Apple iPhone Duo vs iPhone 18 Pro
Can’t decide between the latest iPhones? Compare iPhone Duo and iPhone 18 Pro side-by-side and see how they differ in camera, battery, display size, and performance.
How do they compare at a glance?
Starting with the obvious, iPhone Duo folds and iPhone 18 Pro doesn’t. iPhone Duo has the largest iPhone display ever – 50% larger than iPhone 18 Pro Max. It’s a whole new design with a Grade 5 titanium frame and hinge cover. It has a 48MP dual Fusion camera system and the first under-display FaceTime camera.
While iPhone 18 Pro has a smaller 6.3-inch Super Retina XDR display and an aluminium unibody design. It has the ultimate Pro camera system with a 48MP main camera with variable aperture and Custom Pro controls.
So, will you pick the latest Apple innovation with the foldable iPhone Duo, or the ultimate Pro iPhone – iPhone 18 Pro? Here are the specs for each device to help you decide.
Apple iPhone Duo
Apple iPhone 18 Pro
Features
Rear Camera
iPhone Duo has a 48MP dual fusion camera system and all-new ways to shoot, like Smart Take, which captures photos automatically.
iPhone 18 Pro features the ultimate Pro camera system. The 48MP Fusion main camera has a variable aperture for better low light photos and video and impressive depth of field.
- 48MP Fusion Main, f/1.6, 26mm (wide)
- 48MP, f/2.2, 13mm, 120˚ (ultrawide)
- Video: Up to 4K at 24/25/30/60/100fps, 1080p at 25/30/60/120fps
- Dolby Vision HDR
- 48MP Fusion Main with variable aperture (f/1.48, f/1.8, f/2.8, f/4.0): 24mm
- 48MP Fusion Ultra Wide, f/2.2, 13mm, 120˚
- 48 MP Fusion Telephoto, f/2.8, 100mm
- Video: Up to 4K at 24/25/30/60/100/120fps, 1080p at 25/30/60/120/240fps
- Dolby Vision HDR
Front Camera
iPhone Duo has the first under-display FaceTime camera and 12MP Centre Stage front camera.
iPhone 18 Pro features an 18MP Centre Stage front camera.
Outer
- 12 MP, f/2.2, 20mm (ultrawide)
- Video: Up to 4K at 24/25/30/60fps, 1080p at 25/30/60fps
Inner
- Under-display FaceTime camera
- Video: 1080p at 30/60fps
- 18 MP Centre Stage, f/1.9, 20mm
- Video: Up to 4K at 24/25/30/60fps, 1080p at 25/30/60/120fps
Display
iPhone Duo has the largest iPhone display ever with nano-texture inner display to reduce glare.
With a 6.3-in Super Retina XDR display, iPhone 18 Pro has a brighter, more immersive display with better anti-reflection. It also has ProMotion up to 120Hz.
Both displays
- Super Retina XDR
- Apple Pencil support
Outer display
- 5.4 inch
- 2034 x 1398 pixels
Inner display
- 7.6 inch
- 2670 x 1878 pixels
- 6.3 inch
- 2622 x 1206 pixels
- Super Retina XDR OLED
- HDR10
Memory and Storage
iPhone Duo is available with 256GB, 512GB, 1TB, and 2TB storage options.
You can get iPhone 18 Pro with 256GB, 512GB, 1TB, or 2TB internal storage.
- 12GB RAM
- 256GB
- 512GB
- 1TB
- 2TB
- 12GB RAM
- 256GB
- 512GB
- 1TB
- 2TB
Performance and Security
Vapour cooled, pro performance. iPhone Duo’s A20 Pro chip is purpose-built for AI workloads. It has up to 50% faster 6-core CPU and up to 2.1x faster 7-core GPU compared to earlier iPhones.
iPhone 18 Pro is powered by the A20 Pro chip. Purpose built for AI with a next-generation vapour chamber and Dual 16 core Neural Engine. It also includes Siri AI – a more personal, more powerful AI assistant.
- Launch OS: iOS 27
- A20 Pro chip
- 6‑core CPU with 2 performance and 4 efficiency cores
- 7‑core GPU with Neural Accelerators
- Dual 16‑core Neural Engine
- Hardware-accelerated ray tracing
- IP68 (maximum depth of 6 metres up to 30 minutes) under IEC standard 60529
- TouchID
- Apple Intelligence
- Siri AI
- Launch OS: iOS 27
- A20 Pro chip
- 6‑core CPU with 2 performance and 4 efficiency cores
- 7‑core GPU with Neural Accelerators
- Dual 16‑core Neural Engine
- Hardware-accelerated ray tracing
- IP68 (maximum depth of 6 metres up to 30 minutes) under IEC standard 60529
- Face ID
- Apple Intelligence
- Siri AI
Battery
Get all-day power with the dual battery system. iPhone Duo gives you up to 8 hours more video playback when compared with previous iphones when using the inner display. And up to 21 hours more when using the outer display.
Get up to 30 hours of use per charge on iPhone 18 Pro and faster wired charging – up to 50% charge in around 15 minutes.
- Video playback
- Up to 44 hours when using the outer display
- Up to 31 hours when using the inner display
- Video playback (streamed)
- Up to 37 hours when using the outer display
- Up to 26 hours when using the inner display
- Wired charging: Up to 50% charge in around 20 minutes when using 60W‑capable adapter or higher with Adjustable Voltage Supply
- MagSafe wireless charging up to 25W
- Qi2 wireless charging up to 25W
- Video playback - Up to 34 hours
- Video playback (streamed) - Up to 31 hours
- Wired charging: Up to 50% charge in around 15 minutes when using 60W‑capable adapter or higher with Adjustable Voltage Supply
- MagSafe wireless charging up to 25W
- Qi2 wireless charging up to 25W
Colours
- Night Sky
- Star White
- Black
- Burgundy
- Glacier
- Silver
Size and Weight
- Height x Width x Depth
- Open: 117.8 x 164.6 x 5.2 mm
- Closed: 117.8 x 84.1 x 11.3 mm
- Weight: 254g
- Height x Width x Depth: 150 x 71.9 x 8.75 mm
- Weight: 211g