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MobileIQ

Head to head

Apple iPhone 18 ProvsApple iPhone 17

The short answer

Choose the iPhone 17 for lower weight. The iPhone 18 Pro wins no row by a gap you’d notice. The iPhone 17 is £400 cheaper at UK RRP (£799 against £1,199). Apple publishes no date for either; its record with retired iPhones points to 2033–2037 for the iPhone 18 Pro and 2032–2036 for the iPhone 17, our estimate, not Apple’s.

Price
£1,199Apple 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 2026-08-20
Price
£799Apple UK store, retrieved 2026-08-20
Security updates until
Not published by the makerendoflife.date — iPhone, retrieved 2026-08-20

0 wins for iPhone 18 Pro1 win for iPhone 174 gaps borderline1 difference you won’t notice£400 apart at RRP

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

On the makers’ published figures, the iPhone 17 wins on weight (177 g against 211 g). 4 gaps are borderline, differences most people would not notice: HDR peak brightness (1,600 nits against 1,200 nits) for the iPhone 18 Pro, RAM (12 GB against 8 GB, both from GSMArena) for the iPhone 18 Pro, claimed video playback (34 h against 30 h) for the iPhone 18 Pro and fast charging (60 W against 40 W) for the iPhone 18 Pro. The difference in battery capacity is below the threshold you would notice. Both state the same display size, refresh rate, peak brightness, typical brightness, storage (base) and wireless charging. The other 37 rows have no threshold or no direction to judge by, so nobody wins them.

True to scale

iPhone 18 Pro · 150.0 × 71.9 mmiPhone 17 · 149.6 × 71.5 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 ProApple iPhone 17
DimensionsDiffers, but not ranked.
150.0 x 71.9 x 8.75 mmOfficial
149.6 x 71.5 x 7.95 mmOfficial
Weight
177gOfficialwins this row

iPhone 17 is ahead here, by a gap you’d notice.

BuildDiffers, but not ranked.
Aluminium unibody design, Ceramic Shield 2 front, Ceramic Shield backOfficial
Aluminium design, Ceramic Shield 2 front, Colour-infused glass back (Black, Mist Blue, Sage, Lavender)Official
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 ProApple iPhone 17
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.
2622 x 1206Official
2622 x 1206Official
Pixel densitySame.
460ppiOfficial
460ppiOfficial
Refresh rateSame.
Peak brightnessSame.
3000nitsOfficial
3000nitsOfficial
Typical brightnessSame.
1000nitsOfficial
1000nitsOfficial
HDR peak brightness
1600nitsOfficial
1200nitsOfficial

Marginal — most people won’t notice.

Screen protectionSame.
Ceramic Shield 2 frontOfficial
Ceramic Shield 2 frontOfficial

Platform

SpecificationApple iPhone 18 ProApple iPhone 17
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 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
5-core GPU with Neural AcceleratorsOfficial

Memory

SpecificationApple iPhone 18 ProApple iPhone 17
Storage (base)Same.
Storage optionsDiffers, but not ranked.
256GB/512GB/1TB/2TBOfficial
256GB/512GBOfficial
RAM

Marginal — most people won’t notice.

Card slotSame.

Camera

SpecificationApple iPhone 18 ProApple iPhone 17
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 Dual Fusion camera system: 48MP Fusion Main 26mm f/1.6 with sensor-shift OIS; 48MP Fusion Ultra Wide 13mm f/2.2 120°; Fusion Main also enables 12MP optical-quality 2x Telephoto 52mm f/1.6Official
Main sensor resolutionSame.
Main apertureDiffers, but not ranked.
f/1.48 to f/4.0 (variable)Official
Main sensor sizeDiffers, but not ranked.
1/1.28"3rd party
1/1.56"3rd party
TelephotoDiffers, but not ranked.
48MP Fusion Telephoto, 100mm (4x), f/2.8, 3D sensor-shift optical image stabilisationOfficial
12MP optical-quality 2x Telephoto, 52mm, f/1.6, sensor-shift OIS (enabled by 48MP Fusion Main)Official
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 or 60 fpsOfficial

Battery

SpecificationApple iPhone 18 ProApple iPhone 17
Battery capacity
4056mAh3rd party
3692mAh3rd party

You won’t notice this difference.

Battery per charge
No verified data
Claimed video playback

Marginal — most people won’t notice.

Battery lifespan
No verified data
1000cyclesOfficial
Fast charging

Marginal — most people won’t notice.

Wireless chargingSame.

Connectivity

SpecificationApple iPhone 18 ProApple iPhone 17
Wi-FiSame.
Wi-Fi 7 (802.11be) with 2x2 MIMOOfficial
Wi-Fi 7 (802.11be) with 2x2 MIMOOfficial
BluetoothSame.
USBDiffers, but not ranked.
USB-C, USB 3 (up to 10Gb/s), DisplayPortOfficial
USB-C, USB 2 (up to 480Mb/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 ProApple iPhone 17
Geekbench 6 (CPU, multi-core)
No verified data
3DMark Wild Life Extreme
No verified data
DXOMARK camera score
No verified data

Misc

SpecificationApple iPhone 18 ProApple iPhone 17
ColoursDiffers, but not ranked.
Black, Silver, Glacier, BurgundyOfficial
Black, White, Mist Blue, Sage, LavenderOfficial
SAR (EU, head)
No verified data
1.49W/kg3rd party
Repairability (EU class)
No verified data
2 attributes neither phone has a sourced figure for

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

Questions

Is the iPhone 18 Pro better than the iPhone 17?

On the figures, the iPhone 17 is ahead wherever there is a gap you’d notice: weight, 177 g against 211 g (both Apple UK). The iPhone 18 Pro 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 is ahead, narrowly: claimed video playback, 34 h against 30 h (both Apple UK), a borderline gap most people would not notice. The iPhone 18 Pro is ahead on paper, but not by a gap you’d notice: battery capacity, 4,056 mAh against 3,692 mAh (both GSMArena).

Which is lighter?

The iPhone 17, by a gap you’d notice: weight, 177 g against 211 g (both Apple UK).

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). The iPhone 18 Pro is brighter, narrowly: HDR peak brightness, 1,600 nits against 1,200 nits (both Apple UK), a borderline gap most people would not notice.

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 and 2032–2036 for the iPhone 17, our estimate, not Apple’s. Sources: Apple’s record from endoflife.date and Apple security releases.

Which is cheaper?

The iPhone 17 is £400 cheaper at UK RRP (£799 against £1,199). Prices from iPhone 18 Pro: Apple UK store; iPhone 17: 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.