApple iPhone 17 Pro Max
ColoursDiffers, but not ranked.
Black, Silver, Glacier, BurgundyOfficial
Silver, Cosmic Orange, Deep BlueOfficial
SAR (EU, head)
No verified data
1.49W/kg3rd party
Repairability (EU class)
No verified data
3 attributes neither phone has a sourced figure for

Google Mobile Services · AnTuTu benchmark · DXOMARK camera score. Rows appear as sources are cited — a gap in our data, not a statement about either phone.

Questions

Is the iPhone 18 Pro Max better than the iPhone 17 Pro Max?

On the figures, the iPhone 18 Pro Max is ahead wherever there is a gap you’d notice: claimed video playback, 43 h against 37 h (both Apple UK). The iPhone 17 Pro Max wins no row by such a gap. That is a count of rows, not an overall score.

Which has the better battery?

The iPhone 18 Pro Max, by a gap you’d notice: claimed video playback, 43 h against 37 h (both Apple UK). The iPhone 18 Pro Max is ahead, narrowly: battery capacity, 5,391 mAh against 4,823 mAh (both GSMArena), a borderline gap most people would not notice.

Which is lighter?

The iPhone 17 Pro Max is lighter, narrowly: weight, 231 g against 249 g (both Apple UK), a borderline gap most people would not notice.

Which has the brighter screen?

Neither: both state 3,000 nits for peak brightness (Apple UK). Both state 1,000 nits for typical brightness (Apple UK). Both state 1,600 nits for HDR peak brightness (Apple UK).

Which gets updates for longer?

Apple publishes no date for either; its record with retired iPhones points to 2033–2037 for the iPhone 18 Pro Max and 2032–2036 for the iPhone 17 Pro Max, our estimate, not Apple’s. Sources: Apple’s record from endoflife.date and Apple security releases.

Which is cheaper?

The iPhone 17 Pro Max is £100 cheaper at UK RRP (£1,199 against £1,299). Prices from iPhone 18 Pro Max: Apple UK store; iPhone 17 Pro Max: Apple UK store.

The pairs a buyer of either phone would also weigh. Any two phones in the catalogue can be compared from the chooser.