The iPhone 18 Pro introduces a faster A20 Pro processor, a variable-aperture main camera, improved cooling, longer battery life, faster wired charging and a smaller Dynamic Island.
However, the improvements come at a higher price. The new model starts at £1,199 for 256GB, £100 more than the launch price of the equivalent iPhone 17 Pro.
That leaves prospective buyers with a familiar question: is Apple's latest Pro model worth the additional cost, or does last year's flagship still offer enough to make it the more sensible option?
iPhone 18 Pro: Key specifications
Apple's latest standard-sized Pro iPhone is its first to feature a variable-aperture main camera. The company has also upgraded its processor, cooling system and battery performance.
The iPhone 18 Pro is available in burgundy, glacier blue, black and silver.
Key specifications:
- Display: 6.3in OLED, 120Hz, 2,622 x 1,206 pixels, 460ppi
- Processor: Apple A20 Pro
- Storage: 256GB, 512GB, 1TB and 2TB
- Dimensions: 150mm x 71.9mm x 8.75mm
- Weight: 211g
- Main camera: 48MP variable aperture
- Ultrawide camera: 48MP
- Telephoto camera: 48MP
- Selfie camera: 18MP
- Battery: Up to 34 hours of video playback
iPhone 17 Pro: Key specifications
The iPhone 17 Pro retains the same 6.3in display as its successor and has a similar overall design. It features three 48MP rear cameras and Apple's A19 Pro chip.
It launched at £1,099, although the arrival of the iPhone 18 Pro means the previous-generation model is now available at reduced prices from some retailers.
Key specifications:
- Display: 6.3in OLED, 120Hz, 2,622 x 1,206 pixels, 460ppi
- Processor: Apple A19 Pro
- Storage: 256GB, 512GB and 1TB
- Dimensions: 150mm x 71.9mm x 8.75mm
- Weight: 204g
- Main camera: 48MP
- Ultrawide camera: 48MP
- Telephoto camera: 48MP
- Selfie camera: 18MP
- Battery: Up to 31 hours of video playback
Design: Familiar looks with a smaller Dynamic Island
The iPhone 18 Pro retains much of the design language introduced with the iPhone 17 Pro.
Apple continues to use an aluminium unibody construction, Ceramic Shield 2 and the large camera plateau on the rear. The dimensions are also unchanged, although the newer model is slightly heavier at 211g compared with 204g for the iPhone 17 Pro.
The most obvious change is on the front of the device.
Apple has reduced the size of the Dynamic Island, marking the first time the company has made the pill-shaped cutout smaller since introducing it with the iPhone 14 Pro in 2022.
The smaller Dynamic Island is accompanied by an expanded Live Activities capability. The iPhone 18 Pro can display three Live Activities simultaneously, compared with two on its predecessor.
The display itself remains virtually unchanged.
Both phones have a 6.3in Super Retina XDR OLED display with a 2,622 x 1,206 resolution, an always-on display and ProMotion with adaptive refresh rates of up to 120Hz.
Brightness figures are also identical. Both models can reach 1,600 nits of peak HDR brightness and up to 3,000 nits outdoors, while the displays can dim to as little as one nit.
Both also have an anti-reflective coating.
Colour options provide another point of difference. The iPhone 17 Pro comes in deep blue, cosmic orange and silver, while Apple has introduced burgundy and glacier blue for the newer model, alongside silver and black.
Cameras: The biggest upgrade
The camera system represents one of the most significant changes between the two generations.
The iPhone 17 Pro already features three 48MP rear cameras, including a 48MP telephoto camera offering 4x optical zoom and up to 8x optical-quality zoom.
The iPhone 18 Pro retains the three-camera configuration but introduces a major change to the main camera: a variable aperture.
Instead of having a fixed aperture, the 48MP main camera uses six laser-cut blades that physically adjust the size of the lens opening according to lighting conditions and the desired depth of field.
Users can manually select from four aperture settings: f/1.48, f/1.8, f/2.8 and f/4.0. The camera can also adjust the aperture automatically.
A wider aperture allows more light to reach the sensor and produces a shallower depth of field, while a narrower aperture keeps more of the scene in focus.
Apple says the f/1.48 setting offers 50 per cent better low-light performance, while f/2.8 provides greater depth and f/4.0 delivers the maximum depth of field. The default setting is f/1.8.
Apple has also developed a new sensor and computational photography system for the main camera, alongside additional professional controls.
Users can manually adjust aperture, shutter speed and white balance, while a histogram can now be viewed directly within the Camera app.
The ultrawide and telephoto cameras remain largely unchanged. The phone features a 48MP ultrawide camera with a 120-degree field of view and a 48MP 4x telephoto camera, with up to 8x optical-quality zoom and 40x digital zoom.
The front-facing camera remains an 18MP unit.
Apple has also introduced new software-based photography and video features, including additional Photographic Styles controls for texture and grain and the ability to apply cinematic effects after recording video.
Time-lapse recording can now be captured in 4K Dolby Vision HDR.
For photography enthusiasts, the variable-aperture main camera could therefore represent the strongest reason to move from the iPhone 17 Pro to the newer model.
Performance: A20 Pro brings more power
The iPhone 17 Pro introduced Apple's A19 Pro chip and was also the company's first Pro iPhone to use a vapour chamber for improved heat management.
The iPhone 18 Pro takes both technologies further.
It is powered by the new A20 Pro chip, which Apple says uses a more efficient 2nm manufacturing process compared with the 3nm process used for the A19 Pro.
Both processors have six-core CPUs, but the A20 Pro features a seven-core GPU, compared with six GPU cores in the A19 Pro.
Apple has also doubled the Neural Engine from 16 cores to 32, increasing the processing resources available for on-device artificial intelligence tasks.
According to Apple, graphics performance can be up to 40 per cent faster than the A19 Pro.
The cooling system has also received a major upgrade. Apple says the new vapour chamber has three times the surface area of the system used in the iPhone 17 Pro, allowing the new model to deliver up to 40 per cent better sustained performance.
In practical terms, this should allow the phone to maintain higher performance for longer during demanding workloads before thermal limitations reduce its speed.
The iPhone 18 Pro also marks Apple's first Pro iPhone to use the company's own C2 cellular modem, replacing the Qualcomm modem found in the iPhone 17 Pro.
Apple says the C2 provides faster uploads than the C1X modem and uses 15 per cent less energy than the C1X.
Battery life and charging
Battery performance is another area where the iPhone 18 Pro moves ahead.
The iPhone 17 Pro is rated for up to 31 hours of video playback and 28 hours of streamed video playback.
The iPhone 18 Pro increases those figures to 34 hours of video playback and 31 hours of streamed video playback.
Apple also provides a typical-use estimate for the new model, rating it for up to 23 hours on a single charge.
There is an even higher figure for eSIM-only versions of the phone, which Apple rates at up to 36 hours of video playback. However, UK models with a physical SIM slot are rated at up to 34 hours.
Charging has also been improved.
The iPhone 17 Pro can reach 50 per cent charge in approximately 20 minutes when paired with a 40W adapter or higher. The iPhone 18 Pro can reach 50 per cent in about 15 minutes with a 60W adapter or higher.
MagSafe charging remains slower, taking around 30 minutes to reach 50 per cent.
Price: The iPhone 18 Pro costs more
The higher specifications come with a higher asking price.
The iPhone 17 Pro launched at £1,099 for 256GB. The iPhone 18 Pro starts at £1,199 for the same amount of storage, representing a £100 increase without any additional base storage.
The iPhone 18 Pro costs:
- 256GB: £1,199
- 512GB: £1,399
- 1TB: £1,799
- 2TB: £2,399
Apple has also introduced a 2TB storage option for the standard-sized Pro model. Previously, 2TB storage was reserved for the Pro Max.
For comparison, the larger iPhone 18 Pro Max starts at £1,299 for 256GB and rises to £2,499 for the 2TB model.
Should iPhone 17 Pro owners upgrade?
The iPhone 18 Pro is an evolutionary rather than revolutionary update.
Its design and display remain extremely similar to those of the iPhone 17 Pro, while the biggest hardware changes are concentrated in the camera system, processor, cooling and battery performance.
The variable-aperture main camera is arguably the most substantial addition. It gives photographers more control over light and depth of field while adding professional controls that are not available on the previous model.
The A20 Pro also provides greater processing power, while the upgraded cooling system is designed to maintain that performance for longer.
Battery life and charging speeds have improved as well.
However, owners of an iPhone 17 Pro are already using a high-end device with a powerful processor, three 48MP rear cameras, a 120Hz display and strong battery performance.
The £1,199 starting price therefore makes the upgrade a more significant financial decision, particularly when discounted iPhone 17 Pro models are available.
For existing iPhone 17 Pro owners, the decision largely comes down to whether the new camera capabilities, additional performance and battery improvements justify the extra expense.
For someone choosing between the two models for the first time, the price difference between a discounted iPhone 17 Pro and the new iPhone 18 Pro will be an important factor.
Ultimately, the iPhone 18 Pro brings meaningful technical improvements, but much of its appeal lies in refining an already mature flagship rather than introducing a completely new design or experience.