iPhone comparison

Original iPhone vs iPhone Duo

Compare Original iPhone vs iPhone Duo side by side: chip, memory, storage, display, ports, launch price and how each fits in Apple history.

At a glance

Released 19 years apart — the iPhone Duo is the newer model. 13 of 13 specs differ.

Going from the iPhone to the iPhone Duo, the chip changes from the Samsung ARM 11 to the Apple A20 Pro, the display grows from 3.5″ to 7.6″, base storage rises from 8 GB to 256 GB, and it gets heavier, 135 g to 254 g. Launch price rises from $599 to $1,999.

  • ChipSamsung ARM 11Apple A20 Pro
  • Display3.5″7.6″
  • Storage8 GB256 GB
  • Weight135 g254 g
  • Launch price$599$1,999

Specs side by side

SpeciPhoneiPhone Duo
ReleaseJune 29, 2007October 23, 2026
Launch price$599$1,999
Price today$922$2,019
ChipSamsung ARM 11 · 412 MHzApple A20 Pro
GraphicsPowerVR MBX LiteApple 7-core GPU with Neural Accelerators
CPU cores16
Memory128 MB
Storage8 GB256 GB
Display3.5" LCD, 320×480 (163 ppi) multitouch7.6" folding OLED (1878×2670) + 5.4" outer OLED (1398×2034), ProMotion
Weight135 g254 g
Dimensions115×61×11.6 mm117.8×164.6×5.2 mm open; 117.8×84.1×11.3 mm closed
Ports30-pin dock, 3.5 mmUSB-C, MagSafe, Qi2 25W
Operating systemiPhone OS 1.0iOS 27.1

Highlighted cells win clear more-is-better specs (memory, storage, lighter weight). Historical pricing uses approximate US CPI; clock speeds are not full real-world performance.

Why each matters

iPhone

Capacitive multitouch and a real desktop-class browser in your pocket, with no stylus and no keyboard.

iPhone Duo

Apple’s first foldable iPhone, first dual-display iPhone, and the largest iPhone display at launch.

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Last updated: 2026-09-11