Apple officially unveiled the iPhone 18 Pro and iPhone 18 Pro Max on September 9, 2026, alongside its first foldable iPhone, the iPhone Duo. The regular iPhone 18 was not announced at the September event, so this article focuses on the models Apple has officially introduced.

Apple has finally entered the foldable smartphone market.

At its September 2026 launch event, the company introduced the iPhone 18 Pro, iPhone 18 Pro Max, and something Apple fans have been waiting years to see: the iPhone Duo, Apple’s first foldable iPhone.

The announcement represents one of the biggest changes to the iPhone family in years. While the iPhone 18 Pro models concentrate on cameras, performance, battery life and artificial intelligence, the iPhone Duo takes the iPhone into an entirely new form factor.

Apple has also introduced the new A20 Pro chip, an improved camera system with variable aperture, a redesigned Dynamic Island, more powerful Apple Intelligence features and a new C2 cellular modem.

Here’s everything you need to know about Apple’s new iPhone lineup.

iPhone 18 Series: What Apple Actually Announced

One important point is that Apple did not announce the standard iPhone 18 at its September 2026 event.

The models officially introduced are:

• iPhone 18 Pro
• iPhone 18 Pro Max
• iPhone Duo — Apple’s first foldable iPhone

Apple is therefore taking a slightly different approach to its iPhone lineup this year.

The iPhone 18 Pro and Pro Max are the conventional flagship models, while the Duo is positioned as an entirely new premium category.

Apple says the iPhone Duo combines the familiar iPhone experience with a much larger foldable display and new software experiences designed specifically around its folding design.

iPhone 18 Pro and iPhone 18 Pro Max

The iPhone 18 Pro and Pro Max retain Apple’s familiar premium smartphone design, but Apple has made substantial changes underneath the surface.

The biggest upgrades are the camera system, A20 Pro processor, cooling system, battery, connectivity and AI capabilities.

The two phones come in four finishes:

• Black
• Silver
• Glacier
• Burgundy

The Pro models also have a redesigned, smaller Dynamic Island while retaining Face ID.

Display sizes

The iPhone 18 Pro comes with a 6.3-inch display, while the iPhone 18 Pro Max has a 6.9-inch display.

Both use Apple’s Super Retina XDR display technology and continue to offer ProMotion.

The Pro Max remains the better choice for people who want the biggest conventional iPhone screen, while the Pro is designed for people who prefer a more manageable size.

The Biggest Camera Upgrade Yet

One of the headline features of the iPhone 18 Pro series is the new camera system.

Apple has introduced a 48MP Fusion Main camera with variable aperture.

This is significant because the aperture can physically adjust to control how much light enters the camera.

The system uses six laser-cut blades and can automatically adjust depending on the scene. Users can also manually select from four aperture settings.

Apple lists these options as:

• ƒ/1.48
• ƒ/1.8
• ƒ/2.8
• ƒ/4.0

A wider aperture can allow more light into the sensor, while a narrower aperture can increase depth of field and keep more of a scene in focus.

This should be particularly useful for:

• Night photography
• Portraits
• Group photos
• Landscape photography
• Video recording
• Professional photography

Apple has also introduced more advanced manual camera controls.

Users can adjust:

• Aperture
• Shutter speed
• White balance
• Exposure
• Histogram controls

This makes the iPhone 18 Pro more attractive to photographers and mobile filmmakers who want greater control instead of relying entirely on automatic processing.

48MP Ultra Wide and Telephoto Cameras

The Pro camera system consists of three 48MP cameras:

• 48MP Fusion Main with variable aperture
• 48MP Fusion Ultra Wide
• 48MP Fusion Telephoto

Apple says the telephoto system can provide up to 8x optical-quality zoom.

The phones also feature an 18MP Center Stage front camera, which improves flexibility for selfies, video calls and content creation.

The front camera can automatically keep users in the frame and supports both portrait and landscape-oriented shooting.

Apple Reference Image Could Be Huge for Authenticity

Another interesting camera feature is Apple Reference Image.

The technology is designed to help users establish whether a photograph represents what the iPhone’s camera actually captured.

When Reference mode is used, the camera records signed sensor information that can be used to create an unalterable reference image.

That reference can then be compared with an edited photograph.

This could become particularly useful for:

• Journalists
• Photographers
• News organisations
• Investigators
• Content creators
• People concerned about AI-generated images

Apple is also adding support for technologies designed to help identify AI-generated or manipulated images.

A20 Pro: Apple’s New 2nm Chip

The iPhone 18 Pro lineup is powered by the new A20 Pro processor.

Apple says the chip is built using 2-nanometre process technology and features:

• 6-core CPU
• 7-core GPU
• Dual 16-core Neural Engine
• Integrated Neural Accelerators
• 50% more memory bandwidth than A19 Pro

Apple says the new GPU can be up to 40% faster than the A19 Pro, while the Neural Engine has been substantially upgraded for AI workloads.

This means the A20 Pro isn’t simply about making apps open faster.

A major focus is artificial intelligence.

The processor is designed to handle demanding on-device AI tasks, image processing, gaming and other computational workloads without relying entirely on cloud servers.

A New Cooling System

Powerful processors generate heat, especially during gaming, video editing and AI processing.

Apple has therefore redesigned the thermal system inside the iPhone 18 Pro.

The phones feature a larger next-generation vapor chamber.

Apple says the new vapor chamber has three times the surface area of the previous generation and can provide up to a 40% gain in sustained performance compared with the previous generation.

In practical terms, this should help the phones maintain high performance for longer periods rather than reducing performance when temperatures rise.

That could be particularly important for:

• Mobile gaming
• 4K video editing
• Long video recording sessions
• AI applications
• High-performance apps

New C2 Modem and Wi-Fi 7

Apple is also moving further toward its own connectivity technology.

The iPhone 18 Pro introduces Apple’s C2 cellular modem system.

Apple says C2 improves cellular performance and reliability while using less energy than its previous modem system.

The phones also feature Apple’s N1 wireless networking chip with:

• Wi-Fi 7
• Bluetooth 6
• Thread

This gives the iPhone 18 Pro family a more advanced connectivity platform for newer routers, accessories and smart-home devices.

Battery Life Gets a Major Upgrade

Battery life is another major area where Apple says it has made substantial progress.

The iPhone 18 Pro offers up to 36 hours of video playback on eSIM-only models, while the iPhone 18 Pro Max can reach up to 45 hours of video playback.

The Pro can reach approximately 50% charge in around 15 minutes with wired charging.

The Pro Max can reportedly gain around seven hours of video playback from five minutes of wired charging.

This makes the iPhone 18 Pro Max particularly attractive to people who spend long periods:

• Streaming video
• Gaming
• Recording videos
• Browsing
• Travelling
• Working from their phones

iOS 27 and the New Siri AI

The iPhone 18 Pro series launches with iOS 27.

But one of the biggest software stories is the arrival of the new Siri AI.

Apple is turning Siri into a considerably more capable conversational assistant.

Siri AI can understand personal context and work across information stored in apps such as:

• Messages
• Mail
• Photos
• Notes

It can also understand what is displayed on the screen and perform actions based on the information being viewed.

For example, users can ask Siri to find information hidden inside their messages or emails rather than manually searching through multiple applications.

Apple is also introducing Siri functionality within the Camera app, allowing users to use AI to understand objects and information around them.

The company says Apple Intelligence combines on-device processing with Private Cloud Compute when additional processing power is required.

What Is the iPhone Duo?

Now comes the most interesting device.

The iPhone Duo is Apple’s first foldable iPhone.

Unlike a traditional flip phone, the Duo folds like a book.

When closed, it provides a 5.4-inch outer display.

When opened, it reveals a huge 7.6-inch Super Retina XDR display.

Apple says the open display is about 50% larger than the iPhone 18 Pro Max.

This effectively gives users an iPhone that can transform into something closer to a small tablet.

iPhone Duo Design

Apple has used a Grade 5 titanium frame and hinge cover for the Duo.

The phone also has:

• Ceramic Shield protection
• Scratch-resistant inner-display coating
• IP68 water and dust resistance
• Titanium hinge cover
• Foldable inner display

Apple says the inner display is designed to look remarkably flat and smooth.

The company uses multiple ultra-thin display layers, nano-texture technology and optical adhesives to reduce reflections and minimise the visible crease.

The Duo comes in two colours:

• Night Sky
• Star White

Two Displays, 120Hz and 3,000 Nits

The internal screen is a 7.6-inch Super Retina XDR display.

The external screen measures 5.4 inches.

Both displays support:

• ProMotion up to 120Hz
• Up to 3,000 nits peak brightness
• Wide viewing angles
• OLED technology

The internal screen also features a custom nano-texture finish designed to reduce glare and reflections.

This makes the Duo particularly interesting for watching movies, gaming, browsing and reading.

The iPhone Duo Is Designed for Multitasking

This is where Apple’s foldable software becomes important.

The Duo isn’t simply an iPhone with a folding screen.

Apple has redesigned aspects of iOS 27 around the larger display.

Users can run two applications side-by-side using Split View.

For example, you could have Photos open on one side and Mail on the other and drag a photograph directly into an email.

The Duo can also be positioned in different ways.

It can be:

• Fully open
• Partially folded
• Used in portrait orientation
• Used in landscape orientation
• Positioned like a stand

The device can therefore act as a phone, entertainment screen, mini workstation and hands-free video-call device.

iPhone Duo Camera System

Despite being Apple’s most futuristic iPhone, the Duo does not have the same three-camera Pro system as the iPhone 18 Pro.

Instead, it has a 48MP Dual Fusion camera system consisting of:

• 48MP Fusion Main
• 48MP Fusion Ultra Wide

It supports up to 2x optical-quality zoom.

The phone also has a 12MP Center Stage front camera and an under-display FaceTime camera.

The Duo can record 4K video at up to 120fps and introduces several camera features specifically designed around the foldable design.

Smart Take, Duo Preview and Kid Cue

Apple has created several interesting photography features for the Duo.

Smart Take

Smart Take can detect when people are ready and automatically capture the photograph.

This is useful when taking group pictures without someone having to run back to the group before the timer expires.

Duo Preview

The outer display can show the person being photographed a live preview.

That means the subject can see the framing and adjust their pose before the picture is taken.

Kid Cue

Kid Cue uses animations on the outer display to attract children’s attention toward the camera.

Duo FaceTime

The outer display can also allow people nearby to participate in a FaceTime call without everyone having to crowd around the same screen.

A20 Pro Also Powers the iPhone Duo

Interestingly, Apple did not create a weaker processor for its foldable.

The iPhone Duo also uses the A20 Pro.

Apple says the chip provides up to:

• 20% faster 6-core CPU performance than A19 Pro
• 50% more memory bandwidth
• 7-core GPU with Neural Accelerators
• Dual 16-core Neural Engine

The Duo also uses a vapor-based cooling system to help manage heat during demanding tasks.

This makes it a serious productivity and gaming device rather than simply a premium fashion phone.

iPhone Duo Battery Life

Foldable phones traditionally have to balance a large display with limited internal space.

Apple has approached this differently.

The Duo uses an iPhone-first dual-battery system.

Apple says its eSIM-only design also frees internal space that can be used for battery capacity.

The company rates the Duo for up to:

• 31 hours of video playback using the inner display
• 44 hours using the outer display

Fast wired charging can take the phone to approximately 50% in around 20 minutes.

Apple Pencil Support Finally Comes to iPhone

One of the most interesting additions is Apple Pencil support.

Apple says the iPhone Duo will support the Apple Pencil (USB-C), although the functionality is scheduled to arrive later in 2026.

This could make the large internal display particularly useful for:

• Note-taking
• Drawing
• Marking documents
• Editing photographs
• Studying
• Sketching
• Productivity

It also strengthens the argument that Apple sees the Duo as a phone-tablet hybrid.

Touch ID Returns on the iPhone Duo

Apple has made another unusual decision with the Duo.

Instead of Face ID, the foldable uses Touch ID integrated into the side button.

This allows biometric authentication whether the phone is open or closed.

The Pro models, meanwhile, continue to use Face ID.

iPhone Duo Is eSIM-Only

The iPhone Duo is eSIM-only worldwide.

There is no physical SIM card slot.

Apple says this allows more internal space for components and battery while also making it easier to store and switch between multiple mobile plans.

This is something Nigerian buyers should pay particular attention to, because eSIM availability and carrier support can vary between countries and networks.

iPhone 18 Pro vs iPhone Duo

The specifications above are based on Apple’s official product information.

iPhone 18 Pro and Duo Prices

Apple’s new flagship pricing is significantly higher than many previous iPhone generations.

iPhone 18 Pro

Starting price: $1,199

Storage options:

• 256GB
• 512GB
• 1TB
• 2TB

iPhone 18 Pro Max

Starting price: $1,299

Storage options:

• 256GB
• 512GB
• 1TB
• 2TB

iPhone Duo

Starting price: $1,999

Storage options:

• 256GB
• 512GB
• 1TB
• 2TB

The 2TB Duo reaches $3,199, according to reports following Apple’s launch.

Important: These are Apple’s U.S. prices. Nigerian retail prices will depend on exchange rates, taxes, import costs, retailer margins and local availability.

Release Dates

The iPhone 18 Pro and iPhone 18 Pro Max will be available for pre-order from September 12, 2026, with retail availability beginning September 18 in initial markets.

The iPhone Duo arrives later.

Apple says:

• Duo pre-orders: October 16, 2026
• Duo availability: October 23, 2026

What Happened to the Regular iPhone 18?

This is one of the biggest unanswered questions surrounding Apple’s 2026 strategy.

Apple did not launch the standard iPhone 18 at its September event.

Instead, the company concentrated on the Pro models and its new foldable Duo.

Reports indicate that the standard iPhone 18 could arrive later, potentially alongside other non-Pro models in 2027. However, Apple has not officially announced a release date for the regular iPhone 18.

Therefore, buyers should be careful with online articles presenting unreleased standard iPhone 18 specifications as confirmed facts.

Is the iPhone Duo Worth Buying?

The iPhone Duo is arguably the most significant new iPhone design since the introduction of the modern edge-to-edge iPhone.

Its biggest advantages are obvious:

Large screen: The 7.6-inch display provides considerably more space than a conventional iPhone.

Multitasking: Split View makes the phone much more useful for productivity.

Portability: It folds down to a compact 5.4-inch form factor.

Performance: The A20 Pro puts it in the same performance class as Apple’s Pro models.

Camera: Two 48MP rear cameras provide high-resolution photography without making the device as camera-focused as the Pro Max.

Apple Pencil: Stylus support expands its usefulness for work and creativity.

AI: Siri AI and Apple Intelligence are deeply integrated into the device.

However, the biggest disadvantage is the price.

At $1,999, the Duo costs considerably more than the iPhone 18 Pro and Pro Max.

It is therefore likely to appeal primarily to buyers who specifically want a foldable phone and are willing to pay a premium for Apple’s ecosystem.

iPhone 18 Pro vs iPhone Duo: Which One Should You Buy?

For most users, the iPhone 18 Pro is likely to be the more sensible purchase.

Choose the iPhone 18 Pro if you want:

• A compact premium iPhone
• Excellent cameras
• Variable aperture
• Strong gaming performance
• Face ID
• Lower entry price
• Traditional smartphone design

Choose the iPhone 18 Pro Max if you want:

• The largest conventional iPhone
• Maximum battery life
• The best Pro camera experience
• Large-screen gaming and video
• Up to 2TB storage

Choose the iPhone Duo if you want:

• A foldable iPhone
• A tablet-sized display in a pocketable device
• Side-by-side multitasking
• Apple Pencil support
• Flexible viewing angles
• A completely different iPhone experience

Last Words On The New iPhones

The iPhone 18 series is not simply another yearly iPhone upgrade.

The iPhone 18 Pro and Pro Max bring substantial improvements to Apple’s established flagship formula, particularly with the A20 Pro processor, variable-aperture 48MP camera, improved thermal management, longer battery life, C2 modem and Siri AI.

But the iPhone Duo is the real headline.

Apple has finally entered the foldable smartphone market with a device that combines a 5.4-inch outer display with a 7.6-inch foldable screen, A20 Pro performance, dual 48MP cameras, Apple Pencil support, multitasking and a completely redesigned iOS experience.

The $1,999 starting price makes it an expensive proposition, but Apple is clearly positioning the Duo as much more than a conventional foldable phone. It is effectively trying to combine an iPhone and small tablet into one device.

For Apple, the biggest question is no longer whether it can make a foldable iPhone. It has.

The real question is whether the iPhone Duo can convince millions of iPhone users that folding their iPhone open is the future of mobile computing.